Horatio Alger, Jr., an author who lived among and for boys and himself remained a boy in heart and association till death, was born at Revere, Mass., January 13, 1834. He was the son of a clergyman, was graduated at Harvard College in 1852, and at its Divinity School in 1860 and was pastor of the Unitarian Church at Brewster, Mass., in 1862-66.