The Founding Fathers

The Founding Fathers were the political leaders of the United States during the late 1700s. The most notable members being George Washington, Thomas Jefferson, and Benjamin Franklin, all whom Timmy wished from the past to help him on his report. They were brought onto a magic stage in Timmy's Treehouse called The Timmy Turner Show. This wish caused the timeline to change where the United States lose the American Revolution and still part of the British Empire, which was the result of Benedict Arnold posing as Washington. They appeared in the episode Escape From Unwish Island as part of Timmy's team against the "Unwished Wishes", but even they turned against Timmy. The last appearance of George Washington was in the episode the Fairly OddLympics.

George Washington
See George Washington at Wikipedia for detailed information on the real person.

George Washington was the first President of the United States.

Escape from Unwish Island
The Founding Fathers appeared on Unwish Island being led by Gary in a plot for revenge against Timmy. It's unknown how or why they were brought there, and why there presence there has not affected the time line again.