Walker's Garage, still standing at 11 N. Davis, was built in 1915 by Irish native James F. Walker (1861-1945), long-time Helena grocer and automobile dealer. The family store was at 428-420 Broadway.

James' wife, Ida Peterson Walker (1858-1944), was one of the first female auto dealers in Montana.

Their son, James Edwin (1891-1984), who went by the name of Ed Walker, went on to become one of Helena's foremost automobile dealers. Per his obituary in the Independent Record, James Edwin was also a talented painter, and a graduate of the Minneapolis School of Art.