O’Brien family of Machias, Maine
E421802
The O’Brien family of Machias, Maine is a prominent early American family best known for its role in the first naval engagement of the American Revolutionary War and its leadership in local Patriot resistance.
All labels observed (2)
| Label | Occurrences |
|---|---|
| O’Brien family of Machias, Maine canonical | 2 |
| O'Brien family of Machias, Maine | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4233108 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: O’Brien family of Machias, Maine Context triple: [Jeremiah O’Brien, hasRelative, O’Brien family of Machias, Maine]
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A.
Bowdoin family
The Bowdoin family is a prominent New England lineage known for its political influence, mercantile wealth, and association with Bowdoin College in Maine.
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B.
Quincy family of Massachusetts
The Quincy family of Massachusetts was a prominent New England political and mercantile dynasty influential in colonial and early United States history.
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C.
Bigelow family
The Bigelow family is a prominent family whose legacy and contributions were significant enough to have the Bigelow Chapel named in their honor.
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D.
Lowell family
The Lowell family is a prominent New England dynasty known for its influential roles in American literature, education, law, and public life from the 18th through the 20th centuries.
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E.
Massey family
The Massey family is a prominent Canadian family known for its significant contributions to industry, philanthropy, and the arts, including major support for cultural and educational institutions.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: O’Brien family of Machias, Maine Target entity description: The O’Brien family of Machias, Maine is a prominent early American family best known for its role in the first naval engagement of the American Revolutionary War and its leadership in local Patriot resistance.
-
A.
Bowdoin family
The Bowdoin family is a prominent New England lineage known for its political influence, mercantile wealth, and association with Bowdoin College in Maine.
-
B.
Quincy family of Massachusetts
The Quincy family of Massachusetts was a prominent New England political and mercantile dynasty influential in colonial and early United States history.
-
C.
Bigelow family
The Bigelow family is a prominent family whose legacy and contributions were significant enough to have the Bigelow Chapel named in their honor.
-
D.
Lowell family
The Lowell family is a prominent New England dynasty known for its influential roles in American literature, education, law, and public life from the 18th through the 20th centuries.
-
E.
Massey family
The Massey family is a prominent Canadian family known for its significant contributions to industry, philanthropy, and the arts, including major support for cultural and educational institutions.
- F. None of above. chosen
Statements (39)
| Predicate | Object |
|---|---|
| instanceOf |
American coastal vessel
ⓘ
American family ⓘ historical family ⓘ naval engagement ⓘ person ⓘ person ⓘ person ⓘ person ⓘ person ⓘ person ⓘ |
| activity |
local militia leadership
ⓘ
maritime operations against British shipping ⓘ |
| associatedEvent | Battle of Machias ⓘ |
| associatedVessel |
Unity (sloop)
ⓘ
linked to:
Unity (American sloop)
|
| country |
United States
ⓘ
linked to:
United States of America
|
| family | O’Brien family of Machias, Maine ⓘ |
| hasMember |
Dennis O’Brien
ⓘ
Gideon O’Brien ⓘ Jeremiah O’Brien ⓘ John O’Brien ⓘ Joseph O’Brien ⓘ William O’Brien ⓘ |
| heritage | Irish-American ⓘ |
| historicalEra |
American Revolutionary period
ⓘ
linked to:
American Revolutionary era
|
| knownFor |
leadership in local Patriot resistance during the American Revolution
ⓘ
role in the first naval engagement of the American Revolutionary War ⓘ |
| legacy | symbol of early American naval resistance in New England ⓘ |
| locatedIn | Machias, Maine ⓘ |
| militaryConflict | American Revolutionary War ⓘ |
| notableFor |
commanding Patriot forces in the capture of the British schooner Margaretta
ⓘ
often cited as the first naval engagement of the American Revolutionary War ⓘ participation in Patriot resistance at Machias ⓘ participation in early Revolutionary naval actions at Machias ⓘ participation in the capture of the British schooner Margaretta ⓘ used by Jeremiah O’Brien and others in the capture of the Margaretta ⓘ |
| placeOfActivity | Machias, Maine ⓘ |
| politicalAlignment | Patriot ⓘ |
| regionOfInfluence |
Down East Maine
ⓘ
linked to:
Downeast Maine
|
| role | sea captain ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: O’Brien family of Machias, Maine Description of subject: The O’Brien family of Machias, Maine is a prominent early American family best known for its role in the first naval engagement of the American Revolutionary War and its leadership in local Patriot resistance.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
DD-415
linked to: O’Brien family of Machias, Maine
subject linked to:
O’Brien family of Machias, Maine