A "Historical" fantasy team...

OK, I need some opinions here...and I know I've come to the right place! Since I am a high school history teacher, I've decided to create a team of 15 offensive, and 15 defensive players that fit the following criteria: They have made a positive affect on the course of American history. I need a racial balance, but I'm going to have to leave the ladies out of this one. I have several ideas, but wanted to see what you think. The position, and number should also "fit" at well.
Here is what I have so far:

QB: GW (George Washinton #1 Buzzball QB with white locks flowing from Helmet)
RB: MLK(Martin Luther King #39)
RB: TJefferson #24

LB: Tiger Woods
DB: Cesar Chavez

etc.

let me know some must have people, and their number and position from all walks of life (Einstein, Thomas Edison, George Washington Carver, etc)

thanks,

Matt