Who's becoming desperate in their attempts to link pieces of artwork together?!
The first piece is by William George and was used to illustrate a story called The Dark Dive in a 1957 issue of Argosy. Click for larger image).
The second piece is also from Argosy, this time a 1962 edition. The artist is Lou Feck. (With thanks to the Today's Inspiration Facebook group).
I've featured this 1961 Fury cover before but I've since found a bigger scan so here it is again. Artist unknown.