John Jeffries a letter he dropped from the balloon during his historic flight, considered the oldest piece of airmail in existence. He fled to Halifax, Nova Scotia in 1776 and later to England 1779, and was employed by the Crown during this time. In 1785, Jeffries and Jean-Pierre Blanchard crossed the English Channel in a balloon, becoming the first human beings to cross the Channel by air. Jeffries lived in England from 1779 to 1790. Despite being named in the Massachusetts Banishment Act, he returned to private practice in Boston, staying there until his death in 1819. His son John Jeffries II
Gatineau Hot Air Balloon Festival festival's first volunteer and a tree was also planted on site in her honor in conjunction of the festival's 20th Anniversary which also honored the founder of the festival. After that event, he never piloted a hot-air balloon and left his general manager spot of the Festival afterwards - some speculations were that the new city of Gatineau administration of Yves Ducharme tried to force him out of the job by offering a spot for the new city as chief of communications. He was handled that position for a few months during rehabilitation, but the position was later removed and