Biography
Mark Alan Williamson (July 21, 1959 in Corpus Christi, Texas, is a retired professional baseball player who played pitcher in the Major Leagues from 1987-1994. He played for the Baltimore Orioles. On July 13, 1991, he pitched a no hitter along with Bob Milacki, Mike Flanagan, and Gregg Olson against the Oakland Athletics. That combined no-hitter is the last thus far in Orioles history. http://en.wikipedia.org/wiki/Mark_Williamson_(baseball)
