Barbara Bush
Barbara Bush was the forty-first First Lady of the United States. An animated version of her appeared in The Adventures of Super Mario Bros. 3 episode Reptiles in the Rose Garden.
In the episode, King Koopa warped the White House, along with everyone inside (including Barbara and her husband, George) to Dark Land. Shortly afterwards, Bowser banished the White House to the bottom of the Mushroom Sea. Barbara feared for their lives, while George simply continued his phone conversation.
When Mario showed up wearing a Frog Suit, Barbara was frightened of him at first. However, Mario quickly proved himself to Barbara by flushing the water out of the partially-flooded White House, allowing it to rise to the surface of the Mushroom Sea. As a thank-you, Barbara told Mario that she'd recommend him to all of her friends.
When Mario managed to warp the White House back to Washington D.C., he accidentally placed it on top of the Washington Monument. Barbara assumed the role of Captain Obvious, and told Mario that her husband couldn't run the country like this. Although she was never seen again on the show, it's assumed that her life returned to normal once the White House was returned to its proper spot.