born between 1778-1783, either Pennsylvania or New Jersey
died after 1864, possibly Seneca county, Ohio

Married Mary Chamberlin, daughter of Godfrey Chamberlin and Mercy Moore

John and Mary had ten children. The children's birth dates (listed below) are from a 1906 transcription of their daughter Angeline Lightcap Lawrence's family bible. Any issues with the dates are noted.

Transcription made by Angeline's son Donald Lawrence for an investigator from the Department of Interior who was investigating pension claims of his uncle Isaac Bateman Lightcap's two wives.

Children:
William Lightcap -
b.14 Apr 1813
m. Elizabeth Boarder

Godfrey C S Lightcap -
b.01 Dec 1814, New Jersey
d.20 Jan 1888, Franklin, Warren County, New Jersey
m1. Margaret Hulshizer, daughter of Abraham Hulshizer and Rebecca Thompson
m2. Mary Delilah Creveling, daughter of Henry Creveling and Mary Hulsizer

Eleanor "Ellen" Lightcap Jones Lawrence -
b.15 Nov 1816, New Jersey
m1. Samuel Jones
m2. John Lawrence

Robert Henry Lightcap -
b.19 Aug 1819, New Jersey
m. Lucretia Halsey

Levi Lightcap -
b.19 Jun 1821, Hunterdon county, New Jersey (his headstone lists 1822 as birth year)
m. Mary Smith, daughter of Christian Smith and Rebecca Firestone

Angeline "Ann" Lightcap Lawrence -
b.01 Jun 1824, Hunterdon County, New Jersey (her headstone lists 1825 as birth year)
m. George R. Lawrence

Holoway W Lightcap -
b.07 Oct 1826, Hunterdon county, New Jersey (his death certificate lists 03 Oct 1826)
m. Ellen Miriam Westgate, daughter of Moses Weld Westgate and Alice Brooks

Augustus G Lightcap -
b.17 Dec 1828, Hunterdon County, New Jersey (his headstone lists 1831 as birth year)
m. Mary Jane Young

Isaac Bateman Lightcap -
b.04 Apr 1831, Hunterdon County, New Jersey
m1. Martha Maria Gillett, daughter of Solomon Gillett and Nancy M. Frost
m2. Emily Hair (marriage invalid since he never divorced Martha)

Mary Jane Lightcap Brooks -
b.21 Nov 1834, Seneca county, Ohio
m. Samuel Jarvis Brooks, son of Jonathan Brooks and Rebecca King