Centennial Swan — Sally Garrett

Historical novel set in territorial Montana 1886-1886. Hero is Con Adler (half English half Shoshoni). Heroine is Bethea Kingston, married with six children and a seventh on the way. She's marooned in the wilderness when her husband abandons them. Racism and bigotry in a rural western community causes trouble and life threatening troubles until justice, love, and commitment prevails.