He also wrote numerous articles about trapshooting. He was a regular competitor representing the Navy in trapshooting competitions, particularly against the Army. Among his hobbies are woodworking, motorcycling, quilting, genealogy, horticulture, astronomy, trapshooting, and hunting. Bogardus is in the National Trapshooting Hall of Fame. A search of his house found a box of Eley No 7 trapshooting cartridges. His Tonkaway Ranch is especially known for quail hunting and trapshooting. He organized the first national trapshooting organization, a forerunner to today's Amateur Trapshooting Association (ATA). The ATA was founded in 1900 and as the American Trapshooting Association. Trapshooting outside of official events follows ATA rules and norms to widely varying degrees. Most official events are governed by the Amateur Trapshooting Association or ATA and its rules. The Amateur Trapshooting Association launched its youth program, AIM in October 2008. Whitman's hobbies have included mountain biking, playing football, and trapshooting.