The Rancher's Bride - Ruth Ann Nordin

Sometimes the right person comes at the worst possible time.
Having suffered through the horrors of the Civil War, ex-doctor Thayne Jackson believes he's the worst possible candidate for marriage. He has chosen, instead, to live a quiet and peaceful life raising his orphaned niece. But when a beautiful young woman with a two-year-old boy shows up injured in his barn, everything changes.
Abby Gray has one mission: to get Lloyd back to his father. She must not get distracted by the fact that Thayne is kind and honorable, and she must certainly not dwell on her growing attraction toward him. Once she's healed, she has to leave. She can't stay at this ranch and make a life with him and his niece. There's no "ifs, ands, or buts" about it.
Except there's a ten-year-old matchmaker in their midst who is determined to get the two of them together. And she'll come up with an assortment of creative ways to do it.