1891 census return Nelson Lancashire
Thos Henry Ainsworth   27
Margt Ann Ainsworth   24
Francis Ainsworth   2
William Ainsworth   60
1901 Nelson Lancashire
Thomas H Ainsworth   36
Margaret A Ainsworth   34
Frank Ainsworth   11
William H Ainsworth   8
Bell Ainsworth   5
May Ainsworth   1
Stanley Ainsworth 1 (My Father)
1911 Nelson Lancashire
Thomas Hy Ainsworth   47
Margaret Ann Ainsworth   43
Frank Ainsworth   22
William Hy Ainsworth   18
Bell Ainsworth   15
May Ainsworth   11
Stanley Ainsworth 10
My father died in Blackpool Lancashire in 1979
I am sure he had a brother called Frank who emigrated to New Zealand but I'm not sure the Frank Ainsworth I have the information from New Zealand on is the correct one.  
Certainly if Frank married an Irish girl it would have explained the family rift. He would have been disowned by the rest of the family. My Irish school friend wasn't allowed in the house!!