I have no idea where to start to see if there is a connection, but I have a Daniel Hurley born abt 1889 in Dunmanaway, Co. Cork who came to the US and married Mary Francis O'Sullivan of Bere Island. In 1930 they lived in Everett, Massachusetts with children, John, Mary and Daniel. Later children born were Joseph and Eileen.
Per the 1930 census Daniel Sr immigrated in 1905 and Mary in 1908. I don't believe they met until MA and probably married there.
Anything sound familiar? I have no parents or siblings for my Daniel either, so understand your frustration!