He was a delegate to the Republican National Convention in 1916 and 1932 .
Rockwell was a member of the Senate from 1915 to 1919 and again from 1929 to 1930 .
Rockwell was a member to the Republican National Convention in 1916 and 1932 .
Rockwell was a member of the Senate from 1915 to 1919 and again from 1929 to 1930 .