I took a guess that this person Mary Tarfa that I found in the Census was a Wholahan,
but she may have been Mary Dunn....a sister to Michales wife.
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I checked the1850,1860 & 1870 US Census for Kirkland Township but did not find Tarfa
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In 1879 Sarah is married in Clark’s Mills & moves to Rochester NY taking with her Mary. but William & Joseph go to nearby Kirkland Township to live with their Aunt, Mary Tarfa.

1880....Clark’s Mills, in Kirkland Township, in Oneida County NY of U. S. Census....
Thomas Wholahan.....26...Overseer in Cotton Mill.....b New York State
Thomas is the only Wholahan I found in Clark’s Mills, but his brothers Willie 13 & Joseph 11
are living near by in Kirkland Township, in the home of their aunt, Mary Tarfa age 59.
Is Mary a sister of Michael’s or Ann’s ? Is the reason the Wholahan’s came to live in
Clark’s Mills because they had relatives living here on nearby. ?
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1880...US Census, in Kirkland Township, Page?
Tarfa, Mary age 59 Keeping House Ireland Ireland Ireland
Wholahan, Willie 13 Nephew, At Home Ireland Ireland Ireland
Wholahan, Joseph 11 Nephew, At Home Ireland Ireland Ireland
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How to explain Mary Tarfa........59 in 1880.....= born in 1821
with Mary Wholahan..................66 in 1900.....= born in1833
Who are these people ?