That sounds like a wonderful idea to design an alternate banknote series that showcases a diverse collection of famous Americans. Here are some suggestions for each denomination, keeping in mind the need for diversity in terms of gender, race, and contributions to the nation:

"One" banknotes (20):

1. Harriet Tubman
2. Susan B. Anthony
3. Cesar Chavez
4. Frederick Douglass
5. Eleanor Roosevelt
6. Chief Sitting Bull
7. Langston Hughes
8. Maya Angelou
9. Alan Turing
10. George Washington Carver
11. Sacagawea
12. Thurgood Marshall
13. Sylvia Rivera
14. Rosa Parks
15. Jonas Salk
16. Sally Ride
17. Wilma Mankiller
18. Dolores Huerta
19. Neil deGrasse Tyson
20. Katherine Johnson

"Five" banknotes (10):

1. Billie Holiday
2. Amelia Earhart
3. Helen Keller
4. Martin Luther King Jr.
5. Ralph Ellison
6. Sojourner Truth
7. Ida B. Wells
8. Grace Hopper
9. Rachel Carson
10. Elie Wiesel

"Ten" banknotes (10):

1. Jane Addams
2. John Muir
3. Marsha P. Johnson
4. Malcolm X
5. Toni Morrison
6. Louis Armstrong
7. Isamu Noguchi
8. Dolley Madison
9. Dr. Robert Gallo
10. Zora Neale Hurston

"Twenty" banknotes (9):

1. Muhammad Ali
2. Elizabeth Cady Stanton
3. Bayard Rustin
4. Thomas Edison
5. Audre Lorde
6. Walt Whitman
7. Albert Einstein
8. Georgia O'Keeffe
9. Frank Lloyd Wright

"Fifty" banknotes (5):

1. Jackie Robinson
2. Nellie Bly
3. Tecumseh
4. James Baldwin
5. Marie Curie

"One Hundred" banknotes (4):

1. Frederick Law Olmsted
2. Alice Paul
3. C. V. Raman
4. Shirley Chisholm