Is Silivent or Coffey a Seminole surname? I am looking for my great aunt who married Charles Lee Silivent & lived in the Dallas, TX area until 1930. After that time I find no evidence of them anywhere nor their children with the exception of one daughter named Oleta Silivent who married Charles Francis Coffey & had a daughter in 1937 in Dallas, TX. After that I cannot find her or her family either. Any help would be appreciated.