In 1929, he joined the American League for Physical Culture, an early promoter of organized nudism in the United States.
In the same year, Huntington, with an associate, the Revd Ilsley Boone, established the Burgoyne Trail Nudist Camp near Otis, Massachusetts.
Huntington had an innate intellectual restlessness which led him to exotic travels and many odd jobs before his editorship at the Christian Work magazine in the early 1920s.
The pamphlet described the eugenics program and made a plea for payments given per child to defray the costs of bearing and raising children, specifically for the clergy.
[7] While in Palestine with the Red Cross Commission in 1916, he wrote to the eugenicist and biologist, Charles Davenport to request copies of the Eugenics Record Office's Record of Family Traits, noting that he was "intensely interested in the practical implications of eugenics” and believed that “we can educate the people here and educate them within a generation” about its importance.
[7] In 1938, Huntington resigned his ministry, declaring himself a humanist and an agnostic; he eventually joined the Philadelphia Ethical Society.
[9] He was survived by two daughters, Alice Allen of Amherst, Mass., Mary of Hightstown, N.J., three sons, Henry S. of Dedham, Mass., Thomas F. of Princeton, N.J. and David C. of Ann Arbor, Mich., 13 grandchildren and five great-grandchildren.