Hanley S IN Lasalle Illinois

In my search for Mary Hanley's family, I went to the Ballykilcline Website. I found James Hanley, one of four brothers, b. 1783. He had a son, James, b abt 1818 (Mary was born abt 1815, could this be her brother?). He married and immigrated to America in 1847. They landed in Vermont, and settled in LaSalle, Illinois (the same route as my family). This is their family:
The children of James and Susan:

John b. Feb. 1842
Elizabeth b. died as a child, buried in Ireland
Peter b. Dec. 1844
James b. Feb. 1849
Child not named died
Anna b. Dec. 9,1851
Thomas b. Jan. 1854
Bridget b. Feb. 1858
Dennis b. 1861
Edward b. Mar. 1862
My family also contained the names Anna, Dennis, and Bridget. Family names? Could be my family, or a total coincidence.