A little more on Francois...
The Jeremiah runs between the dock of the rue Saint -Etienne, in Longueuil, and the Pied-du-Courant Sainte-Marie, in the early 1820s. François Deneau, nicknamed François Jérémie, of LaPrairie, is the owner. In 1820, he sold his boat to Oliver Wait, Abner Bagg and Stanley Bagg. We find him again however, in 1827 - 1828, in command of the Montreal steam boat that shuttled between Longueuil and Montreal
http://marigot.ca/Atlas/Ind_Pag/Cen_Pag/Haut_Pag/19_Pag/Tran.htmhttp://digitool.library.mcgill.ca/webclient/StreamGate?folder_id=0&dvs=1409182514721~749He is mentioned as jeremie/jeremy 4 times on page 71, &once ea page 73, 74 & 114 ( where he is twice once as geremy) So Jeremy is sometimes used as his last name
There is a land petition for a Francois Jeremy 1818
http://www.collectionscanada.gc.ca/databases/lower-canada/001043-110.01-e.php?PHPSESSID=imrujfevvridogtvuc84crcrv2&q1=jerem*
Donation (June 15, 1763 ):
Donation of land situated in the Borgniesse; by Anne-Catherine Bisaillon, widow of Etienne Denau, the village of Prairie de la Magdelaine, to Jacques Denau (major) and Pinsonneau Charlotte, his wife, Marie-Françoise and Bellrose Denau (major), his wife, and Anne vanie Denau (major), his wife, Louis and Marie-Monique Drinville Denau (major), his wife, and Jérémie Denau (major) and Josephus Brousseau, his wife, his children, and sons-in-law. Notary: J. Lalanne (Montreal)
http://www.genealogievanier.ca/affichage_personne.php?id=56&bd=1&l=en