Mississippi Snopes:
1948 - 11 - Sybil year is a guess
Mississippi Snopes:
1949 - 10 - Sybil HS junior
Mississippi Snopes:
1950 - 10a - Sybil
Mississippi Snopes:
1950 - 11 - Sybil senior photo date guess
Mississippi Snopes:
1950 - 11 - Sybil year is a guess