"During the winter months [in the 1930's], Dad clammed to bring in additional income; sometimes his three sons joined him. After completing the clamming, we would bring the clams home, and start processing them to seel to the Underwood Canning Co. located in Bass Harbor…"" - “The Local Boy: Growing up in Northeast Harbor, Maine in the 1930’s” by Miles Grindle, p. 9 – n.d. [2006] – Privately published – in the collection of the Southwest Harbor Public Library."
“The Underwood Canning Factory at McKinley,” Southwest Harbor Public Library, accessed March 26, 2023, https://swhpl.digitalarchive.us/items/show/6280.Item 6558
