Peoria treaties from the National Archives, and land Cessions from the Forestry Service.
Ratified Indian Treaty 99: Tribes of the Illinois Nation (Peoria, Kaskaskia, Michigamea, Tamaroa, and Cahokia) - Edwardsville, Illinois Territory, September 25, 1818
Ratified Indian Treaty 361: Seneca; Mixed Seneca and Shawnee; Quapaw; Confederated Peoria, Kaskaskia, Wea, and Piankashaw; Miami; Ottawa of Blanchard's Fork and Roche de Boeuf; and Wyandot - Washington, DC, February 23, 1867
Ratified Indian Treaty 99: Tribes of the Illinois Nation (Peoria, Kaskaskia, Michigamea, Tamaroa, and Cahokia) - Edwardsville, Illinois Territory, September 25, 1818
Cession: 96a
Ratified Indian Treaty 178: Kaskaskia and Peoria (including Michigamea, Cahokia and Tamaroa) - Castor Hill, Missouri, October 27, 1832
Cession: 326
Cession: 327
Cession: 328
Cession: 498
Cession: 499
Cession: 500
Cession: 501
Cession: 504
Cession: 503
Cession: 505
Ratified Indian Treaty 273: Kaskaskia, Peoria, Piankeshaw and Wea - Washington, DC, May 30, 1854
Ratified Indian Treaty 361: Seneca; Mixed Seneca and Shawnee; Quapaw; Confederated Peoria, Kaskaskia, Wea, and Piankashaw; Miami; Ottawa of Blanchard's Fork and Roche de Boeuf; and Wyandot - Washington, DC, February 23, 1867