am searching for date of death for gg-grandparents William and Louisa Lowden Chadwick. Both were born in KY. William b. abt. 1822 and died between 1880-1900. Louisa b. abt.1833 died between 1900-1910. In 1900 census for Montaque County she is listed ass a widow. Any information on them would be appreciated. Sincerely loma