The 1871 census shows him at Crookston South Mains, Stow, with his family. Father = William McLean, a gamekeeper, native of Abernethy, Perthshire, Mother = Mary, from England. Oldest child born in Kingussie, Inverness-shire, the others all born in Stow.
The 1881 census shows him with his family at Bowland Lodge, Stow. His father is still working as a gamekeeper. James himself is a groom.