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Ranchers & Developers Boomtown: The West’s Most Western Town Arrived 1944 Ranchers and Arabian Breeders

Fowler & Anne McCormick: The Arabian Horse Ranch That Became Central Scottsdale

Fowler McCormick, grandson of both Cyrus McCormick and John D. Rockefeller, and his wife Anne "Fifi" Potter Stillman McCormick assembled a ranch of roughly 4,200 acres in the middle of what is now Scottsdale. Anne made it one of the country's serious Arabian horse operations, the couple gave the city 100 acres for a park in 1967, and the 1970 sale of the ranch produced McCormick Ranch, one of America's pioneering master-planned communities.

Illustration for Fowler & Anne McCormick, ranchers and arabian breeders, Scottsdale, Arizona

The 30-second version

  • Fowler McCormick, International Harvester's president and then board chairman, and his wife Anne bought a 160-acre ranch between the Indian Bend Wash and the McDowells, in April 1944 by the most detailed account, and built it out to roughly 4,200 acres.
  • Anne bought her first Arabian in 1948, imported the stallion Naborr in 1963 and ran Paradise Park, a 150-acre arena where the Valley's Arabian shows were held from the mid-1950s through 1968.
  • In 1967 the McCormicks donated 100 acres to Scottsdale on the condition it become a park for everyone; 30 of those acres are McCormick-Stillman Railroad Park.
  • Anne died in May 1969, and in 1970 the ranch sold to Kaiser-Aetna for about $12 million; Fowler died in 1973.
  • Kaiser-Aetna's plan became McCormick Ranch, with seven man-made lakes, two golf courses and more than 25 miles of paths, and about 27,000 residents today.

Lived

Arrived 1944

Scottsdale years

1944–1973

Known for

Building the Arabian horse and cattle ranch that became McCormick Ranch, and giving the land for the Railroad Park

Decade chapters

1940s, 1950s, 1960s, 1970s

Their name & work today

  • McCormick Ranch
  • McCormick-Stillman Railroad Park
  • The Scottsdale Arabian Horse Show

Why they matter

Drive Scottsdale Road north of Indian Bend and you are crossing the McCormicks’ fence line. For a quarter century Fowler and Anne McCormick ran cattle and Arabian horses on roughly 4,200 acres, about seven square miles, of what is now central Scottsdale. When the ranch sold in 1970, the buyers had one of the largest blank canvases in Arizona, and what they drew on it became the template for north Scottsdale.

The McCormicks shaped the city in three ways that still show. Anne’s Arabians helped make Scottsdale the breed’s winter capital. Their 1967 gift of 100 acres became the city’s most beloved park. And the ranch itself, lakes and all, became McCormick Ranch.

Where to find their mark today

The lakes and paths. The McCormick Ranch lakes and paths: 25-plus miles of public path around seven man-made lakes, some dug from the ranch’s stock ponds.

The Railroad Park. McCormick-Stillman Railroad Park sits on 30 acres of the land they donated, with Anne’s son’s railroad looping it.

The Arabian show. The Scottsdale Arabian Horse Show traces its home-grown years to Anne’s Paradise Park arena.

The resort. The Scottsdale Resort at McCormick Ranch opened on the old ranch in September 1976 as America’s first purpose-built conference resort.

What the records disagree on

The McCormick story is told on many of the city’s pages, and they do not all agree. This profile follows the most detailed account, the lakes-and-paths history: purchase of the 160-acre core in April 1944, a ranch of roughly 4,200 acres (4,236 in some tellings), a 1970 sale to Kaiser-Aetna for about $12 million, and Fowler’s death in 1973. Other pages start the land assembly in 1942 or 1943, put the price at $12.1 million or $12.2 million, and one credits the park gift to Anne alone. A couple of history summaries say the land was sold after Fowler’s death; the dates say otherwise, since the sale came in 1970 and he died three years later.

What is not in dispute is the sequence that matters: annexation by Scottsdale in 1967, the park gift the same year, the sale, and the incorporation of the McCormick Ranch Property Owners’ Association in 1972.

The full story

Fowler McCormick was American aristocracy squared, grandson of Cyrus McCormick, whose reaper built International Harvester, and of John D. Rockefeller. He ran International Harvester as president and then as board chairman. His wife, Anne “Fifi” Potter Stillman McCormick, was the mother of Guy Stillman from an earlier marriage, and she had her own passion: horses.

In the 1940s the couple bought into the desert between the Indian Bend Wash and the McDowell foothills. The core was the 160-acre ranch where the Jolly family had run cattle in the 1920s, bought in April 1944 by the lakes-page account, and over the next decade the McCormicks assembled parcel after parcel around it. Fowler ran cattle. Anne ran Arabians, seriously. She bought her first in 1948, built a breeding program that imported the stallion Naborr in 1963, and created Paradise Park, a 150-acre arena complex where the Valley’s Arabian shows were held from the mid-1950s through 1968. The ponds dug to water her stables are the ancestors of today’s lakes.

By the 1960s the city was growing toward their fences. In 1967 Scottsdale annexed the ranch, and the McCormicks donated 100 acres, then valued at $1 million, with a single condition: it had to become a park for everyone. Anne’s son supplied the railroad; see Guy Stillman for that half of the gift.

Anne died in May 1969. In 1970 the ranch was sold to Kaiser-Aetna for about $12 million, and Fowler died in 1973. The buyers’ plan, built out through the 1970s, clustered housing into villages, organized them around lakes and golf, and laid a path network down before the first house went up. It worked well enough that the rest of north Scottsdale spent the next forty years trying to copy it.

Where to find Fowler & Anne McCormick on this site

The places they founded, built, saved or gave their name to — each with its own guide.

Boards, clubs and payrolls

The organizations Fowler & Anne McCormick helped run, from their profiles.

Fowler & Anne McCormick by the numbers

About 4,200 acres

Ranch size

100 acres, 1967

Park land donated

1948

First Arabian

1970, about $12 million

Ranch sold

A life in Scottsdale: the timeline

  1. 1944

    Fowler and Anne McCormick buy the 160-acre Jolly ranch, in April 1944 by the most detailed account, and begin assembling land around it; other accounts start the assembly in 1942 or 1943.

  2. 1948

    Anne buys her first Arabian horse and begins building a serious breeding program.

  3. 1955

    The first Arabian show is held at the Arizona Biltmore; Anne's Paradise Park arena becomes the shows' home through 1968.

  4. 1963

    Anne imports the stallion Naborr, a sire credited with hundreds of foals.

  5. 1967

    Scottsdale annexes the ranch, and the McCormicks donate 100 acres for a public park, the future Railroad Park.

  6. 1970

    A year after Anne's death, the ranch sells to Kaiser-Aetna for about $12 million, and planning for McCormick Ranch begins.

  7. 1973

    Fowler McCormick dies, as the master-planned community is being built on his old ranch.

Questions people actually ask

Who were the McCormicks of McCormick Ranch?

Fowler McCormick, grandson of Cyrus McCormick and John D. Rockefeller and a president and board chairman of International Harvester, and his wife Anne "Fifi" Potter Stillman McCormick. They ran a cattle and Arabian horse ranch of roughly 4,200 acres in central Scottsdale from the 1940s until 1970.

When was McCormick Ranch sold?

In 1970, to Kaiser-Aetna, for about $12 million (city pages give figures from $12.1 million to $12.2 million). The buyers planned it as one of the country's early master-planned communities.

Who gave the land for McCormick-Stillman Railroad Park?

The McCormicks donated 100 acres to Scottsdale in 1967 on the condition it become a park for everyone. Anne's son Guy Stillman supplied the railroad, and the park opened on October 4, 1975.

What did Anne McCormick have to do with the Arabian Horse Show?

She was one of the Valley's leading Arabian breeders and gave the early shows a home at Paradise Park, her 150-acre arena, from the mid-1950s through 1968. The show now fills WestWorld every February.

Vernacular & LexiconThe Arabian Horse ShowChaparral Lake / EldoradoMcCormick RanchThe WashThe GreenbeltAnnexation and county islandsHayden RoadThe Shea Corridor

Facts checked: September 22, 2026 • Curated by the Scottsdale.tips editors • Dates follow the Scottsdale Historical Society and city records where sources disagree; corrections are welcome.