 Following his baseball career, Dapper settled in Fallbrook, California, buying a ranch alongside former Dodgers teammate Duke Snider where they made a substantial living farming avocados and lemons on 60 acres.Dapper became president of the California Avocado Growers Council.Dapper and his wife Stanna (), who had been high school classmates and married in 1944, raised three sons—all catchers—and a daughter in Fallbrook.