There are at least seventeen spellings today including MacGarrity, MacGeraghty, Gerty, Garrity...etc all derived from Mag Oireachtach which translates to "the son of a member of the Assembly. Members of the clan were predominantly found in Galway, Roscommon, Sligo and Mayo.
Our Geraghty family is found in Carrownaclea (Carnaclay) County Mayo by the 1820s.
Mary Agnes Geraghty 1892-1988 m. John English
John Geraghty 1864-1897 m, Mary Agnes Walsh (Dropbox Folder)
Patrick Geraghty 1839-1923 m. Mary Killeen (Dropbox Folder)
Edward (Ned) Geraghty 1810-1880 m. Judith Ludden (Dropbox Folder)
Martin or Anthony Geraghty?
Carrownaclea, Mayo, Ireland
St. Paul, Minnesota
History of the Dakota County Irish - The Geraghty Family Early History in Ireland
The Geraghty Clan on Facebook
Geraghty on Wikipedia