In 1937, John Steinbeck’s “Of Mice and Men” hit the bookshelves, Fred Astaire crooned “They Can’t Take That Away From Me,” milk cost 14 cents a gallon, and 9 cents would buy a loaf of bread. And on June 9, Emil and Mary Larsen wed. Seventy-five years later, Emil, 99, still smiles when he recalls the day he first saw Mary.