Noonan S Philadelphia USA from Ireland

Hi I have been researching my family name for about 8 months now. Here is the basics that I have.

Michael J Noonan - DOB July 1862, Printer arrived in USA in 1880. His two brothers show up in 1880 also
Luke Noonan- DOB 1856. Printer but he disappears from Phila, PA after 4 years may have moved to New York
Thomas James Noonan- DOB July 4 1863 - Laborer

Their port of departure was Queenstown, Ireland. I have no other information about their past or where they come from so if anyone knows about this family then we are family and I look forward to getting to know you.