Looking for information on John Wallace Purdom and Sarah Cathrine(Bolles)Purdom

This seems to be the John Wallace Purdom who was born in 1857 in Kentucky. He was married to Sarah Catherine (Katie) Boyles in about 1878. I might be wrong on the spelling of her name. They are listed in the 1880 and 1900 censuses in Marion County, Arkansas. He was the son of Thomas Purdom and Eliza Jane Pond. They lived in the Sugarloaf Township in 1900. His brother Mark Purdom is my great-grandfather.
Thomas Purdom

I am a granddaughter of John Henry and Eliza Emily (yocham) Purdom. My mother was Eula Mae (Purdom) Clark. She passed away September 2, 2003. My Aunt Lula (Purdom) Weaver lives in Yellville, Ar. My Aunt Belle who is almost ninty-two lives in Wahington state. I thought you might want to hear from a near relative.