Gerstenberger, Donna, Richard Hugo, Boise State University Press, 1983.

Gerstenberger's pamphlet on Hugo's writing is a
good introductory resource for students who want a
quick overview of Hugo's poetry. Gerstenberger also
includes a useful bibliography of secondary sources.

Hugo, Richard, The Real West Marginal Way: A Poet's Autobiography, W. W. Norton, 1992.

The Real West Marginal Way: A Poet's Autobiography
is not a conventional autobiography but a collection
of essays that Hugo wrote over his life,
addressing topics such as his trip to Italy, how he
never met Eudora Welty, and his history of drinking
and self-loathing.

Morris, Patrick, Anaconda Montana: Copper Smelting Boom Town on the Western Frontier, Swann Publishing, 1997.

Hugo loved to visit and write about the small, often
abandoned towns of rural Montana. Morris's social
history of Anaconda, Montana chronicles the founding
and growth of this smelting town in Montana's
Deer Lodge Valley. Among other...