This report is arranged by the creeks along which the mills were situated. It gives a detailed view of the area’s former industrial past, providing the amount and worth of products, number of employees and other information for the county’s 158 mills. Streams mentioned include: Cobb’s Creek, Darby Creek, Mukinipates Creek, Crum Creek, Ridley Creek, Chester Creek, Green’s Creek, Marcus Hook Creek, Naaman’s Creek, Buck Run and Brandywine Creek.