Our records passed down verbally by my husband's father, reflect that Big Donald had a son by Ann Murray named Donald Hugh Montgomery (nickname "Little Donald"), who married Annie Nancy Campbell. They had a son named James Townsend Montgomery born in 1875. JTM married Helen Ruth Lawrie and they had three children: Paul Laurie, Marion Ruth, and William Campbell Montgomery. WCM married Joan Temple MacVickar in 1945 and had one son James Campbell Montgomery (b 8/4/1951). I am married to James Campbell Montgomery. If anyone can verify that Big Donald had a son Donald Hugh, we can hook up our Geni records.