| Sources |
- [S3343] Ancestry.com, Web: Ireland, Census, 1901, (Name: Ancestry.com Operations, Inc.; Location: Provo, UT, USA; Date: 2013;), Class: RG14.
Record for Robert Montgomery
https://nationalarchives.ie/collections/search-the-census/census-record/#census_year=1901&surname__icontains=Montgomery&firstname__icontains=Robert+James&county=Londonderry&limit=30&id=7813556
https://search.ancestry.com/cgi-bin/sse.dll?db=70667&h=9215750&indiv=try
- [S3377] Ancestry.com, Ireland, Select Births and Baptisms, 1620-1911, (Name: Ancestry.com Operations, Inc.; Location: Provo, UT; Date: 2011;).
Record for Robert James Montgomery
https://search.ancestry.com/cgi-bin/sse.dll?db=2533&h=1350992&indiv=try
- [S5292] Derry City Cemetery, (Name: Findagrave; Location: Londonderry, Londonderry, Northern Ireland;), Montgomery, Robert James (1869-1905) Memorial #100789288 Plot F-a-318 Accessed KRM 15 May 2026 6:38pm https://www.findagrave.com/memorial/100789288/robert-james-montgomery.
Derry City Cemetery
Also known as City Cemetery, Londonderry City Cemetery
Londonderry, County Londonderry, Northern Ireland
https://www.findagrave.com/cemetery/2139939/derry-city-cemetery
https://www.findagrave.com/memorial/100789288/robert-james-montgomery
- [S3365] Ancestry.com, Ireland, Select Marriages, 1619-1898, (Name: Ancestry.com Operations, Inc.; Location: Provo, UT, USA; Date: 2014;).
Record for Robert Montgomery
https://www.irishgenealogy.ie/files/civil/marriage_returns/marriages_1862/09633/5493896.pdf
https://search.ancestry.com/cgi-bin/sse.dll?db=9904&h=1182111&indiv=try
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