Tragically, Apostoli's father was one the workers killed in 1928 while working on a construction detail trying to access the damaged portion of a dam which had failed in Los Angeles County. During his time in the orphanage, Apostoli and the other teens were encouraged by the nuns of the parish to work their disputes out through boxing. Freddie quickly became a master of said technique and showed such promise that the parish arranged for him to receive more formal training. These lessons at a local YMCA gym were partially funded thru the donations the parish had received over the years from his family back East. Apostoli, who won the Pacific Coast Junior Welterweight championship, Golden Gloves Middleweight championship, and the National AAU middleweight championship in 1934, turned pro later that year.