Joseph Caldwell was the eldest child of Robert Caldwell and Sarah Porter, born c1815-1817 in Ireland, but who emigrated to Canada with his parents and brother between 1819 and 1821.
Joseph married Mary Ann Brown, born c1817, also in Ireland, c1842, likely in Queens, New Brunswick, Canada. Her parents are unknown.
Joseph and Mary Ann were the parents of six children:
- Sarah Ann, born 24 August 1843, Queens, New Brunswick, Canada; died 29 January 1928, Coal Creek, Queens, New Brunswick, Canada; married Moses Estey Weaver, 2 November 1870, Queens County, New Brunswick, Canada
- Isabella, born c1845, Queens, new Brunswick, Canada; died between 1817-1881 censuses; married Mathew Hutchins, 2 September 1866, Queens, New Brunswick, Canada
- Susanna, born c1847; died after 1871 when she was at home; no further record
- Robert William, born 8 October 1850, Queens, New Brunswick, Canada; died between 1801 and 9 October 1912, when his wife married (2) George Robert Baxter of St. John, New Brunswick, Canada; married Melissa Caldwell, daughter of Robert and Annie (Day) Caldwell/Colwell, c1868. Robert hasn’t been found in the 1911 census
- John, born 12 April 1852, Queens, New Brunswick, Canada; died 20 March 1910, Havelock, Kings, New Brunswick, Canada; married Rachel Henrietta Scribner, 4 July 1894, Kings, New Brunswick, Canada
- Elizabeth, born c1855, Queens, New Brunswick, Canada; died after 1861. She isn’t at home in 1817 and likely died young.
Joseph Caldwell died 21 June 1877, aged 73 years. Mary Ann survived him, but hasn’t been found in records after 14 June 1887, when she and Joseph appeared in the clerk’s office to attest to a deed made on 1 October 1883 whereby they sold land to their son Robert for $1.00.