Johnston won the
Minnesota State Amateur title seven straight years (1921–1927) and won the
Minnesota State Open twice (1927–28). He was elected to the Minnesota Golf Hall of Fame in 1988. Johnston's biggest win came at the 1929
U.S. Amateur where he beat
Oscar Willing, 4 and 3, at
Pebble Beach Golf Links. Johnston played on four winning
Walker Cup teams:
1923,
1924,
1928, and
1930. He was also a member of the
1932 team but did not play in any matches. Johnston led the
1927 U.S. Open after two rounds but slipped to tie for 19th after a third round 87. ==Personal life==