Thanks for your posting, I have recently found information on Ezra Clark Frisbie and there is a different birth place listed for him.1880 census for the boys; C. Lamartine, Julius C and Prince William Albert shows their fathers birthplace to be in New York.
The info below is the probably why he was named Ezra Clark by his parents William and Elizabeth.
History of Rutland Co., Vermont
Chapter XVI Vol.II
William FRISBIE, jr., was seventeen years old when his father settled in Middletown, before 1785. The father died in 1813, and the son studied medicine with Dr. Ezra CLARK, with whom he subsequently practiced for a time until his removal to Pittsford; in the latter place he practiced about twenty-five years, and removed to Phelps, N. Y., where he died about 1837. He had the reputation of being a good physician.