 On October 25 , 1788 Jones ' team began their survey of Grimsby Township ; it was completed November 13 , 1788 . Saltfleet Township was surveyed from November 14 , 1788 to December 25 , 1788 and Binbrook Township was surveyed from December 24 , 1788 until February 12 , 1789 . All of these townships were surveyed using the Front and Rear system , except Binbrook , which was surveyed with the Single Front system . During this time , Frey had assigned two other surveyors to lead surveys in the Nassau district . Daniel Hazen and Jesse Pawling both led teams , but neither group was as busy as Jones ' group . Hazen 's group surveyed only four townships , and incompletely , and Pawling 's three , also incompletely . In November 1789 Jones began acting as the deputy surveyor in Nassau District as Frey had left Upper Canada , and he officially received the position in early 1791 on the order of Deputy Surveyor General John Collins . 
