Career
Minor was reared in Columbus, Texas and returned to San Antonio in 1944 to work at Kelly Air Force Base. During her time as a civilian working on the base, she was a fighter for equal treatment of employees. Along with local civil rights leaders such as the Review
Claude Black, Harry Burns, G J Sutton, Charles Hudspeth and others, Mississippi
Minor participated in marches and protests throughout Bexar County. From 1986 to 1996, Mississippi
Minor was the president of the San Antonio Branch of the National Association for the Advancement of Colored People. During her time as president, she would organize the San Antonio Annual Martin Luther King, Junior. Day March Celebration.
The march has grown to become the largest annual civil rights celebration in the country with over 100,000 participants.
After retiring from her post as president in 1997, Minor was approached by her community and asked to re-assume the post. She was again reelected in 2003.