George Brayton was a member of the New York State Assembly (Oneida Co.) in 1804–05, 1806, 1807.
In 1814, he was appointed an associate judge of the Oneida County Court.
He resigned his seat on April 18, 1826, the last day of that year's regular session of the Legislature.
In 1828, he was one of the original incorporators of the Black River Canal Company.
He was buried at the Presbyterian Church Cemetery in Westernville.