Thanks to Gone Too Soon for the following info:

Margaret FitzGibbon Badger was the daughter of Dr George Edmund Badger (1838-1883) and Eliza Ann (FitzGibbon) Badger Selby (1857-1903)

She married Charles F Whitner Sr on 17 Oct 1901

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1944 Atlanta City Directory
Whitner, Marg B (wid Chas)
Whitner, John S (Jane H; John C Whitner & Co)
Whitner, Charles F Jr (Lillian A; Whitner & Co)
Whitner, Henry F (John C Whitner & Co)
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1940 US Federal Census
Atlanta, Fulton, Georgia

Charles F Whitner Age 68 GA
Ins Agent
Margaret B Age 61 (1879) NJ
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1930 US Federal Census
Atlanta, Fulton, Georgia

Charles, Margaret and John S
Charles and John – Agents in Fire Ins
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1920 US Federal Census
Atlanta, Fulton, Georgia
Charles, Margaret and Charles J, John S
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1910 US Federal Census
Atlanta, Fulton, Georgia

Charles F Whitner Age 38 (1872) GA
General Agent – Fire Insurance
Wife: Margaret B Age 32 (1878) NJ
Father NC Mother PA

Sister-in-law: Allison L Badger Age 27 (1883) PA
Brother-in-law and Sister-in-law: Gerald Selby Age 21 (1889) PA
Dorothy Selby Age 18 GA (their Father MD and Mother PA)

Children: Charles F Whitner Jr (1903) GA
And John Selby Whitner (1904) GA
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1900 US Federal Census
Atlanta, Fulton, Georgia

John W Selby Age 70 (Jul 1829) Born in Maryland
Manager of Dental Depot Parents born in MD
Wife: Eliza A Age 42 (Nov 1856) Born in PA
Father NY Mother Ireland
Married 12 years 7 children 4 still alive

Children: Gerald (Apr 1890) PA; Dorothy (Dec 1891) GA
Eliza’s children: Margaret Badger (Apr Apr 1878) NJ and
Dorothy Badger (Dec 1891) GA
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Eliza A (FitzGibbon) Badger married J W Selby in 1888 in Baltimore
Dr George Edmund Badger died in 1883
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1880 US Federal Census
New York City, New York, NY

George Badger Age 42 (1838) NC
Medical Doctor
Wife: Eliza Age 24 (1856) PA

Daughter: Maggie (1878) NJ
Mother in law: Emma Fitzgibbon Age 45 (1835) NJ
Widowed
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From the book published in 1916 "Abbe -Abbey Genealogy In Memory of John Abbe and his Descendants" by Cleveland Abbe and Joseph Genung Nichols

Dr George Edmund Badger (a practicing physician and surgeon in the Confederate Army)
and Eliza A. FitzGibbon

Their 1st child was: Margaret FitzGibbon Badger, b. April 15, 1878, resides in Atlanta, Ga., m. Oct. 17, 1901, Charles F. Whitner and has two children, Charles F., Jr., b. Aug. 9, 1902, and John Selby, b. Sept. 22, 1903