Dr. Arthur B. Van Loon, eldest son of William H. and Caroline M. (Stark) Van Loon, was born in Albany, December 23, 1868, and is of Holland Dutch descent. His father, a native of Troy, N. Y., has been for several years an active citizen of Albany. His mother was descended from General Stark of Revolutionary fame. Dr. Van Loon was graduated from the Albany High School in 1888, read medicine with Dr. W. E. Milbank, and was graduated from the Albany Medical College in 1891, delivering the class oration. He was graduated from the New York Homeopathic Medical College in 1892 and for one year was interne in Ward's Island Hospital. While in New York he took a special course in the Carnegie Laboratory (connected with Bellevue College), and in 1893 began the active practice of his profession in Albany; since then has made gynecology a speciality. He is a member of the surgical staff of the Albany Homeopathic Hospital, a member of the Albany County Homeopathic Medical Society, the New York State Homeopathic Medical Society and the American Institute of Homeopathy. April 11, 1895, he married Caroline S., daughter of the late John Phillips, of Albany.