The Coopers of Long Hill

Document B.77 · published register · transcription: verbatim

Stryker, Records of Officers and Men of New Jersey in Wars 1791-1815, p. 83 — John D. Cooper, SERGEANT, Capt. Alexander Reading's Company, 2nd Regt. N.J. Detailed Militia, Sussex County: enrolled 8 Sept, discharged 5 Dec 1814.

repository
William S. Stryker, N.J. Adjutant-General — printed register
collection
Records of Officers and Men of New Jersey in Wars 1791-1815 (Trenton, 1909), “War with Great Britain, 1812-1815”, book p. 83 = PDF p. 192.
identifier
Reached through a finding aid: the American Genealogical-Biographical Index (Rider Index) vol. 34 p. 178, card “Cooper, John D., b. 1790-1799, War 1812, N.J.” citing “War Recds 1791, 1815, N.J.:83” — i.e. this page.
date
1814

What is transcribed: The full company roster at p. 83.

People named

As writtenRoleIdentified asWhat this document says
John D. Cooper subject John Cooper ?–1850 probable
occupation: between 8 Sep 1814 and 5 Dec 1814, Sergeant, Capt. Alexander Reading's Co., 2nd Regt. N.J. Detailed Militia
Capt. Alexander Reading official
Lieut. Nathaniel Hart official
Ensign Moses Beamer official

What this document records

The index s birth window is not in the record

AGBI gives “b. 1790-1799” and Stryker gives no birth date at all. That window is the index's own estimate, and the entry says so. An index's inference must not be cited as the register's evidence — which is exactly how a soft date hardens into a fact.

What the roster does fix

Rank SERGEANT — third man on the list, above the privates and below the ensign; enrolled 8 Sept 1814, period “Until relieved”, discharged 5 Dec 1814. Sussex County, Capt. Alexander Reading's company, 2nd Regt. N.J. Detailed Militia. A 2nd-Regiment Sussex company of autumn 1814 is the same formation [B.30] found four Coopers in — John D., Abraham, Aaron and William — under the 2 (Seward's) styling.

The officers are worth as much as the men

Capt. Alexander Reading, Lieut. Nathaniel Hart, Ensign Moses Beamer, Sergeants Caleb Valentine and James Fisher. A named company with a named 89-day term is a far better handle than a bare index row.

Transcription and notes

Provenance, the AGBI birth window that is the index's estimate rather than the register's evidence, and what the roster does fix are in the source: and coverage: headers and are not repeated here.

Data from the document [verbatim] — Stryker p.83

"Captain Alexander Reading's Company of Infantry. Second Regiment New Jersey Detailed Militia. Sussex County." — all enrolled Sept. 8, '14, period "Until relieved," discharged Dec. 5, '14:

No. Name Rank
— Alexander Reading Captain
— Nathaniel Hart Lieut.
— Moses Beamer Ensign
1 Caleb Valentine Sergeant
2 James Fisher Sergeant
3 John D. Cooper Sergeant
4 William Ayres Sergeant
1 John Ayres Corporal
2 James King Corporal
3 Jacob Shepherd Corporal
4 William McClain Corporal
— Christopher Morris Drummer
— Joseph Viles Fifer

Adjacent company (Stryker p.85): "Captain William Swayze's Company of Infantry. Second Regiment New Jersey Detailed Militia. Sussex County" — Corporal (#2) Aaron Cooper (= [p.13 Aaron Cooper Sr] per [B.62]). So John D. Cooper and Aaron Cooper served in the same regiment (2nd, Sussex Co.), different companies (Reading's vs Swayze's).

Notes (identification — the record now FAVORS p.113/p.320 over p.129/p.4; still not conclusive)

Both catalog "John D. Cooper" candidates were Sussex-County residents in 1814 (Warren Co. was carved out of Sussex only in 1824), so "Sussex County / 2nd Regt" alone fits either. Two specifics tip the balance:

⇒ Revised lean (supersedes the 2026-07-09 earlier note that favoured p.129/p.4): the record most plausibly belongs to [p.113 John Cooper of Independence] / [p.320 John Cooper of Byram Twp Sussex] (the same-man merge candidates). If so, it primary-source-attests p.113's middle initial "D" — until now only tree-tier ([L.132]) — and adds an 1814 Sussex-County attestation to the p.320↔p.113 identity. Caveats: militia companies were not locality-pure; Hardwick was also Sussex; a third Sussex "John D. Cooper" is not excluded. Not promoted past "probable-leaning."

Cross-references