Who was the last First Lady to have a child while the President was in office (if any)?

by MrIvysaur

I am talking about the American President, of course. Did any First lady give birth while her husband was President? Who was the most recent?

Jazz-Cigarettes

Jacqueline Kennedy is the most recent. She gave birth to two of JFK's children during his presidency. The first was JFK Jr. in 1960, just a few weeks after his father's victory over Nixon in the election.

The second was another son, Patrick Kennedy, in August of 1963, but the child was born premature and died a few days later as a result of complications from this.