Emil Frederick "Dutch" Loeffler, Jr. (June 5, 1895 – March 19, 1948)[1] was an American professional golfer and golf course designer.

Loeffler assisted in modification of the course, including facilitating addition of many hazards that became a hallmark of Oakmont.

Loeffler finished in a tie for 17th place with his first round loss in match play to Cyril Walker on the 37th hole.

[12] Loeffler died on March 19, 1948—at the end of a 65-day stay at Presbyterian Hospital—of respiratory failure due to pneumonia.

WD = withdrew R32, R16, QF, SF = round in which player lost in PGA Championship match play "T" indicates a tie for a place