Daryle Ward of the Pittsburgh Pirates hits for the cycle and ties his career best with six RBI in a 11 – 8 victory over the St. Louis Cardinals. The feat has been done 23 times in Pittsburgh history and 243 times in the majors since 1882. Ward joins his father, Gary Ward, to become the first father/son combination in major league history to hit for the cycle. The senior Ward accomplished the feat on September 18, 1980, for the Minnesota Twins.

On May 26, 2004 —  Daryle Ward of the Pittsburgh Pirates hits for the cycle and ties his career best with six RBI in a 11 – 8 victory over the St. Louis Cardinals. The feat has been done 23 times in Pittsburgh history and 243 times in the majors since 1882. Ward joins his father, Gary Ward, to become the first father/son combination in major league history to hit for the cycle. The senior Ward accomplished the feat on September 18, 1980, for the Minnesota Twins.

Source:
Baseball Reference May 26