Reveal: There are 6 U.S. Presidents in the grid- 1ATAFT who was the 27th president, 12APIERCE (14th president), 20ATYLER (10), 23AGRANT (18), 34ATRUMAN (33), 37APOLK (11). If you match the presidency numbers to the corresponding grid numbers, you get, in order, HOOVER, the 31st President of the United States and also the name of a well-known vacuum cleaner maker.
Awesome. I knew what the answer would be from the title & 6 President names; I was then hoping that you'd use their numbers to spell out HOOVER, and sure enough- you did! HIGH FIVE, GREAT SUCCESS! LOL.