Slavery 3 Coal depots 2 Duty 2 Politics and government 2 Presbyterian Church 2 Railroads 2 Religious aspects 2 more ... Social conditions 2 Thanksgiving Day addresses 2 %SP3 1 Afro-Americana 1 Berks County (Pa.)--History 1 Berks County (Pa.)--History--18th century 1 Enslaved persons 1 Genealogical correspondence 1 Genealogy 1 Genealogy & local history 1 Impressment 1 Iroquois Indians--18th century 1 Iroquois Indians--Early works to 1800 1 Iroquois Indians--Government relations 1 Iroquois Indians--Government relations--To 1789 1 Iroquois Indians--Land tenure 1 Iroquois Indians--Land tenure--Early works to 1800 1 Iroquois Indians--Treaties 1 Legal status, laws, etc 1 Love-letters 1 Medicine 1 Mohawk Indians--Early works to 1800 1 Mohawk Indians--Government relations 1 Mohawk Indians--History--18th century 1 Mohawk Indians--Land tenure 1 Native Americans 1 New York (State) History French and Indian War, 1755-1763 1 Pennsylvania--Genealogy 1 Pennsylvania--History--French and Indian War, 1755-1763 1 Pennsylvania--History--French and Indian War, 1755-1763--Registers 1 Pittsburgh (Pa.)--History--French and Indian War, 1755-1763 1 Six Nations 1 Slave trade 1 less ...