37th President: Richard Nixon, 1969 

Mic = 37 (Nixon was the 37th president)

Knickers on = Nixon

Push-up = 969 = 1969 became president

Rich = Richard

The mic (37) was placed in front of the president who had just knickers on (Nixon) while he did a pushup (969).

Connect Nixon to Richard

The reason he kept those knickers on (Nixon) was that his best friend said, "I will make you rich (Richard) if you do because I will become the most famous interviewer ever".

NOTE: The way Mammoth Memory remembers Richard is to think Richard is Rich.