Welcome to the Seneca-Cayuga genealogy and history resources. This page brings together historical information, records, and research resources to help you trace Seneca-Cayuga families in Oklahoma and follow earlier generations to Ohio, Kansas, New York, Canada, and other locations connected with their history.
Seneca-Cayuga genealogy can be challenging because ancestors may appear in historical records under several different names, including Seneca, Seneca of Sandusky, Mixed Band of Seneca and Shawnee, Cayuga, New York Indians, Iroquois, or simply under the Quapaw Agency. The modern name Seneca-Cayuga should therefore not be the only term used when searching older records.
For families who lived in Indian Territory, Quapaw Agency census and Bureau of Indian Affairs records are an important starting point. These records can help identify family members, establish relationships between generations, and lead to allotment, school, land, church, and other records. Begin with the most recent Seneca-Cayuga ancestor you can document, then work backward through census and agency records. Compare several years of records whenever possible, and use the names of parents, spouses, children, ages, and places of residence to distinguish between families with similar names.
The resources below are intended to help you move from documented Oklahoma ancestors into the earlier Ohio, Kansas, New York, Canadian, and Iroquoian records that may reveal previous generations.
The Seneca-Cayuga Nation of Oklahoma traces its ancestry to Iroquoian peoples whose historic homelands included New York and the Great Lakes region. Seneca, Cayuga, and other Iroquoian people moved west into Ohio, where several groups became associated with the Seneca of Sandusky and the Mixed Band of Seneca and Shawnee.
After removal from Ohio in the early 1830s, these communities established themselves in northeastern Indian Territory. Their later history included the separation of the Seneca and Shawnee, the arrival of additional Cayuga families, and the development of the community that became the Seneca-Cayuga Nation of Oklahoma.
| Year | Event |
|---|---|
| 1700s | Iroquoian communities, including Seneca and Cayuga, established themselves in Ohio after leaving portions of their earlier homelands in the Northeast. |
| 1817 | The United States established reservations for the Seneca of Sandusky and the Mixed Band of Seneca and Shawnee in Ohio. |
| 1831 | The Seneca of Sandusky and Mixed Band of Seneca and Shawnee ceded their Ohio lands and agreed to remove to Indian Territory. |
| 1832 | The two groups arrived in northeastern Indian Territory and became associated as the United Nation of Senecas and Shawnees. |
| 1861-1865 | During the Civil War, most Seneca and Shawnee became refugees in Kansas. |
| 1867 | The Omnibus Treaty separated the Seneca from the Shawnee. The Seneca groups were combined as the Seneca tribe, while the Shawnee became the Eastern Shawnee. |
| 1870s-1880s | Additional Seneca, Cayuga, and other Iroquoian families joined the community in Indian Territory. |
| 1881 | More than 100 Cayuga from Canada and New York came to the Quapaw Agency seeking to join their relatives among the Seneca. |
| 1888 | The Seneca reservation began to be allotted to individual tribal members. |
| 1902 | Congress settled and approved the tribal affairs and allotment lands of the Seneca. |
| 1936 | The Oklahoma Indian Welfare Act provided for tribal reorganization. |
| 1937 | The Seneca-Cayuga Tribe of Oklahoma received its corporate charter. |
The ancestors of the Seneca-Cayuga Nation came to Indian Territory through several related communities rather than through one single migration.
The Seneca of Sandusky lived along the Sandusky River in Ohio, while the Mixed Band of Seneca and Shawnee lived at Lewistown. Treaties in 1831 provided for their removal to Indian Territory, and both groups arrived in the area of present-day northeastern Oklahoma in 1832.
The communities were subsequently known as the United Nation of Senecas and Shawnees. Following the Civil War, the 1867 Omnibus Treaty separated the Seneca from the Shawnee and established the Seneca community that became the foundation of the present-day Nation.
Cayuga ancestry is an important part of Seneca-Cayuga genealogy. Cayuga people had historic connections to New York, Ohio, Canada, and other Iroquoian communities.
Additional Cayuga families joined the Seneca in Indian Territory during the late nineteenth century. In 1881, more than 100 Cayuga from Canada and New York came to the Quapaw Agency intending to join their relatives.
Because historical records often classified these families as Seneca rather than Cayuga, researchers should search both tribal identities when tracing an ancestor.
The federal government administered many of the Native communities of northeastern Indian Territory through the Quapaw Agency, located near present-day Miami, Oklahoma.
This is particularly important when researching Seneca-Cayuga ancestors. A person may appear in a Quapaw Agency record even though the individual was Seneca or Cayuga rather than Quapaw.
National Archives records for the Miami (Quapaw) Agency include Seneca-Cayuga material from 1871-1970. The Oklahoma Historical Society also holds Quapaw Agency records dating from 1867-1936.
Seneca-Cayuga genealogy frequently requires research under several different tribal and geographic descriptions. The modern name should not be used as the only search term for earlier generations.
Quapaw Agency census records are among the most useful sources for tracing Seneca families in Oklahoma. The records can help establish family relationships, residences, ages, and continuity from one generation to another.
| Record | Microfilm |
|---|---|
| Seneca Census, 1885-1892 | M595.411 |
| Seneca Census, 1893-1900 | M595.412 |
| Seneca Census, 1901-1907 | M595.488 |
| Seneca Census, 1910-1921 | M595.489 |
| Seneca Census, 1922-1929 | M595.413 |
| Seneca Census, 1930-1932 | M595.414 |
| Seneca Census, 1933-1935 | M595.415 |
| Seneca Births, 1929-1938 | M595.416 |
| Seneca Marriages and Deaths | M595.415-M595.416 |
Individual allotment records are another important source for Seneca genealogy. The Seneca reservation began to be allotted in 1888, and by 1902 hundreds of allotments had been issued.
Allotment files may contain information about an individual's land, relatives, heirs, guardians, residence, and other family relationships. They can provide evidence that is not available in the annual census rolls.
The Seneca School was established near present-day Wyandotte in Ottawa County around 1869-1870 as a mission operated by the Friends Orthodox.
School and mission records can be useful for identifying children, parents, ages, residences, and family relationships. Researchers should search both school records and Quapaw Agency records when tracing children from the Seneca community.
Kansas is an important part of Seneca-Cayuga research because most Seneca and Shawnee became refugees there during the Civil War.
A family appearing in Kansas records during the 1860s may later be found in Quapaw Agency records in Indian Territory. Kansas records should therefore be treated as part of the family's migration history rather than necessarily indicating permanent residence.
A useful approach to Seneca-Cayuga genealogy is to work backward from the most recent known ancestor rather than beginning with the tribal name.
Earlier ancestors may not be identified as Seneca-Cayuga. They may appear as Seneca, Seneca of Sandusky, Mixed Seneca and Shawnee, Cayuga, New York Indians, or Iroquois. Searching these older descriptions can reveal records that would otherwise be missed.
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State Coordinator: Linda K. Lewis
Asst State Coordinator: Rebecca Maloney
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