Looking for information about John Cotter from Berehaven, Cork, Ireland,(1810-1894) married to Martha Sloan (1815-1882). Both John and Martha are buried in Danville, Dodge, Wisconsin. They had two children, James (1854-1927 married Esther Powers in Wisconsin) and Garrett (1857-?? married to Esther Callahan 1855-1929). I believe both children were born in New York state. Garrett and Esther had four children James D, Miles Thomas, John Garrett and Martha Mary. Thanks for any help. I am at a dead end!