High Quality Content by WIKIPEDIA articles! Thomas Alan Keith (December 21, 1946 – October 30, 2011) was a radio personality who worked for Minnesota Public Radio in St. Paul, Minnesota. He was the engineer for Garrison Keillor when he began his early morning radio show from the St. John`s University Collegeville studio. Keillor wanted dialogue during the program and Keith was about the only other person around at that early hour. Keith was one of the primary sound effects performers for the Prairie Home Companion radio show and was often an actor in sketches written by Keillor.