JOHN BRUCE, born Scotland, died 1748 Winchester Co., VA, his will dated Nov. 4, 1747, married Sarah ? born in Scotland,  It is probable that they had more children then those listed below.
Children:

JAMES, born ca. 1720 George, married Rachel Littler
Margaret, married Richard Carter
Ann, married James McCoy
Mary, married William Albin

JAMES BRUCE SR., born ca. 1720 Scotland, died 1795 probably in VA, married 1744 Margaret McMahon, the possible daughter of William McMahon.
Children:

Lt. William, born Feb. 14, 1745 VA, married (1) ca. 1770 Polly
    Lucas Perciful,
    Married (2) May 21, 1807 Miss Harris.
Elizabeth, born ca. 1748, married Thomas Anderson
Margaret, born ca. 1750 Yohogania Co., VA, died before 1808,
    married ca. 1768 VA, David Cox.
Nancy, married Samuel Perciful
Jane, married William Marshall
JAMES JR., born Apr. 2, 1760 (Twin)
George, born Apr. 2, 1760 (Twin), married Widow Briggs
Sally (Sarah), married Joshua Carman, a Baptist Minister.
Ann, married Samuel Glass.

JAMES BRUCE JR., born Apr. 2, 1760 VA, died Jan. 6, 1835 KY, married 1779, Mary (Polly) Runyan, born May 27, 1761, died Feb. 4, 1836.
Children:

Amy, born Mar. 14, 1780 PA, married Oct. 13, 1795 Nelson Co.,
    KY,  William Reedy
Margaret, born Nov. 29, 1781 PA, married Dec. 21, 1799 Nelson
    Co., KY Geo. Albin.
Piety, born Mar. 30, 1784 PA, Married Jan.  1, 1802 Nelson Co.,
    KY Absolam Albin
Elizabeth, born Oct. 27, 1786 Nelson CO., KY, married Jun. 9, 180?
    Cornelius Westerfield.
MARY (POLLY), born Oct. 25, 1788

MARY (POLLY) BRUCE, born Oct. 25, 1788 Nelson Co., KY, died ca. 1824 Ohio Co., KY, married Mar. 13, 1809 Ohio Co., KY., James  W. Johnston (Johnson), born 1771 PA, died Apr. 7, 1862 Ohio Co., KY.
Children:

A son, born 1805-09
James Jr., born 1809-10 Ohio Co., KY, died Mar. 3, 1874 KY,
    married    Jul. 16, 1833 Debora Tabor
William, born 1810, married before 1830 ?
Cyrus, born 1811-15 KY, married Jun. 4, 1838 Elizabeth Tabor
Jane, born 1811-15 KY, married May 9, 1833 Ambers Tabor
NANCY, born Nov. 17, 1819 KY
A daughter, born 1820-24
Ann, born 1822-23 Ohio Co., KY, died after 1880, married Dec. 14, 1839  KY, Benjamin Gentry
A son, born 1820-24

NANCY BRUCE JOHNSTON, born Nov. 17, 1819 Ohio Co., KY, died Sep. 3, 1903 Olney, Richland Co., IL, married Oct. 19, 1837 Whitesville, Ohio Co.,
KY, Jesse Lee Horsman Sr.
 (See Horsman Family Addendum)

 Ref: (79 a, b, d), (92 e, k, l), (95 ii).