Here is a list of mathematicians and scientists who did amazing things, but were not traditionally recognized. There are many more, so this is just a partial beginning list to get your ideas flowing.
Annie Easley
Barbara McClintock
Rachel Carson
Grace Hopper
Ada Lovelace
Mae Jemison
Sau Lan Wu
Hypatia
Jane Cooke Wright
Katherine Johnson
Mary Anning
Rosalind Franklin
David Blackwell
Lewis Howard Latimer
James E West
Joseph Lee
George Crum
Frederick McKinley Jones
Dr Charles Drew
Percy Lavon Julian
Alfred Cralle
Garrett Morgan
Lonnie Johnson
Alice Ball, Chemist
Dr. Patricia Bath
Dr. Alexa Canady
Dr. Shirley Jackson
Maria Merian
Dr. Gladys West
Annie Easley
Barbara McClintock
Rachel Carson
Grace Hopper
Ada Lovelace
Mae Jemison
Sau Lan Wu
Hypatia
Jane Cooke Wright
Katherine Johnson
Mary Anning
Rosalind Franklin
David Blackwell
Lewis Howard Latimer
James E West
Joseph Lee
George Crum
Frederick McKinley Jones
Dr Charles Drew
Percy Lavon Julian
Alfred Cralle
Garrett Morgan
Lonnie Johnson
Alice Ball, Chemist
Dr. Patricia Bath
Dr. Alexa Canady
Dr. Shirley Jackson
Maria Merian
Dr. Gladys West