Being bribed to dump Franklin Pierce overboard

Frederick T. McGill, who was an island legend in his own right, was the Star Island historian for a number of years.  He started a notebook to record things that he and later Vaughn Curators heard over the years.  In these pages I found the following story recorded August 16, 1981:

Gertrude Palench (spelling?) of the UCC Laity Weekend tells me that her great grandfather was Captain Jonathan Godfrey, Isles of Shoals lighthouse keeper and the one for whom Godfrey’s Ledge is named.  She has documentary evidence that Capt. Jonathan rowed Franklin Pierce during Pierce’s viist to the Shoals before he became President, and Godfrey was offered $50 if he would dump the Democrat overboard.  He did not accept the bribe.