- [S357] "The Slocum File, PANB", compiled records, to Provincial Archives of New Brunswick (Fredericton, New Brunswick); Provincial Archives of New Brunswick, Fredericton, York County, New Brunswick, Canada. Hereinafter cited as "Slocum File, PANB."
- [S2125] Charlotte C. Muller, compiler, William Cory of Portsmouth, R.I., and his Descendants (Section 1, Early Years) (Self published, 1993). HEREINAFTER CITED AS William Cory of Portsmouth, R.I., and his Descendants.
- [S2503] Ancestry.ca - John Cory - Family Data Collection - Individual Records, online www.ancestry.ca. Hereinafter cited as Ancestry.ca - John Cory - Family Data Collection - Individual Records.
- [S4283] Wikipedia, online http://en.wikipedia.org/wiki/Elizabeth_Plantagenet,_Duchess_of_Exeter. Hereinafter cited as Wikipedia.
- [S4285] Wikipedia, online http://en.wikipedia.org/wiki/John_Fitzalan,_14th_Earl_of_Arundel. Hereinafter cited as Wikipedia.
- [S4329] Wikipedia, online http://en.wikipedia.org/wiki/Elizabeth_de_Vere. Hereinafter cited as Wikipedia.
- [S5540] 1900 US Census - Henry Durfee, Household #44: Henry Durfee, 5 June 1900, Microfilm, Roll T623_1505, Page 2B. Enumeration District 230. Ancestry (USA), http://www.ancestry.com
- [S5541] 1910 US Census - Henry Durfee, Household #172: Henry Durfee, 28 April 1910, Microfilm, Roll T624_1437, Page 11A, Image 886, FML Number 1375450. Enumeration District 0059. Ancestry (USA), http://www.ancestry.com
- [S5542] 1920 US Census - Henry Durfee, Household #180: Henry Durfee, 17-19 April 1910, Microfilm, Roll T625_1671, Page 8B, Image 229. Enumeration District 67. Ancestry (USA), http://www.ancestry.com
- [S5543] 1930 US Census - Henry Durfee, Household #3: Henry Durfee, 2 April 1930, Microfilm, Roll 2170, Page 1A, Image 394.0. Enumeration District 37. Ancestry (USA), http://www.ancestry.com
- [S5823] Forthcoming Marriage, Journal-Pioneer, Prince County, Prince Edward Island, 23 August 2011, page B8. Hereinafter cited as Journal-Pioneer.
- [S7222] Cemetery Marker. Sydney Webster Currie, Marker Inscription; read by David A. Walker, 17 June 2012.
- [S9373] Baptism Record, United Church Records, O'Leary, Prince County, Prince Edward Island, Book #2, (8 September 1914). Hereinafter cited as Baptism Record.
- [S9832] Cemetery marker, Woodlawn Cemetery, Alberton, Prince County, Prince Edward Island, Canada. James Murray, marker inscription; read by David A. Walker, 11 August 2014.
- [S10252] Baptism Record, United Church Records, O'Leary, Prince County, Prince Edward Island, Canada, Record Book Number 2, (13 August 1900). Hereinafter cited as Baptism Record.
- [S10254] Baptism Record, United Church Records, O'Leary, Prince County, Prince Edward Island, Canada, Record Book Number 1, Page Number 68, (11 May 1868). Hereinafter cited as Baptism Record.
- [S10255] Cemetery marker, United Church Cemetery, Miminegash, Prince County, Prince Edward Island, Canada. John James Costain, photograph & inscription; read by David A. Walker, 31 August 2015.
- [S10256] Cemetery marker, United Church Cemetery, Miminegash, Prince County, Prince Edward Island, Canada. Charles W. Costain, photograph & inscription; read by David A. Walker, 31 August 2015.
- [S10259] Cemetery marker, United Church Cemetery, Miminegash, Prince County, Prince Edward Island, Canada. James Costain family plot, photograph & inscription; read by David A. Walker, 31 August 2015.
- [S10280] Baptism Record, United Church Records, O'Leary, Prince County, Prince Edward Island, Canada, Record Book Number 1, Page Number 73, (30 November 1872). Hereinafter cited as Baptism Record.
- [S10281] Baptism Record, United Church Records, Alberton, Prince County, Prince Edward Island, Canada, Record Book Number 2, Page Number 1, (26 February 1891). Hereinafter cited as Baptism Record.
- [S10282] Baptism Record, United Church Records, O'Leary, Prince County, Prince Edward Island, Canada, Record Book Number 2, (13 August 1900). Hereinafter cited as Baptism Record.
- [S10283] Baptism Record, United Church Records, O'Leary, Prince County, Prince Edward Island, Canada, Record Book Number 2, (15 August 1904). Hereinafter cited as Baptism Record.
- [S10284] Baptism Record, United Church Records, O'Leary, Prince County, Prince Edward Island, Canada, Record Book Number 2, (13 August 1900). Hereinafter cited as Baptism Record.
- [S10285] Baptism Record, United Church Records, O'Leary, Prince County, Prince Edward Island, Canada, Record Book Number 2, (13 August 1900). Hereinafter cited as Baptism Record.
- [S10286] Baptism Record, United Church Records, O'Leary, Prince County, Prince Edward Island, Canada, Record Book Number 2, (13 August 1900). Hereinafter cited as Baptism Record.
- [S10287] Baptism Record, United Church Records, O'Leary, Prince County, Prince Edward Island, Canada, Record Book Number 2, (13 August 1900). Hereinafter cited as Baptism Record.
- [S10288] Baptism Record, United Church Records, Alberton, Prince County, Prince Edward Island, Canada, Record Book Number 2, Page Number 2, (17 September 1891). Hereinafter cited as Baptism Record.
- [S11540] Obituaries, Ferguson's Funeral Home, O'Leary, Prince County, Prince Edward Island, Canada.
- [S11541] Cemetery marker, Gospel Hall Cemetery, Rosebank, Prince County, Prince Edward Island, Canada. Frederick J. Ramsay & Cora P. Costain, transcription; read by David A. Walker, 2017.
- [S11542] Cemetery marker, Gospel Hall Cemetery, Crapaud, Queens County, Prince Edward Island, Canada. Brian E. MacDonald & Sybil A. Ramsay, transcription; read by David A. Walker, 2017.
- [S11942] Cemetery Transcript, Miminegash United Church, transcription, n.pub., n.p., unknown volume Personal Archives of David Arthur Walker.
- [S11944] Cemetery Transcript, Kildare Capes Christ Church Anglican, transcription, n.pub., n.p., unknown volume Personal Archives of David Arthur Walker.
- [S12120] Death Certificate, State of Missouri, Frances Ada (Knapp) Walker entry. Missouri State Board of Health, Bureau of Vital Statistics, Registered #2110, File #15392. Personal Archives of David Arthur Walker. Hereinafter cited as Death Certificate.
- [S13288] Cemetery marker, United Church Cemetery, Miminegash, Prince County, Prince Edward Island, Canada. Velda M. Costain, tombstone inscription & photograph; documented by David A. Walker.
- [S13289] Cemetery marker, United Church Cemetery, Miminegash, Prince County, Prince Edward Island, Canada. Everett L. Costain, tombstone inscription & photograph; documented by David A. Walker.
- [S13290] Cemetery marker, Floral Hills Memorial Garden, Pleasant Valley, Queens County, Prince Edward Island, Canada. Thomas E. Costain, tombstone inscription & photograph; documented by David A. Walker.
- [S13291] Cemetery marker, St. Mark's Roman Catholic Cemetery, Burton, Prince County, Prince Edward Island, Canada. Major M. Costain, tombstone inscription & photograph; documented by David A. Walker.
- [S13293] Cemetery marker, United Church Cemetery, Miminegash, Prince County, Prince Edward Island, Canada. Nelder Costain, tombstone inscription & photograph; documented by David A. Walker.
- [S13294] Obituary, Rooney Funeral Home, Alberton, Prince County, Prince Edward Island, Canada.
- [S13295] Obituary ~ Major Costain, Rooney Funeral Home, Alberton, Prince County, Prince Edward Island, Canada.
- [S13296] Obituary ~ Thomas Costain, Rooney Funeral Home, Alberton, Prince County, Prince Edward Island, Canada.
- [S13961] Obituaries - Goldie Ethyl Brennan, Rooney Funeral Home, Alberton, Prince County, Prince Edward Island, Canada.
- [S14296] Cemetery marker, Presbyterian Church Cemetery, West Point, Prince County, Prince Edward Island, Canada. Leslie A. MacLean & Ruby Pearl Costain, tombstone inscription & photograph; documented by David Walker.
- [S14297] Obituary, Ferguson Funeral Home, O'Leary, Prince Edward Island, Canada.
- [S15848] Herbert Hyatt Taylor & Bessie Adelia Cornwall, (15 November 1920), British Columbia, Canada, Marriage Index, 1872-1935, Registration Number 1920-09-222855 BCA Number B12905, GSU Number 2032874. Hereinafter cited as British Columbia, Canada, Marriage Index, 1872-1935.
- [S15882] Obituary - Brenda Olive (Costain) Wedge, Rooney Funeral Home, O'Leary, Prince County, Prince Edward Island, Canada.
- [S15883] Obituary - Miles Rodney Wedge, Rooney Funeral Home, O'Leary, Prince County, Prince Edward Island, Canada.
- [S16280] Obituary ~ Lucine Viola Costain,.
- [S16281] Death Notice - Calvin Costain, Rooney Funeral Home, Alberton, Prince County, Prince Edward Island, Canada.