So the north didn’t mistreat their slaves?
Good Lord no. They provided safety and gave them a place to stay and something to eat.
1820’s: The “Underground Railroad” began as an informal network of safe houses which helped runaway slaves escape to freedom It was mainly organized by Quakers and Mennonites. 2 “It existed rather openly in the North. The Underground Railroad, where it existed, offered local service to runaway slaves, assisting them from one point to another.” 3 Harriet Tubman (circa 1820 - 1913), a black abolitionist, walked to freedom. Then she returned 19 times into slave territory and led over 300 individuals, including her family and relatives, out of slavery. Lucretia Mott was a Quaker abolitionist who harbored runaways slaves in her Philadelphia home.
You have to admit that they did good work in the North with regards to this subject. Proof is provided above.