I am looking for information on my g grandfather, John Mamerow.Came from Mecklenberg, Germany as a young man by himself. Naturalized in Rochester, NY in 1875. Married Sophia.Children-Mary, Charles, Louis, John (my gfather), Emma, William, George, Henry, and Frank. All children except John and Mary changed their surname to Monroe.All lived in the Rochester, NY area all their lives. Any info would be greatly appreciated.