Herbert hoover is the only other president to not accept his salary. Others have taken* it and given it to charity and then deducted it from their taxes which technically is taking +the money. ..but it looks good and generous. No fanfare Trumps way.
I alway thought JFK did not accept a salary also.
I’m not sure that is correct. It looks like all presidents have accepted their salaries. Two, Hoover and Kennedy, gave it away according to this article: