DeCrow was elected president of the National Organization for Women from 1974 to 1977, during which time she led campaigns to ensure that collegiate sports would be included under the scope of Title IX, pressured NASA to recruit women as astronauts, oversaw the opening of a new NOW Action Center in Washington, D.C. and the establishment of NOW's National Task Force on Battered Women/Household Violence, and participated in a tour of over 80 public debates with antifeminist activist Phyllis Schlafly over the Equal Rights Amendment.
DeCrow blev valgt til præsident for National Organization for Women fra 1974 til 1977, i hvilken periode hun ledede kampagner for at sikre, at kollegiale sportsgrene ville blive omfattet af Title IX, pressede NASA til at rekruttere kvinder som astronauter, overvåge åbningen af et nyt NOW Action Center i Washington DC og oprettelsen af NOW's National Task Force om voldsramte kvinder/vold i hjemmet og deltog i en turne på over 80 offentlige debatter med den antifeministisk aktivist Phyllis Schlafly om Equal Rights Amendment.