did any of the little rock nine grow up to do anything significant?

Yes

Explanation:

The little rock nine were the African-American high school students that got enrolled in Central High School in Little Rock, Arkansas. They are Elizabeth Eckford, Minnijean Brown, Gloria Ray, Terrance Roberts, Ernest Green, Thelma Mothershed, Jefferson Thomas, Melba Patillo, and Carlotta Walls.

They eventually grew up to do many significant things, this is evident in the fact that Melba Patillo later turned to NBC reporter, Terrance Roberts eventually turned to a Professor at UCLA, and Ernest Green became assistant Secretary of Labor under President Jimmy Carter.

it further strained relations between the north and the south and convinced

b or c im pretty sure