Harold Mortimer-Lamb (1872 - 1970) was an Anglo-Canadian mining engineer, journalist, photographer, and artist perhaps best known for championing the Group of Seven in the 1920s.

In 1942, Harold Mortimer-Lamb married Vera Weatherbie, a muse of Frederick Varley's and a school friend of Molly's.

[5] Mortimer-Lamb was appointed Secretary of the Canadian Mining Institute in the early 1900s which required him to relocate to Montreal.

While living in Montreal, he had the opportunity to meet, and become acquainted with, many of the leading artists of the day including Homer Watson, William Brymner, Maurice Cullen, Laura Muntz Lyall and later, members of the Group of Seven, in particular A.Y.

Around 1920, he left his position at the Mining Institute in Montreal to take up the post of Secretary-Treasurer of the BC Division in Vancouver.

[6] As a photographer, Mortimer-Lamb's work was widely exhibited and he was considered a prominent member of the Pictorialist movement.

[7] Mortimer-Lamb was eventually elected an Honorary Fellow of the Royal Photographic Society and a member of The Linked Ring.

[6] Additionally, he wrote art criticism as well as about his experiments with photographic technique for international photography journals and for the Pictorialist publications Photograms of the Year and the Studio.