Zimmerman, George L., and Duff Crerar. 2023. “‘The Gates’ at Our Gates: F.R. (Hamish) Berchem and the Role of the Eastern Based Porte-Class Gate Vessels After Canadian Armed Forces Unification”. The Northern Mariner Le Marin Du Nord 32 (3):315-40. https://doi.org/10.25071/2561-5467.998.