Easily one of the most popular and reliable box office performers today, actress, comedian, producer, and now fashion designer Melissa McCarthy has a lot to be proud of. With a string of hits (Bridesmaids, Identity Thief, The Heat, Spy!, The Boss, etc.) that consistently deliver an enviable ROI, it’s a no brainer that her next one will follow suit because she’s part of the long-anticipated Ghostbusters dream team of Leslie Jones, Kate McKinnon, and Kristen Wiig. While they’re all ghostbusting, I thought I’d do a little ghost-searching – that is, for the ancestors who populate McCarthy’s family tree – and here’s what I learned.

  1. As many probably assume, Melissa McCarthy is of mostly Irish heritage (though with a twist – more on this shortly) – roughly 69%. German comes in second with 19% and the remaining 12% is deep American, mostly tracing back to England. Surnames in her past include Brolley, Burke, Carty, Clark, Condon, Connelly, Cook, Coyne, Dagenhart, Daley, Gallacher, Garvie, Green, Hoffman, Hughes, Humphries, McFayden, McGerrick, McLaughlin, Moore, O’Reilly, Owens, Quinn, and Walsh, so if you share any of these, you could be cousins, especially if your family hails from Illinois, Indiana, Ireland or Scotland.
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  2. Yes, it’s true that Melissa and Jenny McCarthy are first cousins, but their family’s name wasn’t always McCarthy. For reasons that are unclear, their immigrant grandfather, Michael Carty, changed from Carty to McCarthy between his appearance in the 1930 census and his 1934 marriage. He had entered the country (by railroad from Quebec) and become an American citizen under the name of Carty, but perhaps he had one too many, “My name’s Mike Carty.” “McCarthy?” “No, Carty. C-A-R . . .” conversations and decided to go with the flow. And for those wondering which corner of Ireland gets to claim Melissa McCarthy’s Carty roots, congratulations to Currygranny in the Newtownforbes area of County Longford!
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    Michael McCarthy SSA application

    1936 Social Security application for Michael McCarthy showing his father as Carty. Source: Social Security Administration.

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    Declaration of Intention to become a U.S. citizen for Michael Carty completed in 1923 when he was still using the original version of his name. Source: Cook County Clerk of the Circuit Court

    Declaration of Intention to become a U.S. citizen for Michael Carty completed in 1923 when he was still using the original version of his name. Source: Cook County Clerk of the Circuit Court

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    Thomas Carty baptism

    1860s marriage of great-great-grandparents and baptism of great-grandfather, County Longford, Ireland, illustrating the original name of Carty. Source: National Library of Ireland.

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  3. Her paternal ancestry is entirely Irish leading back to counties Longford and Armagh among others – but with a pronounced detour. Every branch on this half of her family tree spent one to three generations in Scotland before emigrating to U.S., a common pattern with Irish families usually driven by economics. In her family’s case, many of her forebears went to Lanarkshire (including Carfin, Cambusnethan, Glasgow, Hamilton, Holytown, and Wishaw) to find employment as iron workers, coal miners, and laborers, though there’s one shoemaker and a dash of Dumbarton thrown in. So in spite of their Irish origins, most of her paternal, immigrant ancestors likely arrived on American shores with a Scottish brogue.
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  4. One of the more tragic tales in McCarthy’s family history is that of her great-great-grandfather, Peter Dagenhart. As seen in this coroner’s inquest, he was killed while working on the railroad by “being crushed by a girder of viaduct of box car on which he was riding, said car being shoved south by Engine #335.” He lingered briefly and died at a local hospital several hours later. It’s somewhat bittersweet that he can be found recorded in the 1910 census with his family four days after his death.
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