Query: CALDWELL of Hendricks County

I am looking for the death records from Hendricks County from 1860 to 1890. My husbands grandfathers are buried in Crown Point cemetary and are named James CALDWELL d. 1875 and Richard G. CALDWELL d.1862. Richards wife Editha died in 1866 and three of their children Rebecca, William H. And Oliver all died 1867,1867, and 1874 respectively. Richard was only 41,Edith 39 and the children 18,17 and 20. Rebecca and William died 5 days apart. I am wondering if they died from the Cholera epidemics that swept through Indiana in the mid 1800's. James, Richards father outlived them all and was 76 when he passed. How sad he had to watch his family die. I am hoping the death records will give cause of death. Thank you for any help Jennifer Caldwell 316 pepper Creek Drive, Valparaiso, IN 46385 Jenniferlynnm@comcast.net