Jonathan Mitchell Sewall (1748–1808) was a lawyer and poet who achieved some notability, published as Jonathan M. Sewall. He was born in Salem, Massachusetts, to Mitchell Sewall and Elizabeth Price. (or according to other sources, York in 1749) and adopted by his uncle, chief Justice Stephen Sewall, studied law and in 1774 became register of probate in Grafton County, New Hampshire. His ode, War and Washington was celebrated and sung in the revolutionary war. A volume of his poems was published in 1801. He died in Portsmouth, New Hampshire on March 29, 1808.