John Martin Jr. (1857-1929) was the third child and first son of John and Clara Cary Martin of Bangor.

His father, John Martin (1823-1904), drew him "in his favorite inclinations" on page 647 of his "Journal" that he wrote and illustrated beginning in 1864 to recount his life and experiences so his children could better understand their father and their own childhoods.

He is shown "haulling his pas dinner on his red sled Tiger in 1862," "mutilating his apple tree," with David Towle, wading in the mud in 1865; and with Fred Wood playing horse in 1864.