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Twightwee Treaty of Lancaster collection

 Collection — Box: L615
Identifier: L615

Scope and Contents

This collection includes one treaty between the colony of Pennsylvania and Twightwee (Miami) people in town of Lancaster in 1748 regarding an alliance, as well as a photostatic copy of said treaty.


  • 1748

Conditions Governing Access

This collection is open for research.

Conditions Governing Use

Legal title, copyright, and literary rights reside with Rare Books and Manuscripts, Indiana State Library, Indianapolis, IN. All requests to publish or quote from manuscripts must be submitted to Rare Books and Manuscripts.

Historical Note

In the summer of 1748, the Twightwees (more commonly known as the Miami people) requested an alliance with the Iroquois and with Pennsylvania. As a result, a conference was called in July of 1748 in Lancaster with the Twightwees. Conrad Weiser, George Croghan, Richard Peters, Andrew Montour, four members of the Council, and magristrates of Lancaster county met with fifty-five Shawnee and Twightwee Indians in Lancaster from July 19 to July 23, 1748. The treaty of Lancaster in 1748 marks a projection of Pennsylvania into Ohio lands. The Twightwees were to serve as a buffer between the colony and the French in Ohio. This was an instrument of power, as the Twightwees were inducted into an alliance with the Iroquois and under Pennsylvania influence.


Everett, Edward G. "Pennsylvania's Indian Diplomacy 1747-1753." Western Pennsylvania Historical Magazine 44, no. 3 (September 1961): 245-246.


3 Cubic Feet (1 large oversize box)

Language of Materials



This collection consists of one original item and a copy.

Custodial History

This collection was received by Rare Books and Manuscripts as a donation from the Library of Congress in 1920.


No further additions are expected.

Existence and Location of Copies

Digital reproductions of Twightwee treaty of Lancaster are available electronically in Indiana Memory:

Processing Information

Collection processing completed 2015/11/19 by Lauren Patton. EAD finding aid created 2015/11/15 by Lauren Patton.
Twightwee Treaty of Lancaster collection
Description rules
Describing Archives: A Content Standard
Language of description
Script of description

Repository Details

Part of the Rare Books and Manuscripts Repository

140 North Senate Avenue
Indianapolis, Indiana 46204 U.S.A.