Local researcher seeks funds to help find submarine sunk off the coast of Oregon - 2014-07-19
On May 19, 1943 the Astoria-based subchaser crew got a call from USS PC-815. The ship had made contact with at least one enemy submarine. USS PC-815 was a newly commissioned ship, built in Portland, which was under the command of L. Ron Hubbard-the same L. Ron Hubbard who later founded the Church of Scientology.
According to the article, the captain and crew of SC-536 left port in search of the enemy submarine, guided by two navy blimps from the airship squadron. SC-536 crew did not return to port until May 22, 1943.