He was graduated in architecture at the University of Pennsylvania.
He opened an office to practice in the city (Portland) shortly after 1916. During his rather brief professional career Mr. Parker designed a number of churches in his native city of which St. Mark's Cathedral was the most noted example.
During the mid 1930s he served as Director of the Historic American Buildings Survey in Oregon and Washington, later entered the F.H.A. office in Portland, and at the time of his death was one of the Directors.