Michael M.T. Henderson, Professor Emeritus of Linguistics, passed away on April 2, 2018. Dr. Henderson received his M.A. degree from Columbia University (1965) and his Ph.D. in Linguistics from the University of Wisconsin-Madison (1972), with a dissertation on Dari (Kabul Persian) Phonology. He served as Executive Director of the Kabul English Language Center in Afghanistan (1965-1968) and joined the University of Kansas in 1975 as Director of the Applied English Center and Assistant Professor of Linguistics. Dr. Henderson was promoted to Associate Professor of Linguistics in 1979 and chaired the Linguistics Department for two terms, from 1984-87, and from 1997-2000. Dr. Henderson retired from KU as Professor Emeritus in 2000.