Need help identifying brand of bike

[Driftless]

I have a customer trying to identify what brand of bike he has. The bike is from the late 30s to early 40s. The gentleman who bought it left it at his cousins before going into the Navy. The person who purchased the bike was on the Arizona during the Pearl harbor attack and did not survive. The only thing identifying thing is the front post badge. Any help would be appreciated. Thankas

 

[Mr. Beanz]

Sorry can't help but I searched.

Will be interesting to see the answer if anyone finds it.

 

[Froze]

It could be a Royce Union or a Royal Crown, but that badge is so badly worn, plus there were so many badges with a similar pattern I could be just smacking my gums on that one, but I'm leaning toward it being a Royal Crown.