Who died during Richard Nixon's presidency that left no former U.S. Presidents still living?

new info for me.thanks

Tater, Johnson was still alive after Eisenhower's death, so the question is valid

Tater, Oh... I thought this was a good question. How does Eisenhower dying in the spring of 1969 make this a bad question?

bad question. Eisenhower died 8n the spring of 1969, shortly after Nixon was inagurated