Judge Hart is still in vigorous health and active practice, and in years of practice is the senior member of the Westchester bar. He was the last of the judges appointed. His successor, Albert Lockwood, of Sing Sing, was elected under the Constitution of 1846 as county judge, and those who have occupied the position since have been elected. Mr. Lockwood proved to be a very successful judge, and gained a most enviable reputation, especially for judicial fairness.

John W. Mills, of White Plains, succeeded Mr. Lockwood on the bench in 1851. He had studied law under J. Warren Tompkins, and before being admitted to the bar became deputy county clerk, December 30, 1836. He was admitted to practice in 1837, was appointed master in Chancery in 1844, and an examiner in Chancery in 1846. He was county judge from 1851 to 1855, surrogate from 1862 to 1870, and was supervisor of White Plains several times. He was at one time associated in the practice of his profession with J. Warren Tompkins, subsequently with John J. Clapp, and afterwards with Robert Cochran. Later still he was the senior member of the law-firm of Mills, Cochran & Verplanck. After the dissolution of the firm he attended to private business only. Mr. Mills died suddenly, September 25, 1882, of apoplexy, in the seventy-third year of his age. At one time he had a very large and lucrative practice, perhaps the largest, of the members of the Westchester bar at that time.

Judge William H. Robertson' who succeeded Judge Mills in 1855, is a son of Henry Robertson, of whom a brief sketch appears in another part of this work. He was born at the family homestead in Bedford, October 10, 1823. His boyhood was spent on his father's farm, and his early education was obtained at the district schools and at Union Academy, in Bedford, of which Alexander G.