Individual Details

There are two Thomas Marshalls of about the same age living in the same area and both having children, so I am not yet sure which Thomas is the father of Mary. However, there is a 1896 article in the Andover Townsman which suggests that Mary is the daughter of Thomas Marshall and Joan. This is from the article (Andover Townsman, August 28, 1896, p. 2).
Mary Holt, wife of Thomas Johnson (tidbit: Thomas is the brother of our ancestor Timothy), died in 1700, and in his seventieth year, he took a younger helpmeet, Damaris Waite, widow of John Marshall of Billerica. This was her third marriage, and she had been John's third wife. This young Malden widow seems to have brought to Andover the aged Marshalls, Thomas and Joan, in their 96th year to finish life with Robert Russell and Mary their daughter.
In addition, I have now located other evidence in the form of deeds which fully establishes Mary as the daughter of Thomas and Joanna.

Birth	Abt 1642	Reading, Middlesex, Massachusetts
Marriage	6 Jul 1659	Andover, Essex, Massachusetts - Robert Russell
Death	14 Jan 1715/16	Andover, Essex, Massachusetts
Burial

Spouse	Robert Russell (1630 - 1710)
Child	Mary Russell (1661 - 1717)
Child	Thomas Russell (1663 - 1731)
Child	James Russell (1667 - 1717)
Child	Robert Russell (1669 - 1689)
Child	Joseph Russell (1671 - 1702)
Child	Sarah Russell (1674 - 1764)
Child	Benjamin Russell (1677 - 1754)
Child	Hannah Russell (1679 - 1715)
Child	John Russell (1682 - 1778)
Child	Elizabeth Russell (1687 - 1772)

Father	Thomas Marshall (1609 - 1708)
Mother	Joanna Marshall mnu (1617 - 1708)
Sibling	John Marshall (1633 - 1702)
Sibling	Edward Marshall (1641 - )
Sibling	Samuel Marshall (1643 - 1643)
Sibling	Joseph Marshall (1645 - )
Sibling	Sarah Marshall (1646 - )
Sibling	Benjamin Marshall (1649 - 1716)
Sibling	Thomas Marshall (1650 - )

Notes