Need help with Shelby Co.,Collins/Shafer, 1850's

Need help with some Shelby Co. research.I live in AZ so can't get back there to research this.
My gg-grandmother was, Sarah Ann Stinchcomb.Married Jacob Wittig.After his death she married Daniel Collins in Shelby Co. 1849. Had children by Collins, Johannah, twins Louisa & Levina, & Anna. 1850 census has the Collins family. Don't know whether Collins died or they divorced.Sarah married Daniel Shafer in 1857 in Shelby Co., However She is listed only with her Collins children in the 1860 Shelby Co.,Census.Did Daniel Shafer die or did they divorce. Johanna married Cyrus Gundren in Shelby Co. in 1866, I need someone to search the Shelby Co. cemetery records fordeaths of Collins and Shafer .I also have not found any further records of Louisa & Levina.They were 6 yr. old in the 1860 census.Can anyone help me with this?Janice Stafford