He was born in Pelham, New Hampshire, in 1774. He graduated from Harvard University in 1797; studied law; was admitted to the bar and commenced practice in Groton, Massachusetts, in 1804. He was elected as a Democratic-Republican to the Twelfth Congress to fill the vacancy caused by the resignation of Joseph B. Varnum; and was reelected to the Thirteenth Congress and served from November 4, 1811, to April 18, 1814, when he resigned.
Richardson moved to Portsmouth, New Hampshire, in 1814. He became a United States Attorney in 1814; and in 1816 was appointed chief justice of New Hampshire and served as chief justice until his death in 1838 in Chester, New Hampshire, where he is buried in the Old Cemetery. Dartmouth College gave him the degree of LL.D. He was elected a member of the American Antiquarian Society in 1819.
He is the author of the New Hampshire Justice (Concord, 1824) and The Town Officer (1824) and was co-reporter of the New Hampshire Superior Court Cases, of which the reports of several volumes are his alone (11 vols., 1819–'44). He is the subject of a Life (Concord, 1839).
- United States Congress. "William M. Richardson (id: R000231)". Biographical Directory of the United States Congress.
- This article incorporates text from a publication now in the public domain: Wilson, J. G.; Fiske, J., eds. (1900). . Appletons' Cyclopædia of American Biography. New York: D. Appleton.
|U.S. House of Representatives|
Joseph B. Varnum
| Member of the U.S. House of Representatives
from Massachusetts's 4th congressional district