This article refers to the stillborn baby. For the woman who adopted her identity, see Mary Watson.
Mary Elizabeth Morstan
Vital statistics
Born October 1972
Died October 1972
Appearances His Last Vow

Mary Elizabeth Morstan was a stillborn baby born in October 1972. She was buried in Chiswick cemetery. In 2008, the freelance assassin A.G.R.A. acquired Mary's name and birth date in an attempt to free herself from her previous life. She permanently took this name, eventually marrying John Watson under the name.


Mary Elizabeth Morstan was mentioned in the Sherlock episode His Last Vow.

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