During my research, I have continued to run into a "Scollin" and
"Scollins" from Connecticut (USA). I have information of a Harold
Vincent Scollin (b. 12 October 1892) from Danbury, CT. This Scollin married
Mabel Jones, and they had a son named Harold V. Scollin, JR. (b.26 October
1919) from Boston, MA. I believe that Harold JR married Ruth Brooks. I have some unverified info dating back to the late 1820's for this family. I believe there is a Hugh in this line. The one rule of genealogy is never throw out data. Do an online search for "Shalvoy". There research is following that line, and may be what you are looking for.
O'Sceallain which became Anglicized to Skallan, Scollon, Scollin and Scallan, etc. is the actual original surname (I believe). While there is also a Scallan family in Wexford nearly all the Scollons, Scallans, etc, in the North of Ireland stem from O'Sceallain.
Scollin, Scollon, and Scollan appear to be interchangeable when I
conducted research into that surname. It has been my experience that the spelling of "Scollin" changes as often as it was recorded in Ireland. Most often, it was recorded by parish priests. I was able to track my roots to Northeastern Ireland in the County of Leitrim, Town of Corrabarrack (Curbarrick?), in the parish of Fenagh. Even in the Baptism records from that Parish, the spelling of our surname is Scollon and Scollan. It was the parents christened names which allowed me to verify the baptismal records.
I can only trace my ancestors back to approximately 1816. Michael Scollon
(Scollin) was born on or about that year. He married a woman by the name of Mary Scally. I was able to verify their identities through church records and
land records (1833). They had the following children:
Elizabeth (b.1835 - d.1901) m. Peter McGovern
Margaret Scollin (b.1837)
Ellen Scollin (b.1840 - d.24 June 1908) m. Patrick Scollan
Ann (b.1842) presumedly died as infant
Michael (b.1 May 1844 - d.5 December 1916) m. Mary Reddington
Ann (b.1851)
I believe most, or all, of the children emigrated to the United States
through Boston prior to 1863. I am certain that Elizabeth, Ellen and
Michael did. They all settled in Auburn, NY.
Michael Scollin (b.1844) and his wife Mary Reddington had the
following children:
John (b.16 March 1870)
William (b.9 February 1872)
Francis (b.11 March 1875) m. Catherine McGeever
Michael (b.1 May 1875 d.1901)
Charles (b.28 July 1877 d.1892)
George (b.4 July 1880 d.1943) m. Bertha Conklin
Mary Ellen (b.24 June 1884) m. VanPatten (moved to Santa Monica)
Margaret (b.2 February 1887) m. Bidwell (moved to Santa Monica)
My great-grandfather was George. I have fairly complete records following
his family tree through to my children.
I am more than willing to share what data I have it is useful to you.