- Age Based or Confirmed by 1850 Federal Census.
Brookhaven, Suffolk, NY, Pg: 165, Roll:M432_601. 1860 Brookhaven, Suffolk, NY, Roll:M653_865. 1870 Brookhaven, Suffolk, NY, Roll:M593_1100, Pg: 418. 1880 New Haven, CT, pg.259D. 1900 Brookhaven, Suffolk, NY; Roll:T623 1165; Pg:8B; ED: 741. 1910 4th District, Brookhaven, Suffolk, NY, Series:T624, Roll: 1081, Pg:145.
- New York Times.
Obituary, 'Capt Nelson DeWick Dead at 97 years', December 28, 1910 pg.9.
- Records of Cedar Hill Cemetery (Port Jefferson Historical Society http://www.longislandgenealogy.com).
- Age Based or Confirmed by 1850 Federal Census.
Brookhaven, Suffolk, NY, Pg: 165, Roll:M432_601. 1860 Brookhaven, Suffolk, NY, Roll:M653_865. 1870 Brookhaven, Suffolk, NY, Roll:M593_1100, Pg: 418. 1880 New Haven, CT, pg.259D.
- Barber, Gertrude A, Deaths taken from "The Republican Watchman" : a newspaper published every Saturday morning at Greenport, Suffolk County, N.Y. (1949).
- Records of Cedar Hill Cemetery (Port Jefferson Historical Society http://www.longislandgenealogy.com).
- Age Based or Confirmed by 1850 Federal Census.
Brookhaven, Suffolk, NY, Pg: 165, Roll:M432_601. 1880 New Haven, CT, pg.259D.
- Ibid.
Brookhaven, Suffolk, NY, Pg: 165, Roll:M432_601. 1860 Brookhaven, Suffolk, NY, Roll:M653_8658. 1880 New Haven, CT, pg.259D.
- Ibid.
Brookhaven, Suffolk, NY, Pg: 165, Roll:M432_601. 1870 Brookhaven, Suffolk, NY, Roll:M593_1100, Pg: 418.
- Ibid.
Brookhaven, Suffolk, NY, Pg: 165, Roll:M432_601. 1870 Brookhaven, Suffolk, NY, Roll:M593_1100, Pg:416. 1880 Port, Jefferson, Suffolk, NY, pg.71B. 1910 4th District, Brookhaven, Suffolk, NY, Series:T624, Roll:1081, Pg:135.
- Ibid.
Brookhaven, Suffolk, NY, Pg: 165, Roll:M432_601. 1870 Brookhaven, Suffolk, NY, Roll:M593_1100, Pg: 418.
- Ibid.
Brookhaven, Suffolk, NY, Pg: 165, Roll:M432_601. 1860 Brookhaven, Suffolk, NY, Roll:M653_865. 1870 Brookhaven, Suffolk, NY, Roll:M593_1100, Pg: 418. 1900 Brookhaven, Suffolk, NY; Roll:T623 1165; Pg:8B; ED: 741. 1910 4th District, Brookhaven, Suffolk, NY, Series:T624, Roll: 1081, Pg:145. 1920 Brookhaven, Suffolk, NY, Roll:T625_1268, Page:15A, ED: 93.
- New York Times.
Obituary, 'CHARLES L DEWICK, Retired Sea Captain Served on Union Boats in Civil War', February 20, 1937, pg.17.
- Births, Marriages and Deaths, Suffolk County, Long Island, N. Y. 1847, 1848, 1849 (Brookhaven) (Suffolk County Historical Society Register, Vol.XVII, No.1-4, 1992, pg.11-16, Vol.XVIII, No.1, 1992, p.8-18, Vol.XVIII, No.2, 1992, pg.41-49, Vol.Vol.XVIII, No.3, 1992, pg.77-84).
- Age Based or Confirmed by 1850 Federal Census.
Brookhaven, Suffolk, NY, Pg: 165, Roll:M432_601. 1860 Brookhaven, Suffolk, NY, Roll:M653_865. 1870 Brookhaven, Suffolk, NY, Roll:M593_1100, Pg: 418. 1880 New Haven, CT, pg.259D. 1910 4th District, Brookhaven, Suffolk, NY, Series:T624, Roll: 1081, Pg:145. 1920 Brookhaven, Suffolk, NY, Series:T625, Roll:1268, Pg:90.
- Births, Marriages and Deaths, Suffolk County, Long Island, N. Y. 1847, 1848, 1849 (Brookhaven) (Suffolk County Historical Society Register, Vol.XVII, No.1-4, 1992, pg.11-16, Vol.XVIII, No.1, 1992, p.8-18, Vol.XVIII, No.2, 1992, pg.41-49, Vol.Vol.XVIII, No.3, 1992, pg.77-84).
- Age Based or Confirmed by 1850 Federal Census.
Brookhaven, Suffolk, NY, Pg: 165, Roll:M432_601. 1860 Brookhaven, Suffolk, NY, Roll:M653_865. 1870 Brookhaven, Suffolk, NY, Roll:M593_1100, Pg: 418. 1880 Port Jefferson, Suffolk, NY, pg.71B. 1910 4th District, Brookhaven, Suffolk, NY, Series:T624, Roll:1081, Pg:135. 1920 Brookhaven, Suffolk, NY, Series: T625, Roll:1268 Pg:44.
- Age Based or Confirmed by 1860 Federal Census.
Brookhaven, Suffolk, NY, Roll:M653_865. 1870 Brookhaven, Suffolk, NY, Roll:M593_1100, Pg: 418. 1900 Jamaica District, Middlesex, Virginia, Series: T623, Roll:1717, Pg:203. 1910 Jamaica, Middlesex, Virginia, Series:T625, Roll: 1898, Pg:17. 1930 Jamaica, Middlesex, Virginia, Series:T626, Roll:2451, Pg:13.
- Ibid.
Brookhaven, Suffolk, NY, Roll:M653_865. 1880 New Haven, CT, pg.259D. 1900 Brookhaven, Suffolk, NY; Roll:T623 1165; Pg:8B; ED: 741. 1910 4th District, Brookhaven, Suffolk, NY, Series:T624, Roll: 1081, Pg:145.. 1920 Brookhaven, Suffolk, NY, Roll:T625_1268, Page:15A, ED: 93.
- Records of Cedar Hill Cemetery (Port Jefferson Historical Society http://www.longislandgenealogy.com).
- Age Based or Confirmed by 1860 Federal Census.
Brookhaven, Suffolk, NY, Roll:M653_865. 1870 Brookhaven, Suffolk, NY, Roll:M593_1100, Pg: 418.
- Ibid.
Brookhaven, Suffolk, NY, Roll:M653_865. 1870 Brookhaven, Suffolk, NY, Roll:M593_1100, Pg: 418.
- Records of Cedar Hill Cemetery (Port Jefferson Historical Society http://www.longislandgenealogy.com).
- Age Based or Confirmed by 1870 Federal Census.
Brookhaven, Suffolk, NY, Roll:M593_1100, Pg: 418. 1880 New Haven, CT, pg.259D.
- Age Based or Confirmed by 1910 Federal Census.
4th District, Brookhaven, Suffolk, NY, Series:T624, Roll:1081, Pg:139.
- New York Times.
Obituary, 'Capt Nelson DeWick Dead at 97 years', December 28, 1910 pg.9.