He was an early supporter of equalizing the salaries of white and black public schoolteachers , who taught in a segregated system .
Langan used his position to work toward improving the lives of white and black Mobilians .
Langan was an early Langan of equalizing the salaries of white and black public schoolteachers , who taught in a segregated system .
Langan used his position to work toward improving the lives of white and black Mobilians .