The birthdate is based on his death certificate. The information was provided by his oldest daughter, who was 15 at the time. Unfortunately, the year is not consistant thourghout the documents I've been able to find. His marriage record indicates that he was born abt 1862 and the 1900 census & tombstone transcription indicate 1860. However, 1910 census agrees with the death certificate.
As for location, the family believed he was born there. Isle of Man is indicated on the death certifcate, 1900 census & 1920 census data for his children.