Could SKS look up in the 1851 census for a John and Lizzie Ritchie. Their son, Alexander Kenneth Ritchie is listed in the 1880 MA Berkshire Co Pittsfield census as being born in Scotland in 1851. Alex immigrated to the Massachusetts and married Harriet Electa Peirson 27 Spe 1877 in Pittsfield, Berkshire Co, MA. Alex died in 1911 in Pittsfield, but I haven't been able to locate him on the 1900 or 1910 census to see when he immigrated. Thanks