I used to visit Sunshine Comics in Miami as a kid. The owener, Joel, didn't have a wife that I knew of, but his sister and mother worked there with him. His mother, who must have been in her mid-60s at the time, would sell me silver age Batmans and Detectives. I remember pulling some more recent Detectives that had cool covers and bringing them to her. She pulled out the price guide and priced them and they were MUCH more expensive than the late 10 cent and early 12 cent issues I was buying. I asked her why and she explained that those were the Marshall Rogers issues. Never heard of him until then, but I always think of Mrs. Fischer when I see those Joker Fish stories.