HENDERSON 514 HENDERSON He practised medicine in New York until 1856, when he accepted the chair of materia medica at the Hahnemann Medical College of Philadelphia. He resigned this position in 1860 and removed to Grand Rapids, Michigan, the home of his wife. Hempel had married Mrs. Mary E. Calder in 1855. His later years were clouded with affliction. As a result of an accident, paralysis of his lower limbs set in, and still later he lost his eyesight. He died in Grand Rapids, Michigan, September 24, 1879. Hempel was a prolific writer. He translated all the prominent German and French works on homeopathy into English and wrote numer- ous articles and monographs on homeopathy. His chief work is his "Materia Medica," of which several editions appeared. In 1842 he published a grammar of the German language. In 1874 appeared his "Science of Homeop- athy." Albert Allemann. Nor. Amer. Jour. Homeopathy, New York, 1879- 1880, vol. X, 441-448. Henderson, Andrew Augustus (1816-1875). Andrew Augustus Henderson, medical di- rector of the United States Navy, received his education at the Huntingdon Academy, studied medicine under his father, and obtained the degree of M. D. from Jefferson Medical Col- lege in 1838. He entered the Navy as assis- tant surgeon in 1841. During the Mexican War he served on the Pacific Coast, and in 1856 made a cruise to the Orient. During the Civil War he was present in many engage- ments on the lower Mississippi. Henderson was commissioned medical director of the Navy, in 1871. He died in Brooklyn, New York, in 1875. He was a man of extensive attainments, possessing a wide knowledge of botany, ornithologj', and ethnology, and was well versed in English, French, German, and Spanish literature. Albert Allemann. Trans. Amer. Med. Assoc, Chicago, 1882, voL xxxiii. Henderson, Thomas (1743-1824). Thomas Henderson, physician, officer in the American Revolution, and public servant, was born in Freehold, New Jersey, in 1743; the baptismal record, by William Tennent (1705- 1777), in Old Tennent Church at Freehold, is August 28, 1743. He was the son of John and Ann Henderson. His father was the first president of the board of trustees of Old Ten- nent Church and was largely responsible for the charter of the church in 1750; an account of the securing of the charter written in "John Henderson's Beautiful Chirography" is still extant. Thomas Henderson graduated at Princeton University in 1761, then studied medicine under Nathaniel Scudder (q. v.), and practised at Freneau, then at Freehold. In 1766 he became a member of the Medical Society of New Jersey, the first state medical society in the country. He was deeply con- cerned in all things regarding the Colonies and was a member of the "Committee of Observa- tion and Inspection" (1774), and of the "Com- mittee of Safety"; he was major in Stewart's Minute Men in 1776, and was lieutenant- colonel in Forman's brigade, and gave valuable service at the Battle of Monmouth. Henderson was the "solitary horseman" who, riding up to Washington, told him of the retreat of Gen. Lee. In 1776 he was surrogate of Monmouth County; in 1777 he was made a member of the Provincial Council ; in 1780-85 member of the New Jersey Assembly; in 1783 and in 1799 he was judge in the Court of Common Pleas; in 1790 master in chancery; in 1794 he was vice-president of the Council of New Jersey. He served in Congress when Washington was President, and in April, 1796, made a speech favoring a treaty with Great Britain. Henderson was a trustee and ruling elder in Old Tennent Church and a charter member of the Monmouth County Bible Society (1817). He was a large property owner; the British burned his home in 1778, but the housfe which he rebuilt and in which he lived many years is still standing a mile and a half from Mon- mouth Court House. In the library of the Historical Society of New Jersey is a manuscript written by Hen- derson to the Hon. Elias Boudinot, giving inci- dents in William Tennent's life of which he was cognizant (see Tennent, John Van Brugh). He was the minister's physician, and was with him during the last twenty-four hours of his life. He married (1767) Mary, daughter of John Hendricks, who died soon after their marriage; in 1778 he married Rachel, daughter of John Burrowes, who died in 1840. They had seven daughters. Henderson died December 15, 1824, at Free- hold. Howard A. Kelly. Hist, of the Old Tennent Church, by Frank R. Symmes, 2nd edition, Cranbury, 1904. Appleton's Cyclop, of Amer. Biog., New York, 1887 Hist, of Med. in New Jersey, Stephen Wickes, M. D,, 1879, 281.
