He was an exponent of environmental education and was instrumental in the development of the national park and nature reserve system in New South Wales in the 1950s and 1960s.
During the 1940s and 1950s Strom was a teacher at the Enmore Activity School and the Broken Bay National Fitness Camp.
In 1948 he became a member of the NSW Fauna Protection Panel, the forerunner of the National Parks and Wildlife Service, then in 1958 was appointed Chief Guardian of Fauna, working to expand the number of nature reserves and national parks in the state.
In 2016, a group of 'Strom followers' located electronic versions of the drafts and prepared them as an e-book for public distribution.
[2] The Strom followers also located a hard copy manuscript of a book Allen Strom wrote in 1980 about nature conservation in New South Wales in the 1950s and 1960s, particularly his experiences as a Fauna Protection Panel member and as Chief Guardian of Fauna.