Facts: - death date: 31 december 1991 - birth date: 10 december 1906 - name: mary virginia gaver - death place: danville , virginia - birth place: washington d.c. - occupation: librarian , educator , writer and editor Based on these bullet points, write a short biography describing the life of mary virginia gaver .
mary virginia gaver -lrb- december 10 , 1906 -- december 31 , 1991 -rrb- was a united states librarian .she was considered by one source to be one of the most important leaders in library science in the 20th century .