St. James Farm in Warrenville in DuPage County, Illinois — The American Midwest (Great Lakes)
Dairy Operations
Dairy Barn
During the 1930s, the McCormicks built onto the estate's original dairy barn and tripled its size. The barn's main floor had roomy, private stalls and was described at the time as an "immaculate," well-ventilated building. Down its center aisle which was lined with milking stations, over 60 cows were milked twice a day. An upper hayloft stored hay for the cows. An east extension on the bam, since removed, housed calving and sickly cows.
By 1941, the McCormicks had over 100 cattle housed in the dairy barn and nearby outbuildings, including the stable. Many of these buildings were later renovated or built to accommodate the growing herd.
"Field Days"
The dairy barn took center stage for annual "Field Days," one-day educational forums for the Northern Illinois Guernsey Breeders Association. During these forums, the McCormicks freely shared their knowledge with hundreds of farmers, which resulted in increased production and quality throughout the dairy industry.
Outbuildings
Many of the outbuildings accommodated keeping and breeding Guernseys.
Milk House
The farm's milk house, a trademark of the early 20th-century dairy farm, was filled with refrigerators to cool large cans of milk. Sanitation laws required milk to be separated from a barn, which prevented contamination. St. James Farm sold its milk to Bowman Dairy, which then provided the fresh milk by rail to Chicago.
Breeding Barn
Guernseys were bred in a breeding barn.
Calf Shed
The calf shed, originally a long structure that connected to the dairy barn, housed calves. The truck shed is all that remains of the former structure.
Bull Barn
One of two structures, a bull barn housed bulls separate from the females and was located near the dairy barn.
Erected by Forest Preserve District of DuPage County.
Topics. This historical marker is listed in these topic lists: Agriculture • Animals • Architecture • Railroads & Streetcars. A significant historical year for this entry is 1926.
Location. 41° 50.047′ N, 88° 9.698′ W. Marker is in Warrenville, Illinois, in DuPage County. It is in St. James Farm. It is on Winfield Road (at milepost 13) near Butterfield Road (Illinois Route 56). The marker is in St. James Farm Forest Preserve, near the dairy barns referenced in the text. Touch for map. Marker is at or near this postal address: 2S541 Winfield Road, Warrenville IL 60555, United States of America. Touch for directions.
Regionally, this marker is in Greater Chicago. It is also in the American Midwest and on the Great Lakes. Globally, it is in North America, the Western Hemisphere, the Western World, and the Anglosphere. Historically, it finds itself in what was once the territory of the Mississippian Culture and also the Northwest Territory.
Other nearby markers. At least 8 other markers are within one mile of this marker, measured as the crow flies: A Love for Horses (within shouting distance of this marker); William Deering and Company Factory Doorway (within shouting distance of this marker); Chamossaire Statue (within shouting distance of this marker); Milwaukee Works War Memorial (within shouting distance of this marker); George Washington Elm (approx. Ύ mile away); It Kame From the North (approx. 0.8 miles away); Recipe for a River (approx. one mile away); A Dam Struggle (approx. one mile away). Touch for a list and map of all markers in Warrenville.
Also see . . .
1. St. James Farm and McCormicks Prized Guernseys. A reprint of a 1954 article in the Guernsey Breeders Journal.
Excerpt: "The name of Mr. and Mrs. Chauncey McCormick and St. James Farm are synonymous to the Guernsey breeders of Illinois. The great St. James Farm, through the influence and the interest of Mr. and Mrs. Chauncey McCormick, produced the great cow St. James Philosophers Dipper, grand champion at the National Dairy Show, at Memphis, in 1941, and junior champion at the National in 1940. Through the same interest and influence, also from St. James Farm came the immortal cow, remembered as St. James Philosophers Barbee, grand champion at the Dairy Cattle Congress, at Waterloo, in 1941, and again in 1942. Barbee is also the National Class Leader for production, with 1,055 lbs. butter fat at 11 years of age."(Submitted on November 20, 2025, by Sean P. Flynn of Oak Park, Illinois.)
2. History of Guernsey Cattle. An article on The Cattle Site about the Guernsey cow, which originated in the English Channel island of Guernsey.
Excerpt: "The Guernsey breed built its reputation for the production of quality milk from grass during the 19th and early 20th centuries and then exported cattle to found significant populations in several other countries. From an original mixed foundation, island breeders concentrated on improving the stock by eliminating faults and making their cattle more homogeneous. All this was based mainly on visual appearance supplemented by some milk recording."(Submitted on November 20, 2025, by Sean P. Flynn of Oak Park, Illinois.)
Credits. This page was last revised on November 20, 2025. It was originally submitted on November 20, 2025, by Sean P. Flynn of Oak Park, Illinois. This page has been viewed 69 times since then and 28 times this year. Photos: 1, 2, 3. submitted on November 20, 2025, by Sean P. Flynn of Oak Park, Illinois.


