Francis was from the Island of Guernsey, France. 
French King Louis XIV's government confiscated the wealthy Francis's estates because Francis was a Protestant (Huegenot). Tradition claims that consequently Francis changed his last name from Gerneaux to Gano. 
1685 -- tradition claims that Francis escaped from France "to England by being nailed up in a hogsheads, as freight, on a boat across the [English] channel." 
1686 -- Francis with at least his daughter Mary and his son Jeremiah emigrated from England to New York. . They settled at New Rochelle, Westchester county, New York. 
1723 -- Francis Gerneaux aka Gano died at New Rochelle, Westchester County, New York at the age of 103 years. 
Denman Family History: From the Earliest Authentic Records Down to the Present Time. Compiled by Mrs. Harriet N. Harris. 1913. The Glendale News, Glendale, California. Reprinted by Nabu.
Immigrant Ancestors -- A List of 2,500 Immigrants to America before 1750. Extracted from Volume VII Compendium of American Genealogy. Chicago, 1942. Edited by Frederick Adams Virkus. Genealogical Publishing Company, Baltimore, Maryland. 1970. Francis Gano (Gerneaux), page 32.