[Letum]

I read a very pro-allied bias biography of him a few years ago. Like almost all destroyer captains he opened fire on u-boat crews exiting the conning tower if it was not clear if the u-boat was sinking, but Ive never heard of him throwing survivors back in.....perhaps he did, like I said, the book was very pro-allied as it was published soon after the war. :hmm:

*edit* looking at the records at U-boat.net, there are u-boats lost to F.J.Walker that had entire crews surviving.