After the Fugitive Slave Law's passage, Mott and her husband made their Philadelphia home an Underground Railroad station, sheltering freedom seekers.
The Fugitive Slave Law, enacted on September 18, 1850, was among the most notorious provisions of the Compromise of 1850. It required citizens of free states to assist in the capture and return of escaped enslaved people and imposed harsh penalties on those who aided fugitives, effectively nationalizing the enforcement of slavery even in states that had abolished it.
In direct and open defiance, Lucretia Mott and her husband James Mott transformed their Philadelphia home into a station on the Underground Railroad, providing shelter, food, and assistance to people escaping enslavement as they made their way toward freedom, often in Canada. This was a dangerous act of civil disobedience—harboring fugitives carried significant legal risk, including fines and imprisonment—yet the Motts continued this work for years.
Mott's response to the law exemplified the fusion of her religious conviction and political activism: as a Quaker minister, she believed civil law that sanctioned human bondage was subordinate to a higher moral law. Her willingness to publicly and repeatedly break federal law distinguished her from more cautious reformers and reinforced her reputation as one of the most uncompromising abolitionists of her era. This activism, sustained over decades, forms a critical part of her legacy as both an abolitionist and a practical humanitarian.