The mysterious story of Martin Norgren Davidsen has been completed as we were able to locate record of his death this past year. Martin passed away on July 4th 1916 at City Hospital, 88 Lambert Street in Boston, Middlesex, Massachusetts, USA. His death was listed as a suicide caused by Poisoning with Illuminating Gas. Martin was buried at Fairview Cemetery on July 9th.
My apologies to his descendants for this unfortunate discovery. Thank you to everyone who assisted.