Colahan family - Kenneth, James, Frank, possibly Cornelius
my grandfather Kenneth Lionel Colahan born 8 Jan 1912 in Kirkland, IL
his father James Levi Colahan, born 7 Jan 1890 in Kirkland IL
his father Frank, born May 1860 in Illinois
his father may be Cornelius who was born in Ireland but I cannot find evidence that I have found the correct Cornelius Colahan.
Any help along this line will be greatly appreciated. There are not all that many Colahan's and I am hoping to find relations. Thanks for looking and if you have any questions or answers for me do not hesitate to contact.