OK, I think with your help I have these two sorted. I rec'd the missing 4117 cert yesterday and it is him, born on 1-6-1892 to Thomas and Mary Skully CASEY. I'll take that mis-spelling.
So now I do have two Birth certs for these brothers as well as a Draft Card for Frank.
The Death Cert you referenced is for Thomas; I do have that already; so that explains why no WWII Draft Card for him.
As far as the other Trees, there are very little or no supporting documents.
Thank you so much for helping me with this - I really appreciate it.