John Lennon, son of William Lennon and Mary Collins (Killion?)

Im looking for any and all information regarding one John Lennon, born between 1844and 1846 in the Mount Talbot (but more likely the Cloonakilleg area), who immigrated to the US about 1869. This John Lennon could read and write, had money upon arrival in the US, and was very successful as a grocer in South Boston, Massachusetts from the early 1870s until his retirement in 1912 and eventual death in Boston in 1926. His parents were William Lennon and Mary Collins (could also be Killion, accounts vary). In a History of Tisrara Parish, there is a William Lennon listed in 1836. He might be whom I'm looking for.

All of the following Griffiths Valuation properties were taken from Athlone, Tisrara, Cloonakilleg area., and this group seems to be a better match with what we know about the John Lennon were concerned with. The landowner for all these leases is one Denis H. Kelly, of Castle Kelly, nearby. The Griffiths in Cloonakilleg was accomplished in this area in 1858. From my understanding of the Griffiths (and seems to be suggested here), is that this is a single 275 acre holding, held in common and separately by these individuals living in separate cottages/homes in the hamlet (I hesitate to call it a village), and the (w/12 others) notation may mean that this landholding (44.1.a-n) had only the individuals mentioned here as separate cottage holders, or it could also mean this landholding was comprised of nearly 155 additional people living here. They are differently assessed fees for their portion of this 275 acre plot, Michael Collins being assessed 20 pounds 5, and John Lennon assessed 14 pounds 10.

Thank you, Dan Lennon