When is someone ever going to write a book about all of the white people who fought against slavery ?

My grandparents built slave escape routes in West Virgina, risked their lives. Many of my family died in the Civil War fighting against slavery. You never ever hear about the white people who died and sacrificed and fought against slavery, or the sacrifices the whites made fighting against other whites to free the slaves. Over half a million whites died in the civil war to free slaves. I do not see them honored anywhere or even a holiday marking their sacrifice.