John Johnson -- surveyor, millwright, master builder, civil engineer -- was born in Canterbury, New Hampshire on December 2, 1771. He moved to north-western Vermont in 1790 and eventually settled in Essex, where he helped build a dam and several mills at Hubbells Falls on the Winooski River. Johnson's practical versatility soon made him the most prominent surveyor and engineer in northern Vermont and Lower Canada, and the growing demand for his services led him to move to Burlington in 1809. He was named Surveyor General of Vermont in 1813, and four years later received the appointment of superintendent of the survey of the United States-Canada border from the Bay of Fundy to the head of the Connecticut River. Although the survey was suspended after two years, Johnson's work along the Maine-New Brunswick line in 1818-19 served as a partial basis for the final settlement of the border under the Webster-Ashburton Treaty in 1842.

Johnson maintained his several careers in the 1820's and 1830's. He designed or constructed many of the finest residences and public buildings in Chittenden County, served as a consultant on engineering projects as far away as North Carolina and Illinois, and continued to run surveys throughout northern Vermont. He also served again as Surveyor General of the state in the 1830's, and worked throughout that decade as an inspector for the Vermont Mutual Fire Insurance Company. Johnson died of sudden attack of erysipelas fever on April 30, 1842 at the age of seventy.