Morgan Co. marriage register book 1, p. 11, records marriage license issued on 16 Sep 1828 to Jacob Hall and N ancy Brown, no return.

1830 census of Morgan Co., KY, lists on p. 59, line 3:
Jacob Hall, 1 m < 5, 1 m 20-29, 1 f 15-19.

1840 census of Morgan Co., KY, lists on p. 310, line 12:
Jacob Hall, 2 m 10-14, 1 m 30-39, 1 f < 5, 2 f 5-9, 1 f 20-29.

1850 census of Morgan Co., KY, records on p. 105, family #262:
Jacob Hall, 44, farmer; Nancy, 39; Isaac, 19; Mary, 17; Lucinda, 15; Elizabeth, 10; John, 8; Sarah, 5; Adeline, 2; Martha, 1. All born in KY.

1860 census of Morgan Co., KY, lists family #46:
Jacob Hall, 54; Nancy, 49; John, 18; Sarrah, 17; Adaline, 12; Martha, 11; Jesse, 7; Emily, 5. All born in Kentucky.

1870 census of Rowan Co., Ky, Pine Grove Prec., p. 7/133, family #49:
Jacob Hall, 62, farmer; Nancy, 58; Martha, 21; Jesse, 16; Emily, 14; Nancy Pettit, 8; Lucinda Coggswell, 30, domestic servant; Lucinda Coggswell, 10/12, b. Aug; Wm Cassidy, 25, farm laborer; Frances Cassidy, 6/12, b. Nov. All born in KY. Nancy Pettit is the daughter of Benjamin Pettit and Polly Ann Hall, which would make her a granddaughter of Jacob & Nancy. Judging by the birth dates of Benjamin's children, it is likely that Polly Ann died at Nancy's birth or shortly thereafter, and Benjamin did not remarry until about 1868/69, so Jacob & Nancy raised Polly's baby.

1880 census of Rowan Co., Ky, Pine Grove precinct, lists as family #195:
Jacob Hall, 74; Nancy, 69; Nancy C. (granddaughter), 17.

Note that Nancy (nee Pettit) has switched to her grandparents’ surname. All births are listed as Ky Va Va, but the younger Nancy’s parents were really both born in Kentucky.