Unless indicated below, this is a transcript of the original Society for the Preservation of Long Island Antiquities/Town of Brookhaven survey form. Since most of the surveys were conducted in the late 1970’s and early 1980’s, much of the information reflects that time period.

Corrections to obvious typographical and spelling errors have been made. Corrections to factual errors in the original surveys, and updates or comments on the information are either enclosed in [square brackets], or are clearly indicated as updated material from the context of the comments.

Sites with an Inventory Code suffix of “S” are supplemental sites not included in the original surveys.


Isaac Seaman house

 If checked, this is a Supplemental Form, not in the original surveys.

Inventory Code:   Br09C 
Prepared Date:   1975-03-10 
Last Modified:   1970-01-01 
Original Submitter
Submitter Name:   Mrs. Paul W. Bigelow
Submitter Address:   7 Thornhedge Road

Bellport, NY 11713  
Organization:   Bellport-Brookhaven Historical Society
1-Building/Site Name:   Isaac Seaman house 
2a-County:   Suffolk    2b-Town:   Brookhaven    2c-Village:   Hamlet of Brookhaven
3-Street Location:    
 4a-Public    4b-Private
5a-Present Owner:   Stephen Deupra 5b-Address:   

6a-Original:   private home

6b-Present:   same

 7a-Visible From Road

 7b-Interior Accessible
7b-Interior Comment:   
Building Materials



 8d-Board & Batten



8-Other:   painted yellow
Structural System
 9a-Wood Frame Interlocking Joints    9b-Wood Frame Light Members:   9c-Masonry:
9d-Metal Comment:   
 9e-Other Comment:   
   10a-Excellent   10b-Good   10c-Fair    10d-Deteriorated
  11a-Original Site  11b-Moved If so, when?
11c-Alterations:   Front section original  «»
Photo & Map
12-Photo Photos and images
[Threats were not evaluated in the original South Shore Estuary Survey.  They are an evaluation by J. Deitz]
  14a-None Known:   14b-Zoning   14c-Roads
  14d-Developers   14e-Deterioration
Related Outbuildings and Property
 15a-Barn  15b-Carriage House  15c-Garage
 15d-Privy  15e-Shed   15f-Greenhouse
 15g-Shop  15h-Gardens   15i-Landscape Features
15i-Landscape Features:   
Surroundings of the Building
 16a-Open Land  16b-Woodland  16c-Scattered Bldgs.
 16d-Densely Built-up  16e-Commercial  16f-Industrial
 16g-Residential 16h-Other:   
Interrelationship of Building and Surroundings
Other Notable Features of Building and Site
18-Notable Features:      «»
19-Initial Const Date:   1830 [date unlikely, see supplemental material]  
19-Builder: Said to be Isaac Seaman [see supplemental material].  
Historic and Architectural Importance
20-Importance:    «»
21-Sources: Interview with Mrs. Edward Ljungquist, former owner, December 1974, also Mrs. Marjorie Worth, nee Smith, born in this house. On Brookhaven 1873 map "I.W. Seaman" «»
Prepared By: 
Supplemental Material:
  [If constructed in 1830 as recorded on the original survey form, it could not have been built by Isaac Seaman. Isaac was born in about 1832. In both the 1850 and 1860 censuses, he was living with his parents, Abraham (b. abt 1808) and Mary Seaman. On the 1873 map of Brookhaven Hamlet, the I. W. Seaman's property (Br09C) is shown adjacent to A. F. Seaman (Br09D), to the north. A. F. is undoubtedly his father. The 1858 map does not indicate any Seaman properties in the Hamlet, so this source is not helpful (many known residents of 1858 are not indicated). The original survey form does not indicate from where the construction date was derived (perhaps the interviews?). The1840 U.S. census record was the earliest indication of a "Seaman" living in Fire Place, Town of Brookhaven--that of the Abraham Seaman family. U.S. census records from 1790 forward were examined, including the indexes for the Town of Brookhaven, and the detailed enumeration records of the area between Bellport and Mastic, and no "Seamans", or possible alternate spellings of the name, were found, either in the indexes, or the examined detailed pages. (While the enumeration pages did not themselves define the area, the examined pages were selected based on names of families known to have been residents of the area.) Although some local history commentators have indicated that the Seaman family first settled in Fire Place as early as 1779, the census enumerations do not support this conclusion. Most likely, this house was built by Isaac Seaman, constructed after 1860 and before 1873.]