but it's pretty hard to say either way and I'm just guessing based on how these things seem to go.

Also based on the civil rights changes in the '50s and '60s and how the general population wasn't always accepting of what the courts or laws mandated. But, I could be wrong.
I think if you asked the average man back then if women should be able to vote he'd say no, or he'd say something non-committal about how he didn't really mind either way but never really thought about it, or he'd say sure I think they should. Even if the percentages of those men were even, that's still 2/3 that are either against it or wouldn't actively try to make it happen.
I don't think that's out of maliciousness or anything, just human nature. When we have things we want and our lives are generally going along well we typically don't think about much outside of our own world.
-Craig