this is what i have so far....

Latheron?

William Sutherland married Christina m.s Cormack 21/12/1877
they had a son peter(b.17/3/1883) who married Margaret(b.10/8/1884 d.16/3/1918) m.s Campbell(illegitimate)

Christina's parents where Peter Cormack & Isabella m.s McKay

any more information would be much appreciated