Not many individuals have their "industry" in the 1930 census listed as "United States" and even fewer list their occupation as president. The entire image can be seen here for those who are not aware of who was president in 1930.
You can search of the 1930 census at Ancestry.com and see what your relatives occupations are---doubtful if they are president. If you don't have a subscription, you can read our suggestions for a 14 day free trial here.