I am a decendant of the Shanahans from Dunbeacon, Durrus, County Cork. Julia (actually Juliann) visited Jeremiah Nugent at 263 Avenue D in Bayonne, NY. Per the May 1908 Ellis Island manifest he was her cousin.
The 1900 census shows a boarder in the home, Michael Casey. Mary Casey Shanahan was Julia's grandmother, so I suspect a relationship through the Casey line.
Are you aware of a Nugent/Casey/Shanahan connection?