Peter Cassidy (1840?) came to the US with his wife Mary first to Penn where he worked in the mines. Moved to ILL to fight in the Civil War then to Erin County Minn wher he lived until his death in 1898. His son Bernard (1851) moved to Stockton, Ca to become a court bailif then County Sheriff. I have his year of birth only. If anyone can help me find this information I would be appreciative.