In 1966, Crabbe passed an exam to become a New York City stockbroker with the Wall Street firm of Lieberbaum, Richter & Co. He led the annual Red Cross swim sessions at the Durland Scout Center in Rye, New York, and in 1969 continued his association with the Concord Hotel as Director of Water Activities. He also had two camps in the Adirondacks: a summer camp for young boys and a co-educational water camp for teenagers. He kept up with his work for Cascade Pools. In 1970, he wrote "Energistics", an exercise book for old people.