Bails indicates "Everett Raymond" is a pseudonym for Everett Raymond Kinstler, so it is possible "E. Raymond" refers to him.
This indexer is correct. The bold lines and, in particular, the shadow to the bottom side of the nose in full face are characteristic of Kinstler's work throughout his career.
Writer credit determined by textual analysis by Lou Mougin.
By comparison with the first, signed, story inks here are also by Kinstler.
First appearance of The Grim Reaper. He appears next in WONDER COMICS #1. Origin told in WONDER COMICS #2.
No dialogue.
His stories usually are military; here, he's at home.