It's Julius Marx - aka: "Groucho". I believe the other fellow is his brother, Leonard (Chico).
Boy you're smart. Yea, NOW I can see it by the facial expression but would have never guessed Groucho. I do believe you're right.
TIS
"Mankind must put an end to war before war puts an end to mankind. War will exist until that distant day when the conscientious objector enjoys the same reputation and prestige that the warrior does today." JFK