Nancy E. Kirk - Leon, IA

My great grandmother was Nancy E. Kirk b 5/9/1859 in Leon, Decatur Co., Iowa, married James Riley Conquest 4/27/1871 in Decatur, Iowa, b 6/2/1844.The only information I have on her is she had a sister, name unknown, who married J. J. Harmon, 2 brothers - Willis and Riley.
Does this match with any of your ancestors?
Would appreciate any information you will share and I would be glad to share information on descendants.