John Cooper Jr 1799–1863
Catalog ID p.321 · Cite this page: njcoopers.com/p/321/
John Cooper Jr was born on 26 May 1799 in Easton, Pennsylvania, the son of John Cooper Sr and Mary (Ervine) Cooper. He married Elizabeth Margaret Evans (1822). He died on 23 Oct 1863 in Coopers Plains, Steuben Co., NY. Nine children are recorded.
Facts
| Event | Date | Place / detail | Certainty | Sources |
|---|---|---|---|---|
| birth | 26 May 1799 | Easton, Pennsylvania | certain | B.58, B.45, I.59 |
| residence | 11 Jul 1860 | Town of Erwin, Steuben Co., New York (post office Coopers Plains) | certain | D.151 |
| occupation | 11 Jul 1860 | Farmer | certain | D.151 |
| death | 23 Oct 1863 | Coopers Plains, Steuben Co., NY | certain | B.58, A.30, B.45, I.59 |
Family
Parents
- Father John Cooper Sr 1765–1851
- Mother Mary (Ervine) Cooper 1772–1850
Spouses
- Elizabeth Margaret (Evans) Coopermarried 5 Jun 1822, Easton PAB.58
Siblings
- Charlotte M. E. (Cooper) Vandeveer 1801–1854
- Elizabeth (Cooper) Paul 1803
- Mary Cooper 1812–1812
- Sarah Ann (Cooper) Randolph 1815–1904
Children
- Francis Erwin Cooper 1829
- Mary Erwin (Cooper) Morse 1831
- John Cooper 1833
- Thomas Wallis Cooper 1837
- Theodore Cooper 1839
- Samuel Erwin Cooper 1841
- Frederic Stephen Cooper 1842–1928
- Charlotte Elizabeth (Cooper) Bryson 1844
- Arthur Erwin Cooper 1848–1909
Family tree
Solid lines and outlines: certain. Dashed: probable or weaker. Open the full tree (four generations)
In the documents
Every published document that names John Cooper Jr, in date order, with what that document itself records.
| Date | Document | Role | What it records |
|---|---|---|---|
| 1796 | B.57 family bible The “Cooper Bible Record” at the New Jersey Historical Society — a 1796 Berriman Bible with two unrelated-looking family records: Side A, Stephen R. Cooper of N… |
mentioned as "John Cooper Jr" |
|
| 1851 | G.94 find a grave memorial Find a Grave memorial 169490858 - Dr John Cooper, Easton Cemetery, Easton, Northampton County, Pennsylvania |
child as "Dr John Cooper Jr" |
|
| 11 Jul 1860 | D.151 federal census 1860 US Federal Census, Schedule 1 - Town of Erwin, Steuben County, New York; post office Coopers Plains; page 59; enumerated 11 July 1860. |
head as "John Cooper Jr" |
residence: 11 Jul 1860, Town of Erwin, Steuben Co., New York (post office Coopers Plains) occupation: 11 Jul 1860, Farmer |
| 1881 | I.207a published history Published county history — Snell & Clayton, History of Sussex and Warren Counties, New Jersey (Philadelphia: Everts & Peck, 1881), two passages about Dr. John C… |
child as "John Cooper" |
2 further documents not published (they may name living people).
Still unknown, and where we have looked
- Burial not yet found.
Documents
- A.30 1865 family agreement, Erwin, Steuben Co., N.Y. — five siblings acknowledge Frederic S. Cooper as their agent for the estate of John Cooper Jr., who died 23 October 1863.
- B.57 The “Cooper Bible Record” at the New Jersey Historical Society — a 1796 Berriman Bible with two unrelated-looking family records: Side A, Stephen R. Cooper of Newark, and Side B, John Cooper Jr's nine children and Arthur Erwin Cooper's seven. Are they one Bible or two?
- G.94 Find a Grave memorial 169490858 - Dr John Cooper, Easton Cemetery, Easton, Northampton County, Pennsylvania
- L.30 Ancestry Tree #4782603 (Robert Wayne Setty owner) — Cooper-FitzRandolph family — Dr. John Lewis Cooper Sr (1765-1851) + 11 children of Daniel Cooper Jr × Nancy Anna Cross + 4 children of Sarah Ann Cooper × Joseph FitzRandolph; KEY DISCOVERY: Dr. John Lewis Cooper Jr (1799-1863) born + died COOPERS PLAINS, STEUBEN, NY = SAME TOWN as Chris Cooper's own documented family Bible line per CLAUDE.md → POSSIBLE Daniel Sr. → Daniel Jr → Dr. John Lewis Sr → Dr. John Lewis Jr → ... → Chris Cooper Y-line connection (subject to Cooper-Coriell Y-DNA constraint per project pr.16 Cooper-Coriell Y-DNA mystery.md)
- L.63 Maintainer Chris Cooper compiler-notes 2026-05-09 on Dr John Cooper Jr 1799-1863 of Coopers Plains Steuben Co. NY = Chris's 4-greats-grandfather + Generation -4 of his documented chain. Synthesizes 8 underlying primary + secondary sources: (1) Marion Springer (Steuben Co. Clerk's Office, Bath NY) deeds + newspaper-clipping research; (2) Stirling Cooper Sr's personal notes 'When Dr. John Cooper, Jr. died in 1863 he left each surviving son and daughter 500 acres of land. His mother, Mary Erwin, had inherited 5,000 acres in New York State'; (3) The Erwin Family book p. 151 + W.W. Clayton, History of Steuben Co., NY (Philadelphia 1879) p. 294 — village-of-Coopers-Plains-founder narrative + 1841 farm-residence at Meads Creek Valley + Conhocton + uncle Dr. John Erwin's military accoutrements bequest; (4) Roberts, 1891 Historical Gazateer of Steuben County — Coopers in Erwin Town 1891 directory; (5) USGenWeb extraction by Dan Wilson of Centennial History of the First Presbyterian Church of Easton PA 1811-1911 — John Cooper signed 1811 founding petition (probably John Sr, possibly John Jr); (6) Dictionary of American Biography Vol II Theodore Cooper entry — 'Both his father and mother were from Pennsylvania'; (7) 1860 Federal Census Erwin Steuben Co. NY July 11 (= [D.151](../D-Federal-Census/D.151.yaml)) full transcription including 2 Irish domestics; (8) Death notices from Steuben County NY newspapers 1797-1884 [LDS Family History Library call number G929.374783 J136de] indexing John Jr's death. NEW catalog datums: John Jr was a Civil-War-era physician (= father of 4 sons in Union Army March 1862); 1841 founding of Coopers Plains village by laying out farm into lots; 500-acre-each-child bequest; Mary Erwin's 5,000-acre NY State land inheritance from her father Col. Arthur Erwin (1726-1791) [B.45](../B-Military/B.45.yaml) Patriot; Steuben County Court bench service; uncle Dr. John Erwin's military-accoutrements bequest.
- D.151 1860 US Federal Census, Schedule 1 - Town of Erwin, Steuben County, New York; post office Coopers Plains; page 59; enumerated 11 July 1860.