We know who was effected by Jim Crowe. Every Black person in America that was alive during Jim Crowe.
Many were not Blacks.
. “Between 1492 and 1880, between 2 and 5.5 million Native Americans were enslaved in the Americas in addition to 12.5 million African slaves.”
And Indians owned other Indians as slaves.
Among some Pacific Northwest tribes,
about a quarter of the population were slaves. Other slave-owning tribes of North America were, for example, Comanche of Texas, Creek of Georgia, the fishing societies, such as the Yurok, that lived along the coast from what is now Alaska to California; the Pawnee, and Klamath.
and of course Blacks owned slaves
In 1830, there were 3,775 black (including mixed-race) slaveholders in the South who
owned a total of 12,760
slaves
In his 1985 statewide study of black slaveholders in South Carolina, Larry Koger challenged this benevolent view. He found that the majority of mixed-race or black slaveholders appeared to hold at least some of their slaves for commercial reasons. For instance, he noted that in 1850 more than 80% of black slaveholders were of mixed race, but nearly 90% of their slaves were classified as black