Wood wrote King Comics' early Mandrake stories.
The singular expressions in these panels from the two stories in Mandrake 2—"Suffering Hannah" and "Great suffering Caesar" more so than "Great grief," which you can find from a number of other writers—are the sort I mentioned in my post on Dick Wood's Plastic Man stories at Quality in the Fifties. They don't show up in the first issue, but its "Y-yipes" and "Thunderation," among other things, are interjections Wood uses elsewhere.
Out of my handful of Mandrake issues, I come to writers I can't put names to in issues 4 and 6. (Jerry Siegel, by the way, told the Who’s Who that he wrote one Mandrake.) I would say that Wood wrote the Mandrake back-up in Flash Gordon 1. The inking credits here are Alberto Becattini's from the GCD; I hadn't recognized LeBlanc by myself.
some Dick Wood Mandrake stories
|Sept/66||#1||Menace of the City Jungle||p: Don Heck i: Andre LeBlanc|
|The Flying Phantom||p: Werner Roth i: LeBlanc|
|Nov/66||#2||Specter from Space||a: LeBlanc|
|The Phantom Casino||a: LeBlanc|
a Dick Wood Mandrake in Flash Gordon
|Sept/66||#1||Midnight with Mandrake||p: Heck i: LeBlanc|