Gerald Allen Eddy moved from Michigan to Southern California in 1902.
From the 1920s, he worked in the Los Angeles area as an artist and commercial cartographer.
Eddy produced a number of pictorial and other maps of the western part of the United States. His earliest work was "Pushing Hun out of Franc eand Belgium" (1918). He produced several other war related maps during WWII, but is best known for his tourist and pictorial maps of California, Nevada and Arizona, including his "The Heart of Arizona" in 1926 and Boulder Dam map of 1931 and his iconic series of maps of Lake Tahoe.