1881 photograph of the outlet to Lower Hadlock Pond. Back reads "This is probably in the outlet to Lower Hadlock, near Wasgatt Cove where there was once a mill."
William Dunbar , “Lower Hadlock Pond Outlet,” Mount Desert Island Historical Society, accessed December 9, 2024, https://mdihs.digitalarchive.us/items/show/19296.Item 19662