KEMPSTER, Walter, physician, born in London, England, 25 May, 1842. He emigrated to the United States in childhood, was educated in the public schools of Syracuse, New York, and graduated at Long Island medical college, Brooklyn, in 1864. Entering the National army as a private, he served throughout the civil war, and in 1865 became acting assistant surgeon. At the close of the war he settled in Syracuse, New York, and in 1865-'6 was assistant superintendent of the Asylum for idiots there, he was assistant physician to the New York state lunatic asylum in Utica in 1866-'73, and since that time has been superintendent of the Northern Wisconsin hospital for the insane, at Oshkosh, Wisconsin From 1866 till 1873 he was associate editor of the "American Journal of Insanity." Dr. Kempster was the first physician in the United States to make systematic investigations into the pathological condition of the brains of the insane, and the first to photograph, through the microscope, the conditions therein found. He has published several papers on the jurisprudence of insanity, and "Reports of the Northwestern Hospital for the Insane" (Oshkosh, 1873-'87).