Parents George and Grace Keefus died within a week of each other in January of 1920 from the flu, orphaning three children. The mothers maiden name was Grace Otis. Family lived in Ramsey County, MN. Birthdates of first child, name unk was 27 Sep 1909, birthday of second child name unk was 20 Oct 1912, birthday of third child Grace Margaret Kiefus was 8 Jan 1915. Any help finding these three sisters would be appreciated.