Water Monster · Portsmouth, New Hampshire · 1831
NH-1831ID case-6486be351dAdded to map Oct 30, 2026
- Creature
- Water Monster
- When
- 1831to the year
- Where
- Portsmouth, New Hampshireto town level
- Reports
- 4 documents1 independent
The account
A sea serpent was reported seen off Portsmouth, N.H.
Trace the source trail → every document, in time order, and how they connect
We map claims, not creatures: this is what the sources say, not proof. How a case is built
Details
- Creature
- Water Monster
- Where
- Portsmouth, Rockingham County, New Hampshire, United States
mapped to town level · from the report's own words - When
- 1831
- Account
- Not first-hand (retold or reported by someone else)
- Backed by
- 1 independent source (4 documents; copies and reprints are not confirmations)
- Added to map
- Oct 30, 2026
- Case id
- case-6486be351d
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Source trail (1)
Down the rabbit hole → 4 documents, and how they connect
Every link goes to where we found the account. The earliest we found is marked; it is the earliest found, not necessarily the original.
- Image 10 of Waterbury evening Democrat (Waterbury, Conn.), May 27, 1899
Newspaper · 1899-05-27
Earliest found, not necessarily the original.
Further reading
- The Great New England Sea Serpent, J. P. O'Neill (1999)
Account of the 1817 Gloucester sightings and later reports.
Borrow on Internet Archive - On the Track of Unknown Animals, Bernard Heuvelmans (1959)
The founding work of cryptozoology.
Borrow on Internet Archive - Cryptozoology A to Z, Loren Coleman and Jerome Clark (1999)
Encyclopedia of reported creatures.
Borrow on Internet Archive - Abominable Science!, Daniel Loxton and Donald Prothero (2013)
Skeptical history of the Yeti, Nessie and others.
Borrow on Internet Archive
Books we have not reproduced: borrow them free at archive.org. Listing a book is not an endorsement of its claims.