Thompson Landon was born November 18, 1830 in Lansingburg, New York and the fourth child of parents Seymour Landon (1798-1880) and Phebe Thompson (1797-1879). Thompson Landon earned his B.A., then his M.A. in 1855, and later his D.D. in 1906. A reverend by profession, Thompson taught at the Amenia Seminary 1852-53 and at Pennington Seminary 1854-1857. He was stationed as a pastor in Newark, NJ, 1858-60; Franklin, NJ, 1860-62; Little Falls, NJ, 1862-64; Belvidere, NJ, 1864-67; Phillipsburgh, NJ, 1867-69; Montclair, NJ, 1869-72; Madison, NJ, 1872-74; Rahway, NJ, 1874-77; Port Richmond, NY, 1877-78; Succasunna, NJ, 1878-81; Elizabeth, NJ, 1881-83; Paterson, NJ, 1883-85; Thiels, NY, 1885. Thompson had been married to Sarah Durland on May 18, 1864. In 1885, Thompson Landon became the principal of the newly established Bordentown Military Institute in Bordentown, NJ.