First “Big Apple” citation: May 3, 1921

Gerald Cohen found the first "Big Apple" in a John J. Fitz Gerald horseracing column. From the New York Morning Telegraph, May 3, 1921, page 9, column 3:

J. P. Smith, with Tippity Witchet and others of the L. T. Bauer string, is scheduled to start for "the big apple" to-morrow after a most prosperous Spring campaign at Bowie and Havre de Grace.