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| Treaty of Big Tree (1797) | |
|---|---|
| Name | Treaty of Big Tree (1797) |
| Date signed | September 15, 1797 |
| Location signed | Big Tree, Genesee County, New York |
| Parties | United States; Seneca Nation leaders; Robert Morris; Phelps and Gorham |
| Language | English |
Treaty of Big Tree (1797)
The Treaty of Big Tree (1797) was a pivotal land cession agreement that reshaped landholding in western New York and influenced relations among the United States, the Haudenosaunee Confederacy, merchants such as Robert Morris, and investors like Oliver Phelps and Nathaniel Gorham. Negotiated in the aftermath of the American Revolutionary War and the Treaty of Fort Stanwix, it formalized the sale of vast Seneca territories along the Genesee River and the southern shore of Lake Ontario to private and federal interests, while reserving certain reservations for the Seneca.
The treaty arose from competing claims and transactions dating to the post-American Revolutionary War settlement era, particularly following the Treaty of Fort Stanwix (1784) and the Treaty of Fort Harmar (1789). Speculators including Phelps and Gorham negotiated purchases with the Iroquois nations, complicated by debts of financiers like Robert Morris and pressures from the New York State Legislature and the federal government led by George Washington. Native land tenure among the Seneca, influenced by leaders such as Cornplanter, Red Jacket, and Young King, intersected with settler expansion encouraged by treaties such as the Jay Treaty and policies of figures like Henry Knox. The region’s strategic importance—near Niagara River and proposed canal routes—heightened interest from actors including New England merchants, Western Reserve speculators, and investors connected to Philadelphia finance networks.
Delegations met at Big Tree near present-day Geneseo and Mount Morris with commissioners representing the United States and the state of New York. Principal Seneca signatories included Red Jacket, Cornplanter, Little Beard, and Handsomer, alongside other Haudenosaunee representatives. U.S. and New York negotiators included agents appointed after guidance from George Washington, Timothy Pickering, and financiers such as Robert Morris who acted through intermediaries affiliated with Phelps and Gorham. Observers and participants included militia and civic figures from Canandaigua, Albany, and Philadelphia.
Under the treaty, the Seneca ceded title to millions of acres in western New York, including lands along the Genesee River valley and the southern shore of Lake Ontario, to private purchasers and the state. In exchange, the Seneca received monetary payments, guarantees for certain reserved tracts—later formalized as Seneca reservations such as Tonawanda Reservation, Cattaraugus Reservation, and Allegany Reservation—and promises of annuities and provisions administered through agents linked to Office of Indian Affairs predecessors. The agreement also recognized prior transactions involving Phelps and Gorham and rights asserted by Robert Morris and his syndicate. The treaty’s clauses interacted with federal instruments including precedents set by the Northwest Ordinance and later with land policy shaped by figures like Thomas Jefferson.
The treaty’s land transfers accelerated Euro-American settlement by New England and Mid-Atlantic migrants, investors from Philadelphia, and developers interested in transportation projects like the Erie Canal. Loss of territory undermined traditional Seneca hunting, fishing, and agricultural practices near sites such as Genesee Valley, while social leaders including Red Jacket and Cornplanter navigated pressures by advocating for adaptation and legal resistance. Neighboring Haudenosaunee nations including the Cayuga, Onondaga, Oneida, Seneca, and Mohawk observed shifts in power dynamics that influenced subsequent disputes resolved at forums like Canandaigua. The displacement contributed to broader Indigenous responses seen later in movements involving leaders such as Tecumseh and resulted in alliances and tensions that intersected with conflicts like the Northwest Indian War.
Legal questions arising from the treaty persisted into the 19th and 20th centuries, surfacing in litigation before state courts and the United States Supreme Court. Disputes involved claimants tied to Morris’s transfers, successors of Phelps and Gorham, and the Seneca Nation asserting aboriginal title and treaty protections under federal frameworks including doctrines emanating from decisions like Johnson v. M'Intosh and later jurisprudence such as Oneida County cases. State actions including allotment policies and later reform efforts invoked precedents from the Big Tree agreement in debates over reservation sovereignty, annuities, and the fiduciary role that evolved into agencies like the Bureau of Indian Affairs.
The Big Tree site and the treaty have been commemorated in local histories, museums, and markers in Genesee County and around Monroe County. Historians and Indigenous scholars referencing archives from institutions such as the New-York Historical Society, Library of Congress, and Smithsonian Institution have debated interpretations promoted by regional chroniclers, antiquarians, and revisionist writers. Public memory juxtaposes figures like Morris and Seneca leaders such as Red Jacket in narratives that intersect with exhibitions on the Iroquois Confederacy, settler colonial expansion, and landmarks such as Letchworth State Park near the Genesee Gorge. Ongoing scholarship in journals tied to American Historical Association, NAISA, and university presses continues to reassess the treaty’s legal, political, and cultural legacies.
Category:1797 treaties Category:Seneca Nation