Definition: In this task, you will be presented with a text and a pronoun. You should write the name that the pronoun refers to. Position of the pronoun in the text is showed within two "_"s.
Input: In 1910 he was appointed by United States Attorney General George Woodward Wickersham to be special counsel and attorney for the newly organized New York City Department of Justice. In January 1883 he married Letitia Beattie Rock. They had three children, Charles Duane, Jr., David Dudley Field, and Caroline Beattie. Charles Jr. (c. 1890--1971) had another son named Charles D. Baker (born 1928), who served as a U.S. government official under Ronald Reagan and Richard Nixon administrations. _His_ son, Charles D. Baker, Jr. (born 1956) was a Massachusetts government official. <sep>, Pronoun: His

Charles D. Baker