1900 Census, Garfield Twp., Clay Co., South Dakota:
Born Dec. __, 1898.
Father: Vincent b. Nov 1871 in Iowa - or (Thomas V. in 1930)
Mother: Mary (__) b. Apr 1879 in South Dakota
*Agnes was the oldest (unless one infant died earlier).
*From the obit of the last surviving child, Marie (O'Connor) Muhlenkort, there were 10 children in this family. See 1920 & 1930 Census for names.

Agnes O'Connor of Burbank, Clay Co., SD-maiden-married Joseph Knippling of Gann Valley, Buffalo Co., SD, April 15, 1925 at Beresford, Union Co., SD
by Rev. J.D. Kirley, Catholic Priest.
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Evening Huronite-Huron, SD May 15, 1929
GANN VALLEY, May 15.-(Special)
Mrs. Joe Knippling is now at home after being a patient in a hospital at Rochester, Minn., for almost a year. She is much improved in health since she underwent a major operation a couple of months ago. After recuperating at home for a while, she plans to return to Rochester for another operation.
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August 13, 1929 edition:
GANN VALLEY, Aug. 13. (Special)
Word has been received of the death of Mrs. Joe Knippling at Rochster, Minn. Mrs. Knippling underwent a serious operation there a week ago.
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August 15, 1929 edition:
A large number of friends and relatives attended the funeral services which were held for Mrs. Joe Knippling at the Duncan Catholic church. Mrs. Knippling was unable to survive a critical operation which was performed at Rochestrer, Minn. two weeks ago.
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Minnesota, Death Index, 1908-2002:
Mrs. Joseph (Agnes) Knippling
Death Date: 12 Aug 1929
Death County: Olmsted
State File Number: 010491
Certificate Number: 010491
Certificate Year: 1929
Record Number: 543861
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Also recorded in South Dakota Death Index:
South Dakota Death Index, 1905-1955 about Agnes P Knippling
Name: Agnes P Knippling
Certificate Number: 125788
Death Day: 12
Death Month: Aug
Death Year: 1929
County: Buffalo
Page Number: 515
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