- 1850 Huntington Census.
- 1860 Huntington Census.
- 1870 Huntington Census.
- 1880 Oxford Census.
- 1900 Oxford Census.
- 1910 Oxford Census.
Farmer.
- 1900 Oxford Census.
- Charles Elwell, 1935 WPA Headstone Inscriptions - Brookside Cemetery, 44.
Beardsley, Thaddeus C.,----------
Beardsley, Sarah J. Whitlock, wife of Thaddeus C., died Aug. 26, 1892, age 44 yrs.
Beardsley, Louisa M. Curtiss, wife of T. C., died Jan. 24, 1917, age 55 yrs.
- Ibid., 44.
no dates are given for Thaddeus on WPA list.
- Brookside Cemetery Photograph - Oxford, CT.
- 1870 Monroe Census.
- 1880 Oxford Census.
- 1910 Oxford Census.
- 1900 Oxford Census.
- Charles Elwell, 1935 WPA Headstone Inscriptions - Brookside Cemetery, 44.
Beardsley, Thaddeus C.,----------
Beardsley, Sarah J. Whitlock, wife of Thaddeus C., died Aug. 26, 1892, age 44 yrs.
Beardsley, Louisa M. Curtiss, wife of T. C., died Jan. 24, 1917, age 55 yrs.
- Ibid., 44.
- Brookside Cemetery Photograph - Oxford, CT.