"siege" . . . "laid siege to Fort Pitt" . "United Kingdom" . . . "Siege of Fort Pitt" . . "siege of Fort Pitt" . . . "1763-08-10" . . "Siege of Fort Pitt#Biological warfare" . "siege to Fort Pitt" . "a smallpox blanket to keep us warm" . "besieged by the Lenape" . . "Great Britain" . "Siege of Fort Pitt" . . . . . "tainted blankets gifted to Indians at Fort Pitt" . . "laid siege to the fortification" . . . . . "British victory" . . . "besieging the fortification" . "laid siege" . . . "Ohio Countrynatives" .