Question: Who is the father of the 13th president of the University of Oklahoma?
Sentence (from "Boren family"): The family is one of the most notable in Oklahoma, producing Democratic politicians including Lyle Boren (1909–1992), U.S. Representative for Oklahoma's 4th district from 1937 to 1947, his son David Boren (born 1941), Governor of Oklahoma from 1975 to 1979, U.S. Senator from 1979 to 1994, and current President of the University of Oklahoma since 1994, and his grandson Dan Boren (born 1973), a Blue Dog who was the U.S. Representative for Oklahoma's 2nd district from 2005 to 2013.
Relevant evidence: Yes