Sieg received his masters in physics in 1901 and his doctorate in philosophy in 1910 from the University of Iowa.
Prior to Sieg's retirement, the university opened its school of dentistry in 1945.
To the great credit of Sieg and his administration, the University of Washington was particularly responsive to the plight of its Nisei students during the months leading up to the internment of Japanese Americans.
With the internment looming, Sieg took an active leadership role in advocating for the transfer of Nisei students to universities and colleges outside the West Coast to help them avoid the mass incarceration authorized by the signing of Executive Order 9066.
Pound sign (#) denotes acting or interim president