Yes, I don't know how accepted it was because its hard to get the sort of anecdotal evidence you'd want from the poorest sections of society, but it certainly happened, and since bigamy was illegal, best to live together until the original spouse died and then you could marry. I've also found instances where, with second marriages, they seem to take a while to get around to it. Mormons may have had a different attitude, because obviously they are a particular group - but I haven't looked at Mormons much at all.

I think for it to be accepted by the community there would have to be reason to do it (e.g. your spouse had already left you, or was drunk/incapable/abusive) - if not, you might instead find yourself the victim of a community 'skimmington' which seems to have happened to stop or punish abusive husbands, and spouses who just went off with somebody new (especially if there were children, they also took money/items, or left the other spouse unable to support themselves). So, there was definitely some ground level community disapproval of certain kinds of behaviour in that respect, too.