The story is that Hogan's Alley was a very "mean street" in NYC, or Chicago, or whereever. When police combat pistol ranges were first set up, with popout/popup targets depicting bad guys, someone called one "Hogan's Alley" and the name stuck for that kind of pistol range.
I am less sure on "The Hide", but I understand some of the old frontiersmen had an area near their homes or ranches where they could hide out if they heard of an Indian raid or an outlaw gang. They might lose their home, but they and their families would survive. (If someone has a better or more accurate explanation, I would not mind at all being corrected.)