Final answer:
Herbert Hoover was not part of the Creel Committee; he headed the Food Administration during World War I and was more focused on economic issues and policies during his presidential administration.
Step-by-step explanation:
No, Herbert Hoover was not part of the Creel Committee. Herbert Hoover, tapped by President Wilson, headed the Food Administration during World War I and was responsible for mobilizing the food industry and agriculture rather than being involved in the Creel Committee, which was tasked with influencing public opinion to support the US war effort during World War I. Herbert Hoover's efforts included encouraging Americans to practice food rationing and increasing crop prices to motivate farmers, but they did not encompass the activities related to propaganda and public persuasion that the Creel Committee was known for. Instead, Hoover's administration later became more focused on economic issues, responding to the Great Depression, and promoting policies such as the Emergency Relief and Construction Act.