If this does not apply to your family then your not related to the Mckees of Mckeesport.You see, George Croghan was Queen Alliquippa's Indian Agent.
Queen Alliquippa camp was in Mckeesport.It was called Queen Alliquippatown before it was called Mckeesport.
It's been said David McKee was raised by Queen Alliquippa.
It does seem Samuel Sinclair and General Arthur St Clair are relates in some way.For sure, Samuel Sinclair was a surveyor for George Washington.My ggggggrandfather Jacob Myers along with Christopher Gist were also surveyors for George Washington.
All these people knew each other in the mid 1750's.It's the well documented Christopher Gist line that tells who and where these people came from.