"American Marine Engineer June, 1914". National Marine Engineers Beneficial Association of the United States. Retrieved 10 November 2020 – via Haithi Trust.
"American Marine Engineer June, 1914". National Marine Engineers Beneficial Association of the United States. Retrieved 10 November 2020 – via Haithi Trust.
"American Marine Engineer July, 1911". National Marine Engineers Beneficial Association of the United States. Retrieved 9 December 2020 – via Haithi Trust.