WASHINGTON DC



Decatur House

Library of Congress,  HABS DC,WAS,28--11

Decatur House, Jackson Place, Washington DC  (38.900065, -77.038446)

(a) Slave Quarters Felling dates: Summer 1817, Winter 1820/1

(a) Floor joists (1/9) 1808; Struts (0/2); Studs (1/2) 1820 (C); Rafters (2/4) 1820 (C); Ceiling joists (2/3) 1810, 1816 (1/2C). Site Master 1713-1820 (pine) DTRx1 (t = 7.10 SUNAx1; 6.66 VAPINE; 6.16 SJC). 

The structure comprising the Slave Quarters at Decatur House is a two-story building located behind the main house. Dendrochronological analysis has shown that the original four-bay structure was built in the winter of 1820/1 or shortly thereafter.


Worthington, M J and Seiter, J I 2012 The Tree-Ring Dating of the Slave Quarters at Decatur House, Jackson Place, Washington DC unpublished Oxford Tree-Ring Laboratory archive report 2012/05.