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Mary Louise Sator family collection

Identifier: L488

Scope and Contents

This collection includes correspondence, papers, diaries, genealogical research materials, books, pamphlets, periodicals, photographs--including cartes de visite, tintypes, and negatives--35mm slides, and realia from Mary Louise Sator, Mary Cleason O'Hair, and O'Hair, Brady, and Sator families in the Indiana, Illinois, Wisconsin, and the United States, ranging from 1827 to 1994, and undated, relating to family life and homes, interests, careers, and family history pertaining to the O'Hair, Brady, Moore, Critchlow, Herriott, Hankinson, McGuire, and other related families.

Series 3 comprises genealogical research materials for the O'Hair, Brady, and other related families. Therein, vital records are largely copies, while many original certificates and documents for the Brady and O'Hair families are found in Series 1. Included in the research materials is correspondence between families and cultural institutions about genealogical findings.

There is also a panoramic photograph depicting Mary Louise O'Hair's high school graduating class in 1932 (OP008).


  • 1870-1995


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.

Biographical Note

Mary Cleason Brady was born June 10, 1885, to Cleason Calvin (1852-1895) and Florence (Moore) Brady (1857-1950) and lived in Miami County, Indiana. She married Robert Cleveland O'Hair (1886-1958), an economist form Cook County, Illinois, on June 6, 1904, and they had three children: Robert Craig (1905-1969), Richard Franklin (1913-1978), and Mary Louise (1914-1988). O'Hair was the curator of the Wabash County Museum for 18 years. She spent over 50 years researching her family history which she then passed on to her daughter. O'Hair died on May 3, 1979 and was buried in Matlock Cemetery in Wabash, Indiana.


Mary Louise O'Hair was born on August 2, 1914 to Robert Cleveland (1886-1958) and Mary Cleason (Brady) O'Hair in Illinois. The family lived in Chicago, Illinois where her father worked as a public accountant and an economist. She graduated from Glenbard High School in Glen Ellyn, Illinois in 1932 and from the University of Wisconsin, Madison in 1936. O'Hair married William Mitchell Sator (1912-1980) on May 29, 1940 in Chicago, Illinois. Like her mother, she was a genealogist and a member of the Daughters of the American Revolution. The couple lived in several places, including White Plains, New York, Trumbull and Bridgeport, Connecticut, and Ela, Illinois. After her husband died on Janaury 23, 1980 in Bridgeport, Connecticut, she lived in Scottsdale and Mesa, Arizona at least part time. Mary Louise Sator died on November 4, 1998 in Brookings, South Dakota.


Items in the collection. "Mary Louise O'Hair." 1920 United States Federal Census. Accessed March 4, 2024. "Mary Louise O'Hair." 1930 United States Federal Census. Accessed March 4, 2024. "Mary Louise Sator." 1950 United States Federal Census. Accessed March 4, 2024. "Mary Louise O'Hair." Cook County, Illinois Marriage Index, 1930-1960. Accessed March 4, 2024. "Mary Louise Sator." U.S., Social Security Applications and Claims Index, 1936-2007. Accessed March 4, 2024. "Mary Louise Sator." U.S., Social Security Death Index, 1935-2014. Accessed March 4, 2024. "William M. Sator." Connecticut Death Index, 1949-2012. Accessed March 4, 2024. "William Mitchell Sator." U.S., World War II Draft Cards Young Men, 1940-1947. Accessed March 4, 2024. "Mary Cleason Brady O'Hair." Find a Grave Memorial. Accessed March 4, 2024.'hair.


7.45 Cubic Feet (20 manuscript boxes, 1 oversize clamshell box, 1 extra-large oversize folder)

Language of Materials



This collection is arranged in the following series:

Series 1: Family correspondence and papers, 1827-1994

Series 2: Daughters of the American Revolution application papers, 1904-1985

Series 3: Genealogy research, 1870-1992 Subseries 3.1: Genealogical records, 1817-1991 Subseries 3.2: Family correspondence, 1963-1990 Subseries 3.3: Allied families genealogical research, 1895-1992

Series 4: Publications, 1907-1991

Series 5: Photographs and postcards, circa 1860-1989, undated

Series 6: Realia, 1926-1963, undated

Custodial History

This collection was received by Rare Books and Manuscripts as a donation from Mary Louise Sator and Ray Harriot on 2001/12/2.


No further additions are expected.

Related Materials

Materials relating to this collection may be found in the following collections in Rare Books and Manuscripts, Indiana State Library, Indianapolis, IN:

OBC139 Cleason C. and Florence M. Brady certificates

OBD022 Cleason C. and Florence M. Brady oversize certificates.

Processing Information

This collection was initially processed in 2001 by Jamie Dunn. Collection reprocessed in 2002 by Jeffery Dickens. EAD finding aid created on 2023/10/20 by Alexander Chrapliwy. Collection reprocessed 2024/03/13 by Brittany Kropf. EAD finding aid revised 2024/03/13 by Brittany Kropf.
Mary Louise Sator family collection
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Describing Archives: A Content Standard
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Repository Details

Part of the Rare Books and Manuscripts Repository

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