sentences:  Soper was the son of George Albert Soper (1837 – 1869) and Georgianna Lydia Buckman (d. 1882).He received his degree from Rensselaer Polytechnic Institute in 1895 and a PhD from Columbia University in 1899.He was described as 'Major, US Army', in the entry for 1907 in the New York City Department of Health Centennial Newspaper noting the 'discovery of the carrier, Typhoid Mary'.