Two bulls born in the 1960s—Chief and Elevation—sit behind 99.84% of today’s AI sires. The gift: more milk, better udders. The bill: a 9.99% inbreeding tab now in your heifer pen.

Picture every Holstein in North America walking into one barn for Father’s Day dinner.

Millions of black-and-white cows, shoulder to shoulder, in a building the size of a county. They’ve come to toast their fathers, the way families do this time of year. And here’s the part that ought to stop you cold while you’re scraping the parlor this Sunday: almost every animal in that impossible room would be raising a glass to the same two dads.

Not two dozen. Not two hundred. Two.

Their names were Pawnee Farm Arlinda Chief and Round Oak Rag Apple Elevation. One arrived on an Indiana spring morning in 1962. The other showed up in 1965, on a modest Virginia farm nobody had heard of. Neither ever knew the other. And yet a Y-chromosome study that combed through 62,897 bulls born between 1950 and 2013 found that virtually every active North American Holstein AI bull traces its paternal line back to just these two grandfathers. The Bullvine’s own analysis of that work puts the figure at 99.84% of active AI bulls — split almost eerily down the middle, roughly half Chief and half Elevation. 

Read that number again. Ninety-nine point eight four percent. It’s as if the entire breed flipped a coin sixty years ago and has been living with the result ever since.

So, before you pour your coffee and head out to check the fresh pen, let me properly introduce you to the two dads at the head of your herd’s table. Once you know their story, you’ll never look at your milking string the same way again.

The $4,300 gamble that started a dynasty

Start with the elder. In a family reunion, you always start with the elder.

Here’s the thing about Chief, though — the gamble that made him happened before he ever drew breath. At the Pawnee Farm dispersal, his dam, Pawnee Farm Glenvue Beauty (EX-90), crossed the auction block and sold for $4,300. Now, picture what that meant in 1962. You could buy a new car twice over. You could put serious money down on land. Somebody stood at that ring, looked at a cow, and decided she was worth more than a house lot. 

They turned out to be right in a way nobody could have predicted.

Because Beauty’s son became a kind of one-animal continent. By the time the dust settled, Chief had produced 16,000 daughters, 500,000 granddaughters, and more than two million great-granddaughters. Stack that against the cow your grandfather was proud to own, and you start to feel the gravity of the thing. This wasn’t a good bull. This was a whole population’s worth of fatherhood compressed into one animal. 

And his daughters could milk. The proof has a name — Beecher Arlinda Ellen. In 1975, on Harold Beecher’s farm near Rochester, Indiana, Ellen completed a lactation of 55,661 pounds, the first cow in the entire Holstein breed to crack 55,000 in a single year — a world record that would stand for nearly two decades.

Here’s the part worth sitting with. Reporters came calling, the way they do when a farm makes history, and asked what magic ration he’d been feeding her. By Harold Beecher’s own account, he hadn’t done anything special at all. Think about that for a second. A humble Indiana dairyman, a world record standing in his tie-stall, and his honest answer was a shrug. He knew what every good cowman knows — you don’t feed your way to a number like that. You breed your way there. Ellen wasn’t a fluke. She was Chief’s signature, written in the milk tank.

And here’s what made Chief’s story the hard one. This was the era before genomics — no DNA test to whisper which young bull was worth sampling. You bred him, you waited, and you milked his daughters for years before the herd finally told you whether you were holding a fortune or a flop. Chief’s people waited. And the daughters kept coming back with the same verdict, herd after herd, in barns that had never heard of Pawnee Farm: more milk, again, and again. A father proves himself slowly. Chief proved himself the only way the times allowed — and the breed was never the same after the proof came in.

When sons become legends in their own right

Great fathers don’t just have great children. They have children who become great fathers themselves — and that’s where Chief’s story gets bigger than one bull.

His most influential sons read like a roll call: Walkway Chief Mark, S-W-D Valiant, Glendell Arlinda Chief, and Milu Betty Ivanhoe Chief. Take Walkway Chief Mark. He was only ever sampled because his full brother died, and somebody needed a backup. The spare. That backup bull accounted for roughly 7% of every Holstein genome on this continent. (The Bullvine has told that whole strange, wonderful story in full in Walkway Chief Mark’s profile — it’s one of the great accidents in breeding history.) 

Seven percent. From the understudy.

A powerful father’s influence doesn’t stop with his own kids. It compounds. It ripples down through sons, and their sons, until you can’t open a modern catalog without bumping into the old man’s name a dozen times over. Chief didn’t just have a big family. He had a big family that kept having big families, branch after branch — one line eventually threading down to To-Mar Blackstar, himself one of the most heavily used bulls in breed history. Generation after generation, the table just kept getting longer, and the gambler who paid $4,300 for a cow back in 1962 kept looking smarter. 

The B-team mating that produced the Bull of the Century

Now, meet the other grandfather. And get ready to be surprised, because Elevation’s beginning was the opposite of a sure thing.

Down on Round Oak Farm in the Virginia piedmont, Ronald A. Hope and his family were running a working dairy, not a genetics empire — the kind of modest operation you’d have driven past a hundred times without a second look. The mating that produced Elevation wasn’t some master plan off a proof sheet. It came from Ron Hope’s cousin, George Miller, who suggested the cross. Just a hunch, passed down within the family. Try this one. 

And honestly, on paper, you’d have shrugged and moved on. The sire, Tidy Burke Elevation, had fertility trouble. The dam, Round Oak Ivanhoe Eve, had been shuffled onto the farm’s B-team because she matured too slowly. A questionable father. An overlooked mother. A cousin’s offhand suggestion.

What walked out of that barn in 1965 changed the world. 

I don’t say that lightly. He would later be named the “Bull of the Century.” But forget the title for a second and walk into a parlor full of his daughters instead. Look up. There it is — the udder. High, wide, held tight to the body, still bolted on the way you’d want it two and three lactations after the cows around it had broken down and shipped. Watch one of those daughters walk: sound on her feet into her sixth lactation, settling back in calf as if it were nothing, walking up to milk at an age when her contemporaries were long gone. That’s what Elevation transmitted — and the remarkable thing is he transmitted it all at once: production, udder quality, mobility, fertility, and longevity, in one package, when breeders had spent generations trading one good trait away to get another.

Put numbers on it, and your cup goes down on the table. His daughters averaged about 29,500 pounds in their first lactation — roughly 15% above their contemporaries in the 1970s. And while the industry average was near 2.8 lactations per cow, Elevation’s daughters averaged 4.2. 

Do the barn math on that. Your average cow leaves after 2.8 lactations. Your neighbor’s Elevation daughters are still walking into the parlor at 4.2. Same feed bill to raise the heifer, same calving, and he’s getting roughly half again the productive life out of every replacement. That’s not a show-ring statistic. That’s a mortgage payment. For the farmer living it, the whole thing came down to a simple difference: a cow you fought all year, versus one you forgot to worry about.

A father whose children fill 45 countries

If Chief built his dynasty through a few towering sons, Elevation built his through sheer abundance.

Over 10,000 of his sons became registered AI sires. His semen was shipped to 45 countries. And his descendants — brace yourself — run an estimated 8.8 to 9 million worldwide. There are whole nations with fewer people than this one bull has grandchildren. 

The most famous of those children crossed the border into Canada and became a legend in his own right: Hanoverhill Starbuck, a $2,500 calf whose semen eventually sold for roughly $25 million. (Starbuck’s story deserves its own evening — The Bullvine has told it in full.) Through Starbuck and ten thousand other sons, Elevation became the patriarch at the head of dinner tables from Wisconsin to the Netherlands to Japan. 

And here’s a detail that ties the whole tree together. Eve — the overlooked B-team mother nobody expected anything from — traced back twenty times to a foundation cow named Johanna Rag Apple Pabst. The “Rag Apple” buried in Chief’s name comes from the same deep well. These two grandfathers, born to different farms in different decades, weren’t strangers at all. Walk far enough up the family tree, and they shake hands. The reunion was always a family affair. 

Two fathers, two temperaments

Set the two old bulls down at the same table, and you’d have spotted the difference fast. They were nothing alike.

Chief was the quiet workhorse — a production sire whose genius announced itself in the milk tank, lactation after lactation, value measured in pounds and years rather than ribbons. Elevation was the showman with substance, one of the first proven bulls of the modern era who could put a daughter in the ring and fill the bulk tank. One made cows that paid. The other made cows that paid and turned heads on the colored shavings.

Elevation did something else, too — he changed the very machinery that moves genetics around the world. His semen, by one account, helped finance Select Sires and solidify it as a cooperative during its fragile early years. As his own breeder’s cousin, George Miller, put it: “It’s been said that Elevation built the barns at Sire Power and Select Sires.” 

And his fingerprints are still all over the modern toolbox. Here’s the mind-bender: by The Bullvine’s analysis, Elevation’s DNA makes up about 8.3% of the CDCB’s genomic reference population — the very dataset that modern genomic predictions are trained on. Think about that the next time a young genomic bull’s numbers flash up on your screen. The math ranking him was partly based on his own great-great-grandfather. 

The roots run deeper than you think

Speaking of walking up the tree, the story doesn’t actually start with these two.

Dr. Chad Dechow’s work shows that all the great 1960s pillars of the breed trace their male lines back to just two bulls born in the early 1880s: one called Neptune H, born in 1880, and one named Hulleman, born in 1881.

Sit with that. The Father’s Day table you’ve been picturing doesn’t have two chairs at the head — it has two chairs in this generation. Keep walking back, and the whole enormous family narrows again and again until, in the 1880s, it comes down to a pair of bulls who lived before the automobile, before the milking machine, before electricity reached most farms.

We like to think we’re steering. Our index, our matings, our careful selection — surely that puts us in the driver’s seat. And it does, a little. But we’re steering a river that’s been running in the same channel for nearly 140 years. Someday, a breeder none of us will ever meet will trace a herd back to a bull you used this week, and they’ll feel exactly the way you feel as you read these names right now. That’s the strange gift of a breed this old. You’re never just raising cattle. You’re handing something down.

The morning the numbers didn’t add up

Now comes the hard part of every honest Father’s Day — the part where you love somebody and still have to tell the truth about them.

It started, in a way, with researchers staring at a spreadsheet that made no sense.

In 2011, USDA scientists were studying haplotypes — long stretches of chromosome inherited as a single block — when they noticed something wrong on chromosome 5. A particular haplotype was common across the breed. Carriers were everywhere. By the plain arithmetic of inheritance, there should have been thousands of living animals carrying two copies of it. They went looking for those animals. There were none. Not a single one. The double-carriers weren’t dying young or growing up sickly — they were never being born at all. 

Five years later, a team led by Heather Adams with USDA’s Paul VanRaden ran the cause to ground: a single “nonsense” mutation in a gene called APAF1, a typo that truncates more than half the protein it’s supposed to build. 

One copy, and a calf is just a carrier — perfectly healthy. But breed a carrier to a carrier, which is heartbreakingly easy when half the breed descends from the same grandfather, and two copies quietly kill the embryo before it’s ever born.

They traced the haplotype straight back to Chief. And before anyone knew it was there, that single inherited flaw is estimated to have caused roughly half a million spontaneous abortions worldwide — and about $420 million in losses over 35 years. The flip side runs staggeringly in the other direction: the same researchers estimate that Chief’s beneficial genetics added about $30 billion in increased milk production. The gift and the bill, written into the same animal. 

Half a million calves conceived and quietly lost. Half a million heat checks that came up empty — a farmer standing in the barn at dusk, wondering what went wrong, never knowing the answer had been written into the breed’s most celebrated father sixty years before he was born.

That’s no reason to resent Chief. A father doesn’t choose the genes he carries. But it’s the unavoidable math of a narrow family tree: when everyone shares the same grandfather, his hidden flaws stop being rare. The good news — once the mutation had a name, breeders could test for it and breed around it, and U.S. carrier frequency fell from roughly 8% to about 2% within a few years. The defect didn’t end Chief’s legacy. It just made us smarter about how we carry it forward. 

The number landing in your heifer pen right now

Here’s where the history stops being history.

According to Lactanet’s August 2025 update, the average pedigree-based inbreeding of Canadian Holstein heifers born in 2024 hit 9.99%. Nearly ten percent. A generation ago, that figure would have set off alarms. Today it’s just Tuesday. 

That’s what two grandfathers at the head of the table eventually costs a family. Every percentage point of inbreeding chips away at fertility, at calf vigor, at the very longevity that made Elevation famous in the first place. The traits these great fathers gave us are exactly the ones a too-narrow pedigree slowly takes back. By the USDA’s measure, Dr. Dechow puts both Chief and Elevation at a genetic relationship of about 14% to the modern Holstein cow. Two bulls, wearing different hides, make up a huge chunk of your herd. (The Bullvine has run the dollars-and-cents of where this is heading in its breakdown of Holstein’s inbreeding bill.) 

What this means for your operation

Here’s the good news in all of this: knowing the family history is exactly what lets you manage it. So you’ve met the grandfathers — what do you actually do with this on Monday morning? A few concrete things.

Run your matings through a genomic inbreeding tool, not just a pedigree check. With 99.84% of AI sires tracing to two bulls, pedigree alone hides how related your “outcross” really is. The genomic future inbreeding value tells the truth.

Check carrier status for HH1 (APAF1) before you breed a deep-Chief cow. Most catalogs list it. Avoiding carrier-to-carrier matings is the cheapest insurance you’ll ever buy against an empty calving pen.

Put a hard ceiling on expected progeny inbreeding. Many breeders aim to keep a mating under roughly 6–7%. With the Canadian average heifer already at 9.99%, every mating you pull below that line is a small win for the next generation.

Actively hunt the rare outcross lines. They exist. They’re harder to find, and they’re worth the search — the breed’s long-term fertility depends on the breeders who refuse to let the family tree narrow any further.

None of this is a knock on Chief or Elevation. You’d have made the same call any of those old breeders made — the production was real, the longevity was real, the money was real. This is simply the next chapter of stewardship: honoring what the grandfathers built while quietly widening the table for everyone who comes after.

The reunion, and what we owe the dads at the table

Come back to that impossible barn one last time.

The millions of cows. The two chairs at the head. The two old bulls who never met and yet fathered nearly all of it — one a $4,300 gamble out of Pawnee Farm, one a cousin’s hunch off a modest Virginia hillside that had no business working and changed everything anyway. Between them, they handed the dairy world more milk, better udders, longer-lasting cows, and a uniformity that built the modern industry. They also handed down a narrower gene pool and a few hidden flaws their children are still reckoning with. Both things are true. That’s what it means to inherit from a great father — the gifts and the burdens come in the same package, and the work of a lifetime is sorting out what to do with each.

So this Sunday, when somebody asks what you do for a living, tell them the truth. You’re raising the great-great-grandchildren of two bulls born in the 1960s — who themselves came down from a pair born in the 1880s — in a family reunion that has never once adjourned, and never will.

Pour a little extra in the cup. The grandfathers earned it.

Key Takeaways

• That “outcross” bull on your mating list probably isn’t one — 99.84% of active AI sires trace to Chief or Elevation, so run matings through a genomic inbreeding tool, not just the pedigree.
• Before you breed a deep-Chief cow, check HH1 (APAF1) carrier status on both sides; a carrier-to-carrier mating is the cheapest way to end up with an empty calving pen.
• The traits these two gave us — milk, udders, longevity — are the same ones a narrow pedigree quietly takes back, so aim to keep expected progeny inbreeding under roughly 6–7%, against a breed-average heifer already at 9.99%. 
• The breed’s long-term fertility depends on the breeders who hunt and use the rare outcross lines — they’re harder to find, and they’re worth the search. 

Methodology Note

This article uses several distinct measures of genetic influence that should not be conflated. The 99.84% figure is a paternal Y-chromosome lineage measure derived from Yue et al. (2015, Journal of Dairy Science 98(4):2738–2745, examining 62,897 bulls) — it describes male-line descent, not total genome share; the 99.84% / roughly-half-each breakdown is The Bullvine’s analysis of that dataset. The genetic relationship to the modern Holstein cow (~14% for both bulls) comes from Dr. Chad Dechow’s USDA-affiliated analysis, as reported in Hoard’s Dairyman. The Bullvine reports that Elevation accounts for approximately 8.3% of the CDCB genomic reference population. The HH1/APAF1 facts come from the 2011 USDA haplotype discovery (VanRaden et al., J. Dairy Sci. 94:6153–6161) and Adams et al. (2016, J. Dairy Sci. 99(8):6693–6701), which identified the causative APAF1 nonsense mutation. The estimates of roughly half a million abortions, about $420 million in losses over 35 years, and about $30 billion in beneficial milk production are reported by UC Davis (2016). The 9.99% inbreeding figure is a pedigree-based coefficient for Canadian Holstein heifers born in 2024 (Lactanet, August 2025) and may differ from U.S. CDCB genomic measures. National figures may not reflect your region or herd; verify carrier status and inbreeding values against current CDCB/Lactanet data for your own matings.

Questions, corrections, or a number you’d like us to double-check? Reach out to editor@thebullvine.com

Continue the Story

• Against All Odds: The Dreamers, Rebels, and Risk-Takers Who Built the Modern Holstein — Built in the same era of radical genetic gambles, this narrative follows the rebels who risked their fortunes on unfashionable traits like red coat color, proving that true breeding mastery requires looking past current industry fashion.
• Round Oak Rag Apple Elevation: The Bull That Changed Everything — Shines a deeper light on the world Ron Hope and George Miller were navigating, revealing how their B-team mating slowly overcame early show-ring skepticism to ultimately construct the physical foundation of the modern global industry.
• How Seven Franchise Cows: Roxy, Dellia, Blackrose, and Four Others Built Modern Holstein – One Daughter at a Time — Carries forward what the patriarchs started by tracing the maternal empires that matched their genes, demonstrating how a handful of legendary matriarchs anchored the family lineage and still dictate the performance of your milking string today.

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