Frankly I find this dicussion rediculous. He owned a business lost everything during the depression and then became successful again.
Face it he was a naturalized citizen. for the census he would have to provide the docs.
What the census required varied from decade to decade. The original question of Agnew's eligibility sprung from the 1920 census, not 1930. Now, no questions concerning citizenship are even allowed.
I don't know what you think I need to face. All I've said here is that this entire discussion surrounding Agnew is based on a misinterpretation of something recorded in the 1920 census. And that's a fact.