I'm a researcher for Marion Co AR and the Historic Genealogical Society of Marion Co AR. Here's what I can tell you from my records.
The MCAR 1860 Federal Census for Jimmys Creek Township.
S M McCracken aged 30 b TN.
Kezziah aged 29 b MS.
John T aged 5 b AR.
George A. aged 2 b AR.
Eli H aged 6 b AR.
Mary J aged 4 b AR.
Martha T aged 2 b AR.
Margarette A aged 1 b AR.
Samuel Marion "S M" McCracken is the son of Elam and Jane "Gencie" (Maxey) McCracken b TN 1830.
Kezziah is Samuel's 2nd wife. Her last name is unknown. His first wife was Nancy Jane Nipps (daughter of Elijah Nipps and his first wife, name unknown) b ca 1840.
The first two children listed, John T and George A, are Kezziah's by her first husband.
The next four children are Samuel's by his first wife, Nancy Jane Nipps, who died in childbirth 1858/9 with daughter Margarette A McCracken. [NOTE: The "A stands for Adeline.]
Both Samuel and Kezziah died before 1870.
The MCAR 1870 Federal Census for Jimmies Creek Township.
Elam McCracken aged 70 b NC.
Jane aged 70 b VA.
Mary Lantz aged 21 b TN.
Eli McCracken 13 b AR.
Mary Jane aged 12 b AR.
Martha aged 10 b AR.
Margaretta aged 9 b AR.
Elam aged 8 b AR.
Mary Susan Lantz b MO 1854 is the daughter of Jane McCracken (daughter of Elam and Jane) and Nicholas Lantz.
Eli Henry McCracken is the son of Samuel Marion and Nancy Jane (Nipps) McCracken b MCAR Dec 1854.
Mary Jane McCracken is the daughter of Samuel Marion and Nancy Jane (Nipps) McCracken b MCAR Dec 1855.
Martha Tennessee McCracken is the daughter of Samuel Marion & Nancy Jane (Nipps) b MCAR April 1957.
Margarette Adeline McCracken is the daughter of Samuel Marion and Nancy Jane (Nipps) McCracken b MCAR 1858/9. Her mother died when she was born.
Elam S McCracken is the son of Samuel Marion and Kezziah (___) McCracken b MCAR 1862.
Sorry I don't know anything about David Carr - there seems to be no record of him in MCAR, but hope the rest of this is helpful to you.