↑Marriage Registration:
"Ireland, Civil Registration Marriages Index, 1845-1958"
Original data: “Ireland, Civil Registration Indexes 1845-1958,” Index. FamilySearch, Salt Lake City, Utah. General Register Office, Republic of Ireland. "Quarterly Returns of Marriages in Ireland with Index to Marriages."; Volume: 4; Page number: 219; FHL Film Number: 101263 Ancestry uk Record 2572 #3726320 (accessed 25 September 2023)
Cornelius Ryan marriage to undefined on 1915, Jul-Aug-Sep in the Callan, Ireland district.