Complex sentence: When the survivors finally reach their California destination, the women refuse to enter town where their perspective grooms are waiting-unitl Buck can bring them decent clothing and "pretty things" so that the brides can look presentable.
Split into simpler sentences: When the survivors finally reach their California destination, the women balk at entering town where their perspective grooms are waiting. They will go no farther-until Buck can bring them decent clothing and "pretty things" so that the brides can look presentable.