Dairy Barn was a chain of regional convenience stores located on Long Island, New York, with headquarters in Elwood, New York. The stores were distinguished by their drive-through feature, red barn appearance, and little red silo. The peak number of operating Dairy Barn stores was approximately 70. Some original Dairy Barn locations remain open as retail establishments retaining the red barn theme. History In 1939 Edgar Cosman, a Swiss textile manufacturer with business interests in the United States, purchased the Oak Tree Dairy Farm on Long Island. In 1961 Cosman's son, Dieter Cosman, expanded the dairy's wholesale milk business into a chain of retail, drive-through convenience stores named "Dairy Barn." References External links Official website of the defunct Dairy Barn- Not Current Official Website of the modern day The Barn- Current Convenience stores of the United States Companies based in Suffolk County, New York American companies established in 1961 Retail companies established in 1961 1961 establishments in New York (state)