I have located the names of Joseph's parents, Jacob and Isabel Grandstaff. Isabel's last name is unlisted on the marriage documentation. I think the E, in Joseph E Grandstaff stands for Eugene (hint from ancestry.com). Joseph and Millie had 7 children: Ruth Naomi (married name Orndorf), Rose Bell (married name Schade), Clarence, George W, Walter R, Frank Boydie, and Minnie (married name: Good). Any information regarding this would be more than appreciated! Thank you in advance for your time and consideration!