Seeking additional info about O'Brien's from Tipperary. Dennis E. O'Brien (my ggrandfather) was born in Clonmel, Tipperary in 1840 to Jeremiah O'Brien and Mary Keating O'Brien. Dennis subsequently married Birdget Malloy and emigrated to the US (NYC and Saratoga NY). Am interested in any info about Jeremiah and Mary - I beleive they were also from Clonmel- but Dennis' death certificate only mentions they were born in ireland. Thanks in advance!