At Mullholland Books is an article titled, B. Traven: The Writer Who Wasn’t There, or A Case for His Works. For those that may not recall, B. Traven wrote The Treasure of the Sierra Madre, a good read and an excellent John Huston directed 1948 movie with Humphrey Bogart. The author of the article, Cortright McMeel, believes Traven has been neglected as one of the great adventure novelists of the 20th Century and asks, “Why?” He says,
“Perhaps because the author who wrote such adventure masterpieces as The Treasure of the Sierra Madre, The Death Ship, and General from the Jungle is a mystery himself. He might have been Otto Feige, the son of a Polish potter. He also could have been the anarchist actor Ret Marut, who ended up in a London prison before traveling to Mexico. Two contradictory biographies present each case with compelling fact and argument. Whoever B. Traven was will no doubt always be shrouded in secrecy because that is the way the reclusive author wanted it.”
He then gives a pretty good case for including him with the greats (found at the above link).