Pelona CALVERT b IL > KS m HELM then BROWN

I'm looking for my grandfather's ancestry.His father was Fred HELM m Margie PILKINGTON.An inquiry on HELM forum suggested connection (unproved): Fred b (1871) IL s/o of Thomas & Pelona/Pellina (CALVERT) HELM.Pellina b (1848) IL d/o George & Amanda CALVERT of Kentucky.

I found my grgf, Freddie HELM as stepson to N W BROWN and Pellina on 1880 Osage, Labette, Kansas Census.Cheryl HELM said Pellina maybe Pelona CALVERT who married Thomas HELM(S) 10 Feb 1867 in Sangamon County, IL.Pellina's other children on KS Census were Mary F(rances) b1867 IL and Thomas b1869 IL.It looks like a good lead to prove.

Do you know when George and Amanda's children were born?Thanks for looking, knoebel@ktc.com