"Ireland Civil Registration, 1845-1913," database, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:QGYW-JZM2 : 10 August 2022), Bridget McDermott Leyden in entry for Patrick Leyden, 11 Mar 1875; Birth; Carrick on Shannon, County Leitrim, Ireland; citing General Register Office, Southern Ireland; FHL microfilm 255,931.