In 1793, Schenck moved west to
Cincinnati in the
Northwest Territory. He was an agent of his uncle and other New Jersey men,
Jacob Burnet,
Jonathan Dayton, and
John Cleves Symmes. He surveyed and laid out
Franklin, Ohio, with
Daniel C. Cooper in 1796, where he later made his home. He spent 1797 surveying the
United States Military District in eastern Ohio. He married Elizabeth Rogers on September 14, 1798, at
Huntington,
Long Island. They made their home at Cincinnati. Schenck was appointed the secretary of
Northwest Territory Legislative Council from 1799 to 1802. In 1802, a
constitutional convention was held to write a constitution for the new state of
Ohio. Ten delegates were elected from
Hamilton County. Schenck finished in 14th place. He also laid out the town of
Newark, Ohio, in 1802. He was proprietor with his uncle and Judge Burnet. They chose the forks of the
Licking River as the town site. Schenck and family moved to Franklin in 1802 or 1803. They eventually had nine sons and a daughter, including
Robert C. Schenck and
James F. Schenck. He was the clerk of the
Ohio Senate during the
1st General Assembly, (1803). That General Assembly gave a charter to the Miami Exporting Company, the first bank in the state. Schenck was named a member of the first directorate of that bank on June 16, 1803. He was elected to represent several counties in the Ohio Senate for the
2nd General Assembly, (1803-1804). He laid out Port Lawrence, now
Toledo, Ohio in 1816. He represented Warren County in the
Ohio House of Representatives during the
19th General Assembly, (1820-1821). ==Military activities==