Thomas William Hungerford was an American mathematician who worked in algebra and mathematics education. Hungerford did his undergraduate work at the College of the Holy Cross and defended his Ph.D. thesis at the University of Chicago in 1963 (advised by Saunders Mac Lane). He is the author or coauthor of more than a dozen widely used and widely cited textbooks covering high school to graduate level mathematics. From 1963 until 1980, he taught at the University of Washington, and then at Cleveland State University until 2003. From 2003–2014, he was at Saint Louis University. Hungerford had a special interest in promoting the use of technology to teach mathematics. Source: [Wikipedia](https://en.wikipedia.org/wiki/Thomas_W._Hungerford)