Ancestry Family Tree, 'Nathan Cooper* younger 1725-1797' (tree 63696121, person 212088044262, accessed 27 May 2026)

Transcription and notes

Filename: (image held in the family archive) (2 pages)

Identification

Ancestry Family Tree. Tree ID 63696121 (= same tree as L.120, L.121). Person ID 212088044262. URL: https://www.ancestry.com/family-tree/person/tree/63696121/person/212088044262/facts (accessed 5/27/26 9:45 AM).

Epistemic grade: Ancestry tree — low confidence. 5+ source citations for the subject (incl. NJ Abstract of Wills 1670-1817 + NA Family Histories + US Marriage Records + Find A Grave Index). 1-3 sources for individual relationships.

Data from the document — Nathan Cooper* younger [verbatim, structured]

= [[p.461 Nathan Cooper II 1725-1797]] (catalog name; tree calls "younger")

• Birth: 22 February 1725 Southampton, Suffolk County, New York, USA [2 sources] — matches G.188 + Chambers I.138 + Seward I.139
• Death: 30 Dec 1797 Chester Morris NJ [3 sources]
• Burial: Chester Morris NJ [1 source]
• Marriage: 1748 Roxbury Morris NJ to Mehetabel Seward Cooper 1730-1812 [[p.464]] [1 source]

Parents

• Father: Nathan Cooper elder 1696-1788 [[p.462]] d. 12 Jul 1788 Roxbury Morris NJ
• Mother: Mary Miller 1700-1787 d. 7 Jul 1787 Jockey Hollow Farm Morris NJ — NEW datum: Mary Miller died at Jockey Hollow Farm (= the famous Continental-Army-encampment site of Morristown 1779-1780); primary-source-locatable

Siblings of Nathan II (per tree)

• Mary Cooper 1718-1787 d. 7 Jul 1787 Morristown — tree says 1718 birth; Chambers I.138 says "Mary, bap. East Hampton, 1724" — 6-year discrepancy
• Elizabeth Cooper 1724-1787 d. 7 Jul 1787 Morristown — Chambers says "Elisabeth, bap. East Hampton, 1734" — 10-year discrepancy
• Hannah Cooper b. 24 Mar 1727 East Hampton NY — matches Chambers I.138 "HANNAH, bap. 1728" within 1-year window
• Henry Cooper b. 29 Oct 1733 Mendham Morris NJ d. 1819 — NEW PRIMARY-LOCATION ATTESTATION: Henry Cooper of Mendham Morris NJ = matches [[name.199 Henry Cooper]] A.33 #17 docket 1755N Will 1819. Promoted to [[p.503 Henry Miller Cooper 1733-1819]] 2026-05-27 v233.
• Davenport Cooper 1720-1789 d. 11 Jan 1789 — Davenport is named in A.15 Nathan II's 1797 will body (per J.36 reading: "Davenpoort"). NEW DoB attestation = 1720.
• Samuel Cooper* Sr. d. 1825 [[p.472]] (= the Samuel m. Betsey Brown per L.120)

= 7 siblings of Nathan II + Nathan II himself = 8 children of Nathan I × Mary Miller documented. Chambers I.138 listed 6 children (Mary 1724 + Nathan 1725 + Hannah 1728 + Elisabeth 1734 + James + Moses). L.122 expands roster with Henry + Davenport + Samuel Sr, but adds Mary 1718 + Elizabeth 1724 (= 2 sisters with different DoB than Chambers).

The "Mary 1718" + "Elizabeth 1724" tree pairs may be DIFFERENT individuals from Chambers's "Mary bap. 1724" + "Elisabeth bap. 1734" — = possibly an unrelated Mary 1718 + Elizabeth 1724 confused into Nathan I × Mary Miller's family.

OR the tree-maker has the dates wrong. Catalog should treat as possible until primary-source-resolved.

Three sisters all d. 7 Jul 1787 NJ

Tree shows Mary 1718 + Elizabeth 1724 + Mary Miller (mother) ALL died on the same date — 7 July 1787: - Mary Cooper 1718-1787 d. 7 Jul 1787 Morristown Morris Co. NJ - Elizabeth Cooper 1724-1787 d. 7 Jul 1787 Morristown Middlesex Co. NJ - Mary Miller (mother) 1700-1787 d. 7 Jul 1787 Jockey Hollow Farm Morris NJ

Same-date triple-death = HIGHLY UNUSUAL. Possible explanations: - (a) Tree-maker error (= cascade-copying one death date) - (b) Real triple-death event (= illness, accident, fire) — unusual but possible - (c) Mass-grave commemoration date (= all 3 stones share a common inscription date)

Flag for primary-source verification (= Morristown NJ death/burial records July 1787; Jockey Hollow cemetery records).

Marriage + Children of Nathan II × Mehitabel Seward

Per tree: - Nathan III 1751 [[p.465]] - Elizabeth ~1755 - Mary 1756 Sussex [[p.466]] - Joseph 1760 Milton [[p.470]] - Abraham 1762 [[p.468]] - Mehetabel ~1768 [[p.467]] - Samuel Sr. d. 1825 [[p.472]]

No "Davenport" in Nathan II's children-roster (= Davenport was Nathan II's brother, not son; matches A.15 reading).

Catalog significance

HENRY COOPER OF MENDHAM 1733-1819 = NATHAN II's BROTHER = primary-source-attestation links [[name.199 Henry Cooper]] (= A.33 #17 docket 1755N) to fam.2 patriarch family. Promoted to [[p.503 Henry Miller Cooper 1733-1819]].

DAVENPORT COOPER 1720-1789 = NEW DoB for the Davenport mentioned in A.15 Nathan II's 1797 will. Likely the eldest brother of Nathan II (b. 1720 vs Nathan II b. 1725 = 5-yr senior).

MARY MILLER COOPER 1700-1787 = NEW DoD 7 Jul 1787 + place "Jockey Hollow Farm". Updates [[p.463 Mary Miller Cooper]].

8 Nathan I × Mary Miller children documented at NEHGS-tier — extends Chambers's 6-child Nathan I roster.

Follow-ups

• Pull Mendham Morris NJ probate 1819 Henry Cooper docket 1755N (= primary-source confirms Henry = Nathan II's brother)
• Verify Mary 1718 + Elizabeth 1724 + Mary Miller 1787 triple-death-date — primary-source Morristown NJ deaths July 1787
• Primary-source Davenport Cooper 1720-1789 — possibly Morris Co. NJ probate
• Locate "Jockey Hollow Farm" Cooper-family-residence — 1787 Continental Army camp area + Cooper land?