There doesn't appear to be easily obtainable information on the internet showing how many married women had driver's licenses in 1950 [and just 1950] compared to married men (the federal government did not collect this information), however an article states "In the 1950s many suburban housewives obtained their licenses in order to fulfil their domestic responsibilities." it also states "Perhaps a quarter of women drove before the second world war and more learned to drive during the war."