Haulbowline CBÉS 0386 Gearóid Ó Hiarfhlatha, J.C. Fitzpatrick Haulbowline Island, Co. Cork Transcript
(no title) “The fort on Haulbowline frequently changed hands to the Royalists, the Roundheads, the Jacobites and the Williamites.” CBÉS 0386 Gearóid Ó Hiarfhlatha, J. O' Grady, J.C. Fitzpatrick Transcript
(no title) “Haulbowline was transferred to the Irish Free State on 31st March 1923.” CBÉS 0386 Transcript