The Quakers and other Caucasians were active in the abolition movement and with the Underground Railroad. However, it was predominantly run by free Black people from the North, especially in its earliest years. William Still from Philadelphia was at the forefront of the movement, with Harriet Tubman, Levi Coffin, Thomas Garrett, Calvin Fairbank and Charles Torrey. They were the true heroes of the Underground Railroad. Still rescued 649 fugitives sheltered in Philadelphia, including 16 who arrived on one day alone, June 1, 1855, according to historian David Blight.