| 12 Washington Street – c. 1850 (18 Washington Street on assessor’s map) |
| From | To | Date | Book/Page | Notes |
| Amariah Taft | Hannah Leland | 08/28/1843 | 000384/271 | Land only |
| Ezra Leland Hannah Leland |
George Rawson | 03/31/1845 | 000398/131 | Portion of deed above |
| Ezra Leland Hannah Leland |
George Rawson | 01/01/1846 | 000412/314 | Land only |
| James Arnold | George Rawson | 11/03/1849 | 000455/410 | Land only; one undivided half interest |
| Waty Arnold | George Rawson | 11/03/1849 | 000455/411 | Land only; one undivided half interest |
| George Rawson Lois Rawson |
George W. Wilcox | 12/07/1857 | 000589/583 | |
| Willard Wilcox | William P. Whiting | 10/01/1863 | 000671/345 | Willard Wilcox, father of George W. Wilcox (d. 1862) |
| William P. Whiting | Charles B. Congdon | 11/01/1890 | 001337/345 | |
| Charles B. Congdon | Annie A. Congdon | 10/28/1896 | 001536/148 | |
| Annie A. Congdon | Robert P. Congdon Helen A. Congdon |
03/30/1946 | 002993/192 | House is on Parcel 1 |
| Annie A. Congdon | Robert P. Congdon Helen A. Congdon |
03/30/1946 | 003009/316 | Amendment to previous deed |
| Helen A. Congdon | Dawn M. Lefrancois Trustee of the Congdon II Nominee Trust |
06/09/2016 | 055455/103 | Portion of deed above |
| Dawn M. Lefrancois Trustee of the Congdon II Nominee Trust |
Hastings Street Plaza LLC |
06/11/2020 | 062576/072 |
Supporting Documents: