For over 40 years, Thomas Garrett was an active Quaker organizer and conductor of the Underground Railroad. A member of the Pennsylvania Abolition society, he and his second wife, Rachel Mendenhall Garrett, maintained a crucial safehouse at 227 Shipley Street in Wilmington, Delaware. It was to this house that Harriet Tubman found her way and from there to freedom in Pennsylvania, as well as many others. Thomas Garrett is credited with the saving of 2,700 freedom seekers. A historical marker shows the place his home stood in Wilmington.