Dean, Mary Jermima
- Born: 18 Jul 1854, Lee County, Iowa
- Marriage: Walter, Joseph Peter on 1 Jan 1879 in Putnam County, Missouri
- Died: 18 Jul 1939, Putnam County, Missouri at age 85
- Buried: Bratcher Cemetery (Walter Cemetery)
Mary was five years old when she moved with her parents to Henry County, Iowa. She completed her education in Ottumwa, Iowa, in 1873, two years after her parents had moved to Rebel's Cove in Missouri. She taught school for several years in Putnam County, Missouri and was to spend the rest of her life there.
Mary was the last survivor of her family before her death on July 18, 1939, her 85th birthday. Her span of life witnessed the development of her community from a sparse settlement to a thickly populated area, according to her obituary. She and her husband were buried in the Bratcher Cemetery which has since been renamed the Walter Cemetery.
Mary married Joseph Peter Walter on 1 Jan 1879 in Putnam County, Missouri. (Joseph Peter Walter was born on 2 May 1852 in Putnam County, Missouri, died on 4 May 1927 in Putnam County, Missouri and was buried in Bratcher Cemetery (Walter Cemetery).)