Robertson, Robert Potter(Bob or Potter)

We're look for information on my husband'sfather, ROBERT POTTER ROBERTSON (Bob or Potter) he was supposedly to have run a rooming house with a Mr. SISNEY around the turn of the century or earlier.He married in Geary, Ok 1st. He is believed to have a son named TOMMY, His 2nd marriage was to a CORA ANN HORN from Hughes County, Holdenville, Ok. They had 2 sons.
ROBERTS POTTER ROBERTSON has 8 brothers and sisters. His father's name was JULIUS and mother was MARILDA, both were born in Manchester, Clay Co. Ky.Bob and 1 sis, NORAH were born in Gallatin, Mo and the last daughter known was born in Linn Co, Ks.
If you have any info on this line please let me know, I will exchange any that I have.