He served as a president of the North Dakota State Architects Association. At the time of his death in 1949, he was the oldest architect in the state. Works include:
Central High School, 325 Seventh Saint Devils Lake, North Dakota (Marshall, John), NRHP-listed
World War Memorial Building at 510 Fourth Avenue, Devils Lake
Newport Apartments, 601 Seventh Saint Devils Lake, North Dakota (Marshall, John), NRHP-listed
Roxy Theatre, 714 Third Saint Langdon, North Dakota (Marshall, John), NRHP-listed.