Their son, Charles Hoffner, Jr., was the head professional at several golf clubs in the Boca Raton, Florida, area.

Around 1916 Hoffner took a job at the Atlantic City Country Club serving as assistant under John McDermott.

He shot a 72 in wet and cold conditions and tied the course record on the Brae Burn Country Club course which had been soaked with heavy rain the night before.

In May 1921, Hoffner and his eleven American teammates boarded the RMS Aquitania at New York and sailed to Southampton from where they traveled by train to Gleneagles at Perthshire, Scotland, where the forerunner to the Ryder Cup, the "International Challenge", would be played beginning on June 6, 1921.

After the Challenge Match concluded, a number of the American players stayed in the UK to play in the 1921 Open Championship being contested at the Old Course in St. Andrews.

[12] Prior to the tournament, in the first round of qualifying, he carded a fine 73—despite missing makeable putts on the last three holes—and finished just two shots shy of the Old Course record of 71 which was jointly held by George Duncan and two other players at the time.

[13] Hoffner won the 1919 Pennsylvania Open at Whitemarsh Valley Country Club and was runner-up to Cyril Walker in 1921 and Johnny Farrell in 1927.

= Unknown R64, R32, R16, QF, SF = Round in which player lost in PGA Championship match play "T" indicates a tie for a place Source:[15]