A wealthy young landowner, who married Emily Rowley. Becoming jealous of Colonel Osborne, a friend of Emily's father, he brooded on his inability to compel his wife to dismiss the Colonel and finally went mad.

Character criticism:

"The progress of Louis Trevelyan from an idle, rich, goodlooking, affectionate husband, to the mad invalid whose death was made premature and miserable by his own weakness is in the grand manner." Christopher LaFarge, "I Know He Was Right," Saturday Review of Literature, Jan. 27, 1940,