Kilduff family, Duneel townland? Killare

My 3x great grandfather, John Kilduff, was born about 1790. His parents were John and Ellen, my 4x great grandparents. John, senior, is listed in the Irish Flax Growers List, Westmeath 1796 as living in Killare parish along with a James Kilduff, probably his brother. John, junior, married Catherine Loughlin (Laughlin, McLaughlin), daughter of James, about 1818. I know they had three children: James, born abt 1820; Michael, born about 1830; and Margaret, born about 1834.

I had a researcher look for records and he located some baptismal records in Milltown parish for:

Ann Kilduff baptised 11 June 1826 to John Kilduff and Catherine (no surname), sponsor (forename illegible) Loughlin, Milltown Parish.

Michael to John Kilduff and Catherine (no surname), 26 Dec 1827, sponsor Ann Kilduff, Milltown parish.

No records were found for James or Margaret or for other children of John and Catherine. Apparently there were records for other children of a John Kilduff but different spouse names.

The Kilduffs emigrated to western Massachusetts in the late 1840s, settling in Stockbridge and farming there. John lived until 1877 and Catherine until 1883- both well up in their 80s. Living in that same small town was another John Kilduff, born in Westmeath in 1810, parents Edward Kilduff and Anna Daley (Daily). Edward, abt 1780-1854, and Anna went to Canada first and then to New York. It is surprising that their son John would end up in the same village as my John Kilduff and not be related somehow. 

The Griffith's Valuation, 1854 listed a James Kilduff of Duneel townland, possibly a close relative to John. The conclusion from the researcher was that the Kilduffs were poor landless rural laborers and he felt that further research would not give me any more information. 

So I though I would throw it out there and see if anyone might have any ideas to how I could connect to present day Kilduffs.

Judy Barry Franks