Lincoln Wolfenstein (February 10, 1923, Cleveland, Ohio – March 27, 2015, Oakland, California) was an American particle physicist who studied the weak interaction. Wolfenstein was born in 1923 and obtained his PhD in 1949 from the University of Chicago.[1] He retired from Carnegie Mellon University in 2000 after being a faculty member for 52 years. Despite being retired, he continued to come into work nearly every day.[2][3][4]