19 Nov 1915 obit in the Jacksonville FL TImes Union for Frederick H Wentworth: stated that he was of Waterville, Me., died yesterday afternoon on his houseboat at Orange Park. For a number of years hcame South during the winter on his houseboat, stopping at various points on the St Johns river. The body has been prepared for shipment and will be forwarded to Waterville where the interment will be made.
From FL death record: Frederich H Wentworth died in Orange Park, Duval co FL on 18 Nov 1915 (as per FL death record which also notes he was the son of John F. Wentworth and a single person and buried in N Vasselboro (sic) Maine on 22 Nov.
(these days the town of Orange Park is considered Clay co, may Duval has jurisdiction of the River?)