We have several different death record indexes and death records on line:
Clinton County Vital Records
Death Record Book One - Dec 1877 - Jun 1903 - Index by Surname, Page, and Record Number
State Database of Deaths from Dec 1877 to Dec 1915 - Index by Surname, Death Date, City, Age, Sex, Vol/Page, and Cert #
State Database of Deaths from Jan 1916 to Dec 1950 - Index by Surname, Sex/Color, Age, Cert #, Death Date, City, and Date filed
U.S. Federal Census Mortality Schedules
1850 - Deaths from 1 Jun 1849 to 31 May 1850
1860 - Deaths from 1 Jun 1859 to 31 May 1860
1870 - None available
1880 - Deaths from 1 Jun 1879 to 31 May 1880
Church Records
Please see our Church Index, we have death/burial records from several churches.