Loos was a frequent competitor in the PGA Championship , last playing in 1935 .
He won the 1917 Shawnee Open , the 1921 California State Open , and the Illinois PGA Championship in 1922 and 1924 .
Loos was a frequent competitor in the Illinois PGA Championship   , last playing in 1935 .
He won the 1917 Shawnee Open , the 1921 California State Open , and the Illinois PGA Championship in 1922 and 1924 .