H. W. (Harland William) Long

Harland William Long (1869–1943), usually published as H. W. Long, was an American physician and medical writer. He is chiefly remembered for Sane Sex Life and Sane Sex Living, a book first published in 1919 and later reissued in other editions.

The book presents sexual health, marriage, and procreation in an educational, plainspoken way that stood out for its time. On the title page, Long is identified as an M.D. and as a captain in the M.R.C., suggesting a medical background shaped in part by wartime service.

Reliable biographical detail about his personal life appears to be scarce in the sources available here, so most of what can be confirmed comes through his published work rather than fuller life records. Even so, that work gives a clear sense of his purpose: to argue for more open, informed discussion of sex and human relationships.