Macaulay, Zachary F.R.S., an English philanthropist, of Scottish descent, born in 1768, father of the historian, a merchant, fought forty years with William Wilberforce in promotion of the British and-slavery movement. He died May 13,1838. See Lond. Genil. Mag. (March, 1838, page 323; December 1838, page 678); Thomas, Dict. of Biog. and Mythol. s.v.