Roger -
Please excuse my apology for taking so very long to respond to your efforts on my behalf. Shortly after I made the post, my husband became critically ill. Since COVID was still at large, I treated him from our home until my health suffered, and then transferred him to a safe hospital, then a hospice until he died. Two months have passed, and though I am still mourning him, I am back doing genealogy, and wanted to resume the various searches I am involved in.
I think the entry you found for the baptism in Cork is Dave Madden's GGgrandfather. Jeremiah Madden was supposedly born on 28 Jan 1838 -- your records showed 25 Jan 1839. His parents, according to what was passed down to David, were Patrick Madden (1811-1849) who died of TB in Boston at an early age, leaving behind his wife Ellen nee Murray (1819-?) in Boston. She had five known children that I know of: (1) Jeremiah; (2) Mary (1837-23 June 1863), who died in Providence, Rhode Island; (3) Ann (b. 1843-?); (4) John (b.1846-?); and (5) Ellen (circa 1853- 2 April 1896), who died in Boston City Hospital.
Could you perhaps find any additional records on Roots Ireland with the information I provided? Is the Baptismal Record available in the records of the Irish National Library? I'm going to try searching, so wish me luck. I wonder if gravestones may also be found in Kilbrittain? What other data might you be able to find -- if it is the right family? Do city records exist in a format that can be searched? Irish records are a bit difficult, compared to American ones, though I suppose that is to be expected given the length of time they cover!
Thanks again. Go raibh maith agat arís! You may email me directly at drsuewelsh@yahoo.com. I try to check the site daily. (Cé go n-admhaím go n-imíonn mé thar na bearta ó am go chéile...)
P.S. My former email @suewelsh@earthlink.net has been having problems, so I registered another of my addresses.
Thanks again. Go raibh maith agat arís!