Hi, Did you ever get a copy of the letter from Irasel Cosner? I have a copy of a letter sent to an Esther(?)whom I believe is a granddaughter of his. It was written in 1917. I recieved this along with some other info from Marilyn Cosner about 10 years ago when I was beginning research on my side of the family. Our lines did not connect directly but I still have the info.