Parsons is remembered chiefly as the author of a series of useful legal treatises and some books in support of Swedenborgian doctrines.

[1] In 1824, he took a position as editor of the new United States Literary Gazette.

[2] He wrote a biography of his father, an American jurist who was also named Theophilus Parsons (1749–1813).

[3] He also edited and published the Civil War letters of his daughter, Emily Elizabeth Parsons, a nurse and administrator of Benton Barracks military hospital in St. Louis, Missouri.

This biographical article about an American legal academic is a stub.