Columbia subject headings:
Harvard subject headings:
Darby family.
Darby, Abiah, 1716-1794.
Darby, Abraham, 1711-1763.
Iron industry and trade--England--Coalbrookdale.
Moad family.
Quakers--England--Biography.
Quakers--England--Coalbrookdale--Biography.
Society of Friends--England--History--18th century.
Princeton subject headings:
Darby family.
Darby, Abiah, 1716-1794.