Reed, Alfred was born on December 23, 1839 in Ewing Township, Mercer County, New Jersey, United States. Son of George B. and Mary (Hepburn) Reed.
Educated Lawrenceville (New Jersey) High School, New Jersey Model School, Trenton, New Jersey. Rutgers College; left Rutgers before graduation and entered law school, Poughkeepsie, New York. Doctor of Laws, Rutgers and Princeton.
Admitted to New Jersey bar, 1864. Mayor of Trenton, New Jersey, 1867. President judge Court of Common Pleas, Mercer County, 1869-1874.
Justice Supreme Court of the New Jersey, 1875-1895. Vice-chancellor New Jersey Court of Chancery, 1895-1904. Again justice Supreme Court, June 16, 1904-June 16, 1911.