In 1929 , U.S. President Herbert Hoover appointed Jahncke as Assistant Secretary of the Navy , a position which Jahncke filled from 1 April 1929 to 17 March 1933 . Jahncke served as a delegate at the 1932 Republican National Convention , which re-nominated President Hoover , and as an alternate to the 1936 Republican National Convention , which nominated Alfred M. Landon
1936 Republican National Convention
1936 Republican National Convention
Ernest L. Jahncke