Career
was the captain (later, a lieutenant) of the 5th Company of the 64th regiment of the Virginia Militia in Henry County during the War of 1812. He was born in Pittsylvania County, Virginia. He was the son of American Revolutionary War soldier George Dyer.
Dyer served as a state legislator in the Virginia Assembly from 1819 till his death in 1823.
Dyer and his prominent family operated a local store near Leatherwood, Virginia. Locations named in his honor include Dyers Store Road and the Dyers Store Volunteer Fire Department.