My ggg-grandfather, William McClamma, born in North Carolina, married Mary West in 1827 in the Long Beach District of Horry County, South Carolina. William McClamma died on December 7, 1847 in Vera Cruz, Mexico, during military service. Mary West was born in 1800 in the Georgetown District of South Carolina, and died in Madison, Florida, in 1841. I'm looking for William McClamma's siblings and antecedents.
I'm descended from William McClamma through his daughter, Frances Ann (1835-1901), who married John Peter Arnold of Boppard-am-Rhein, Prussia (Germany), on April 12, 1855 in Thomasville, Georgia