[4] He was the younger brother of Otis Merrill Moore, proprietor of the Hoquiam Record and Daily Washingtonian.
The Portland Art Museum has his photograph of Susan Whalley Allison in their collection.
[6] In 1897, Moore was contracted to paint a portrait of Oregon governor William Paine Lord to hang in the Oregon State Capitol in Salem.
[9] In addition to these portraits, he also painted a portrait of Samuel Benn, a pioneer of Aberdeen, Washington,[3] and made a posthumous painting of Seattle newspaper editor Col. Alden J.
[citation needed] He worked for Frank G. Abell before eventually taking over his photographic studio.