Photograph of Food Administration certificate, Southern California, 1931. "The United States Food Administration to Rhys G. Thackwell; This is to certify that you have served as a Member of the United States Food Administration, engaged from December 1918 to August 1919 in the American relief of the liberated peoples of Central and Eastern Europe. Your work has been done voluntarily and unselfishly, without thought of personal reward. You have well served your own country in its humane task of mitigating the misery, starvation, and economic distress consequent to the Great War. Herbert Hoover, United States Food Adminstrator, Director General of Relief" -- on certificate.