O'HARAs in Ontario and maybe Wisconsin & Minnesota

I am searching for any clues about any of my O'HARAs.
Anthony O'HARA (b 1812 Ireland) and Mary COCKRIN (b 1812 Ireland) immigrated with their family from Ireland to Ontario, Canada, in about 1849-1850. Their children include: Catherine b 1837, Thomas b 1840, Micheal b 1844, Ellen b 1846, Ann b 1848, and John b 1851 in Ontario (my g-grandfather).
I know little about this family.
Thomas O'HARA married Mary Ann GRAHAM in about 1858 and had the following: Jane b 1859 (m Jacob TESKEY), Thomas b 1861, Anthony b 1865 (m Annie CHECKLY?), Henry John b 1868 (d 1892), Mary Ellen b 1871 (m Cornelius DAVIS), Catherine b ca 1877 (m Mr. INCH), and George Joseph b 1880 (m Mary PELCH).
John O'HARA married Mary Rosalie DESCHENES in 1875 and had the following: Ernest b 1877, Anna May b 1878, Edward Augustine "Gus" b 1881, Mary Calista "Cliss" b 1885, Kathleen Amanda b 1887, Charles Louis b 1889, John b 1891, Ida Rosalie b 1893, Anthony b 1896 (my grandfather), Julia Edith b 1898, and Alfred Mary b 1901. I know this line fairly well.
Although he settled in Ontario, Canada, John's son Gus was strangely baptised in Wisconsin. Thomas' daughter Catherine may have also died in Duluth, MN.
Any hints to connections about this family would be wonderful!
Please email direct if you like:
[email protected]