Frank Stubbs played hockey at Harvard for two years, during which time he was coached by his father. He did not graduate from Harvard but continued to play amateur hockey and made the 1936 Olympic team while playing for the aptly-named Boston Olympics. He retired from the Olympics in 1940 due to problems with his legs. Stubbs entered the service at the outbreak of World War II and served with distinction. He fought in Europe as an infantryman, was wounded several times, earning several Purple Hearts, a Bronze Service Arrowhear, a Presidential Unit Badge, a Victory medal, and an ETO Ribbon with the four stars of Normandy, Northern France, the Rhineland, and the Ardennes. After the war he returned to Massachusetts and entered the insurance business.
Some sources list his first name as Franklin but this is incorrect according to state birth records.