Why do you think William recorded information about each of the slaves who passed through Philadelphia?

William likely recorded information about each of the slaves who passed through Philadelphia to document their experiences and histories, reflecting a concern for their individual identities in a time when they were often dehumanized. This practice may also have served legal or economic purposes, as keeping records could help in managing the slave trade and ensuring compliance with laws regarding slavery. Additionally, such documentation could have been an act of resistance against the systemic oppression faced by enslaved individuals, highlighting their humanity and personal stories.