The 27th American President, William Taft: first to own a car, kept a moomoo cow on the White house lawn

 https://youtu.be/tBaFgoiiFhQ

https://youtu.be/dUNgV1pq438

With regards to the 29th president, I would not be surprised if he was intentionally murdered by one of his corrupt cronies. Similar to JFK who appears to have been murdered at the organisation of his vice president.