Served in the American Revolutionary War.
Seba was a recruiting officer in Connecticut.
He enlisted soldiers and furnished supplies to the Continental Army.

From 1786-1794 Seba served as an officer for St. John's Episcopal Church of Waterbury, Connecticut.

After the American Revolutionary War, Seba headed to land in the 'The Connecticut Western Reserve'. This Western Reserve wilderness was bounded by the Pennsylvania border on the east; the 42nd parallel to the north, the 4lst parallel to the south and 120 miles west, which comprised some three million acres. Now, people settled in other parts of Ohio territory, but not so in the Western Reserve area. The reason was that no one could get title to the land as it was owned by the Colony of Connecticut that was given this land by the King of England.

The Western Reserve wilderness area was given by the state of Connecticut to people who had their farms and homes burned out by the British during the Revolutionary War. That part of the Western Reserve is known to this day as the 'Firelands'.

Ohio Historcial Marker:
Near Columbia Station in Lorain County, Ohio — The American Midwest (Great Lakes)
Columbia Township, reads;
Founded in 1807 Columbia was the first continuously inhabited settlement in Lorain County. Harmon, Levi and Azor Bronson, Calvin Hoadley, Jared Pritchard and others formed the Waterbury Land Company to buy the township from the Connecticut Land Company. In 1808, Sally Bronson named the township and became its first teacher. In 1809, the first church society was formed and Hoadley built a log gristmill beside the Rocky River. A militia company was organized in 1810 and a two story blockhouse was constructed for protection during the War of 1812.