Wilkesbarre April 18th 1791.
Sir,
I am to hold another treaty with the Six Nations. I have proposed
to hold it at the Painted Post on the 15th of next June. Tomorrow I shall send off an express to Canadanqui, to General Chapin and Joseph
Smith, with a speech to be communicated to all the Six Nations, inviting
them to the treaty. But it is possible Smith may he absent, and nothing
more be done than to make the Indians understand that I am to hold a
treaty with them as above mentioned. Therefore I wish you to come to
Wyoming by the first of May at farthest, by which time I shall return
from Philadelphia. I shall then give you my speech to carry first to the Indians at Geneseo & at Buffaloe Creek, and then to the Mohawks; and
you must either go (if there be time) or get the Chiefs to send runners to the other four nations, to invite the Sachem Chiefs and Warriors
to attend. My present idea is, that you will be in the Indian Country till the time of the treaty, and bring the Indians along with you. The business is important; and I trust you will let nothing prevent your engaging in it.
I am your friend & servant 
Timothy Pickering.
Coll. Pickering
letter April 18 1791