Birthdate is based on a look-up by admins for Irish Ancestors Genealogy Research Facebook group.
Sources
Archdiocese of New Orleans Certificate of Burial, Burial Register of St. Patrick Cemetery Interments, Vol. 1853-1855, p. 17.
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DNA Connections
It may be possible to confirm family relationships with Patrick by comparing test results with other carriers of his Y-chromosome or his mother's mitochondrial DNA.
However, there are no known yDNA or mtDNA test-takers in his direct paternal or maternal line.
It is likely that these autosomal DNA test-takers will share some percentage of DNA with Patrick: