SS Polar Chief (English Wikipedia)

LLoyd's Register, 1897. Lloyd's Register of British and Foreign Shipping. Vol. I–Steamers. London: Lloyd's Register of Shipping. 1897. Supplement, M – via Internet Archive.
LLoyd's Register, 1898. Lloyd's Register of British and Foreign Shipping. Vol. I–Steamers. London: Lloyd's Register of Shipping. 1898. MON – via Internet Archive.
LLoyd's Register, 1900. Lloyd's Register of British and Foreign Shipping. Vol. I–Steamers. London: Lloyd's Register of Shipping. 1900. MON – via Internet Archive.
LLoyd's Register, 1901. Lloyd's Register of British and Foreign Shipping. Vol. I–Steamers. London: Lloyd's Register of Shipping. 1901. MON – via Internet Archive.
LLoyd's Register, 1911. Lloyd's Register of British and Foreign Shipping. Vol. I–Steamers. London: Lloyd's Register of Shipping. 1911. MON – via Internet Archive.
LLoyd's Register, 1918. Lloyd's Register of Shipping. Vol. I–Steamers. London: Lloyd's Register of Shipping. 1918. CRA–CRE – via Internet Archive.
LLoyd's Register, 1922. Lloyd's Register of Shipping. Vol. I–Steamers. London: Lloyd's Register of Shipping. 1922. CRE – via Internet Archive.
LLoyd's Register, 1924. Lloyd's Register of Shipping. Vol. II–Steamers and Motor Vessels. London: Lloyd's Register of Shipping. 1924. Supplement, R – via Internet Archive.
LLoyd's Register, 1925. Lloyd's Register of Shipping. Vol. II–Steamers and Motorships. London: Lloyd's Register of Shipping. 1925. REX–RHI – via Internet Archive.
LLoyd's Register, 1928. Lloyd's Register of Shipping. Vol. II–Steamers and Motorships. London: Lloyd's Register of Shipping. 1928. Supplement, A – via Internet Archive.
LLoyd's Register, 1929. Lloyd's Register of Shipping. Vol. II–Steamers and Motorships. London: Lloyd's Register of Shipping. 1929. ANG – via Internet Archive.
LLoyd's Register, 1938. Lloyd's Register of Shipping. Vol. II–Steamers and Motorships. London: Lloyd's Register of Shipping. 1938. POI–POL – via Internet Archive.
LLoyd's Register, 1948. "Steamers and Motorships". Lloyd's Register of Shipping. London: Lloyd's Register of Shipping. 1948. PO–POL – via Internet Archive.

atlantictransportline.us

"S.S. Montcalm". Aberdeen City Council. Archived from the original on 6 June 2010. Retrieved 29 March 2010.

crewlist.org.uk

Mercantile Navy List, 1898. Mercantile Navy List. 1898. p. 241. Retrieved 6 June 2022 – via Crew List Index Project.
Mercantile Navy List, 1917. Mercantile Navy List. 1917. p. 137. Retrieved 6 June 2022 – via Crew List Index Project.
Mercantile Navy List, 1930. Mercantile Navy List. 1930. p. 428. Retrieved 6 June 2022 – via Crew List Index Project.
Mercantile Navy List, 1933. Mercantile Navy List. 1933. p. 430. Retrieved 6 June 2022 – via Crew List Index Project.
Mercantile Navy List, 1947. Mercantile Navy List. 1947. p. 100. Retrieved 6 June 2022 – via Crew List Index Project.

historicalrfa.org

"RFA Crenella". Royal Fleet Auxiliary Historical Society. Retrieved 30 March 2010.
"RFA Crenella RFA Crenella". Royal Fleet Auxiliary Historical Society. Retrieved 6 June 2022.

historycentral.com

"Cushing II DD-55". History Central. Retrieved 30 March 2010.

southampton.gov.uk

plimsoll.southampton.gov.uk

LLoyd's Register, 1931. Lloyd's Register of Shipping (PDF). Vol. II–Steamers & Motorships. Lloyd's Register of Shipping. 1931. POL. Retrieved 30 March 2010 – via Southampton City Council.
LLoyd's Register, 1935. Lloyd's Register of Shipping (PDF). Vol. II–Steamers & Motorships. Lloyd's Register of Shipping. 1935. POI–POL. Retrieved 30 March 2010 – via Southampton City Council.
LLoyd's Register, 1937. Lloyd's Register of Shipping (PDF). Vol. II–Steamers & Motorships. Lloyd's Register of Shipping. 1937. POK–POL. Retrieved 6 June 2022 – via Southampton City Council.
LLoyd's Register, 1940. Lloyd's Register of Shipping (PDF). Vol. II–Steamers & Motorships. Lloyd's Register of Shipping. 1940. POI–POL. Retrieved 30 March 2010 – via Southampton City Council.
LLoyd's Register, 1942. Lloyd's Register of Shipping (PDF). Vol. II–Steamers & Motorships. Lloyd's Register of Shipping. 1942. Supplement, E. Retrieved 30 March 2010 – via Southampton City Council.

teesbuiltships.co.uk

"Montrose". Tees Built Ships. Shipping and Shipbuilding Research Trust. Retrieved 6 June 2022.

theshipslist.com

Swiggum, Susan; Kohli, Marjorie (25 September 2008). "Ship Descriptions – MI to MU". TheShipsList. Retrieved 6 June 2022.

tynebuiltships.co.uk

"Montcalm". Tyne Built Ships. Shipping and Shipbuilding Research Trust. Retrieved 6 June 2022.
"Monteagle". Tyne Built Ships. Shipping and Shipbuilding Research Trust. Retrieved 6 June 2022.
"Montfort". Tyne Built Ships. Shipping and Shipbuilding Research Trust. Retrieved 6 June 2022.

uboat.net

Helgason, Guðmundur. "Crenella". uboat.net. Retrieved 30 March 2010.

warsailors.com

"Convoy HX 156". Warsailors. Retrieved 30 March 2010.
"HX 251 through HX 300". Warsailors. Retrieved 30 March 2010.

web.archive.org

"S.S. Montcalm". Aberdeen City Council. Archived from the original on 6 June 2010. Retrieved 29 March 2010.