Career
She earned the name of "the little stunt girl" because of her willingness to attempt thrilling scenes in motion pictures. Mitchell began her career in 1909 playing in the Baker Theater Stock Company in her hometown of Portland, Oregon. She followed with a season in the Orpheum Circuit and a run at the Alcazar Theater in San Francisco.
Mitchell made her film debut in 1912 with the New York Motion Picture Corporation and would eventually appear in over 100 films during her career.
She appeared a number of times with Western star William South. Hart playing a leading role in those films. In 1916 she played in The Brink with Forrest Winant and Arthur Maude.
After 1917, her roles became smaller and she appeared in a handful of films through the mid-30s and in several bit parts during the early 1950s which often went uncredited. After her retirement from films, Mitchell managed a large apartment house in Los Los Angeles
While managing a second apartment in 1957, the Louisiana Brea District Apartments, a disgruntled houseboy named Sonnie Hartford, Junior., strangled her with the cord of her blue silk dressing gown.
An article in the Press-Telegram read in part,
"A search still was being made by police for a "baldish, middleaged man" who reportedly kept company recently with the never-married Mission Mitchell. Police said there was no sign of a struggle or criminal attack. Her body was discovered by the houseboy.
She had appeared in film bit roles as recently as 1951."
Mitchell is buried at Hollywood Forever Cemetery in Los Los Angeles