Born in Plaistow, New Hampshire, on August 23, 1835, Greenleaf Clark attended Atkinson Academy, New Hampshire for preparatory school before enrolling in Dartmouth College in 1851. Clark graduated from Dartmouth in 1855, and read the law at the firm of Hatch & Webster in Portsmouth, New Hampshire before entering Harvard Law School, from which he graduated in 1857. Clark was admitted to practice in New Hampshire, but relocated to Saint Paul, Minnesota soon after. He practiced law for several years in Minnesota until he was appointed by Governor Pillsbury as Associate Justice of the Minnesota Supreme Court in March 1881. His seat on the Court was one of two created by the Laws of 1881, which increased the number of Associate Justices from two to four. Justice Clark’s time on the Court was brief, ending in January 13, 1882, after his party did not endorse him. Justice Clark’s service to the State of Minnesota was not, however, limited to his time on the bench. Justice Clark served as a regent of the University of Minnesota, from 1879 until his death in 1904, and was president during his later years, 1901 -1904. In his position of regent, Justice Clark was active in the formation of the law school, chairing the committee tasked with overseeing it. He drafted legislation in 1888 that would supply the law library with state materials and was instrumental in gaining funds from the legislature for the law school’s first building in 1889. Justice Clark also held a keen interest in preserving the history of Minnesota and served on the council of the Minnesota Historical Society, including as its president in 1904. He died in St. Paul, Minnesota, on December 7, 1904. Earlier that same year, his alma mater, Dartmouth College, conferred upon him the degree of LL.D. in recognition of his many achievements.
You may read more about the life and work of Greenleaf Clark in the memorial, linked below, and in the book Testimony: Remembering Minnesota’s Supreme Court Justices, which is the source of the brief biography.