Miller in Yale's Beinecke Library
2. Henry Miller with friends at Sommiers, July 24, 1959.
3. Henry Miller at his desk at Big Sur, March 18, 1945.
The photograph of Miller at Big Sur in 1945 contains its own description, handwritten on the back by Miller: "This is a poor snapshot of your humble Zen disciple at work in his Sanctum at Big Sur. Looks like a classroom, no? Henry Miller 3/18/45." This photo was donated to Yale in 1951 from "Henry (sic) Peyre." Henri Peyre is referenced by Miller in his Books in My Life, p.19: he was a professor of the French Department at Yale. He was an acquaintance of Wallace Fowlie, who'd written to Miller on December 28, 1943 to mention that Peyre was an "excellent critic" who "thinks highly of your books ... He may write to you."  A friendship was to later follow; Peyre proved to be someone with whom Miller could share his new enthusiasm for Rimbaud.
Miller had moved to Big Sur in 1944. He may have been working on Sexus in this photo (which he'd complete later this year) or perhaps he was hammering out a (later aborted) translation of Rimbaud's Season in Hell. His daughter Valentine had been conceived about a month before this photo. 
The above photo has been cropped from the original, which may be viewed in full and at a large scale so that you can admire Henry's 1940s California decor. Love those curtains, Henry.
__________________________________________________ Letters of Henry Miller and Wallace Fowlie, 1943-1972; p.27.  See Miller's own biographical timeline posted at the Big Sur Memorial Library website.