Nancy H. was the daughter of Daniel Reasoner and his wife Missouria Monroe.

?5 REASONER siblings known.

Nancy H. Reasoner married Elmer-8 E. Warner on 3/25/1885 in Wheatfield Twp., Ingham Co., MI. at the home of C. F. Warner of Wheatfield Twp., Ingham, MI.

No parents listed on Marriage Index.

No children.
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Research by Brenda S. #48449677, 2014:

1) There's a 1880 census in DeKalb County, IN, for a Missouria and Daniel Reasoner, with a daughter Nancy of the correct age and birth location (IN) to be your Nancy (attached). Note also 18 year old brother Daniel.

2) In 1900, a Daniel Reasoner, b. April 1863 in IN is found in Wheatfield Twp., Ingham, MI. Nancy and husband Elmer Warner appear to have been married in Wheatfield Twp., and resided in Ingham Co., so seems like a good chance that Daniel is Nancy's brother and that they are connected with Missouria and Daniel Reasoner of DeKalb IN.

3) Familysearch.org has a Missouri Monroe marrying a Daniel Reasoner in 1843 in DeKalb Co., IN. Her parents are identified as William Monroe and Rachel Knight.
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Reference:

1880 Concord, De Kalb, IN:
Self Daniel Reasoner M 48 Ohio
Wife Missouria Reasoner F 37 IN [?Missouri]
Son Daniel Reasoner M 18 Indiana
Daughter Rachel Reasoner F 16 Indiana
-->Daughter Nancy Reasoner F 14 Indiana
Daughter Nettie Reasoner F 12 Indiana
Daughter Rosa B. Reasoner F 6 Indiana

1890 Cannot find.

1900 Fowlerville, Livingston, MI:
Head Elmer E. Warner M 39 New York
-->Wife Nancy Warner F 34 Indiana
Boarder George Caswell M 26 Michigan
Boarder Elizibeth Grover F 70 New York

1910 Leroy, Ingham, MI:
Head Elmer E. Warner M 48 New York
Wife Nancy H. Warner F 43 Indiana [34]

1920 Leroy, Ingham, MI:
Head Elmer E. Warner M 58 New York
Wife Nancy H. Warner F 53 Indiana
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Census search: Fraya Weiss, 2011.
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Research: Mary E. Warner, 2014.