I do not know where Shirkeyville is. Vital Statistics in Vermillion County, IN, are at the Health Dept., 825 South Mains Street, Clinton, IN. 47842, 317-832-3622. The County Clerk is Martha Padish, Vermillion Co.Clerk, PO Box 10, Clinton, IN. 47966. The Clinton Public Library has a genealogical section and is very helpful. The Riverside Cem. is quite large and the registry is in shambles.
It is on West Main Street along the river I think. You would do well to find the caretaker and ask him if he remembers specific gravesites; this is how I discovered the ones I sought. Fires and losses in moving files has made a registry almost useless unless one wishes to sit and sort through fragments for hours and hours.
Hope this helps.