Elsie was based on a real cow, selected as the star of the Borden exhibit at the New York World's Fair in 1939. She was displayed on a futuristic automatic milking machine that revolved on a turntable before an awed audience, many of whom had likely never seen an actual cow in the flesh. She became very much a media celebrity, guest starring on radio shows and movie shorts, and getting her portrait painted -- Borden immediately made her their advertising mascot, surrounding her in a long series of ads with a thick-necked bumbling husband named Elmer -- who eventually got his own brand of glue -- and a calf called Beulah, who became spokesbovine for Borden's Hemo, a flavored malted-milk powder product. Elsie's real name was "You'll Do, Lobella," she was seven years old when fame called, and she lived on a farm in Plainsboro, New Jersey. She was killed in a car accident just outside Rahway, NJ, on April 16, 1941 while on her way home from a vaudeville engagement.