William C Grizzle, 4th Regiment Mississippi Infantry, Company F
The only records available for William C. Grizzle are his Military Service Records, had his widow, Margaret Elizabeth Ray Grizzle, not remarried she could have applied for a widow's pension.
You can view the headstone for Margaret Elizabeth Ray Grizzle and her second husband, Benjamin Franklin Grammer, at this link.
http://www.findagrave.com/cgi-bin/fg.cgi?page=gr&GSln=Grammer&GSiman=1&GScid=62249&GRid=17638580&
1870 United States Federal Census
Name: Benjamin F Grammar
[Benjamin F. Grammer]
Birth Year: abt 1843
Age in 1870: 27
Birthplace: Mississippi
Home in 1870: Township 12 Range 2, Calhoun County, Mississippi
Race: White
Gender: Male
Post Office: Concord
Household Members: Name / Age
Benjamin F Grammar[Grammer] 27
Margaret Grammar[Grammer] 34
Sarah Griffel[Grizzle] 14
Joseph Griffel[Grizzle] 12
Samuel Griffel[Grizzle] 10
Eliza Grammar[Grammer] 3