The Florida Curriculum clearly inflates the importance of white people seeking to end slavery. but there were (as you mention) white abolitionists taking a stance. It's also a challenge to find white people who were seeking to address the inequities of the Jim Crow era. One exception: The Association of Southern Women for the Prevention of Lynching (ASWPL) But you can find contrary movements as well--e.g. the early suffragists who argued that (white) women should be given the right to vote in order to counteract the possible votes of black men (and women).