Brown practiced law in Newburgh with Abram S. Cassedy under the law firm Cassedy & Brown. In 1882, he became a justice in the
New York Supreme Court. In 1889, New York governor
David B. Hill appointed him to the Second Division of the
New York Court of Appeals. He served there until 1892, when that court expired. He was then assigned presiding judge to the General Term, Supreme Court, Second Department. When the
Appellate Division was created in 1896, governor
Levi P. Morton appointed him presiding Justice of the Second Division. While serving on the court, he was involved in a number of important cases, including writing the prevailing opinion for the
Tilden will case. At the end of his term as Justice, he was renominated but declined to run for re-election. Brown served as a secretary for the
New York State Democratic Committee in 1874 and from 1880 to 1882. In the
1894 New York state election, he was the Democratic candidate for the
New York Court of Appeals. From 1897 to 1901, he served as general counsel for the
Metropolitan Street Railway Company. He then engaged in general practice, retiring in 1922. == Personal life ==