Sidonia Lavern Harmon RESOLVED Sidonia, circa 1991 Missing Since 07/09/1991 Missing From Atlanta, Georgia Classification Missing Sex Female Race Black Age 29 years old Distinguishing Characteristics African-American female. Details of Disappearance Harmon disappeared from Atlanta, Georgia on July 9, 1991. Her body was found in a wooded area near Campbellton Road in 1992, but it wasn't identified until 2011. Authorities were unable to determine the cause of death. Investigating Agency - Source Information The Atlanta Journal-Constitution . .