Mary was mentioned in the 2 October 1811 will of her husband, James Munday, proved on 17 November 1811. She was to lent all land and the rest of the estate during her life. [Essex County, Virginia, Will Book 17, pages 325–326.]

On 16 January 1815, Francis Munday and Benjamin Stokes were bound in the penalty of $1,200 for Francis Munday’s administration of the goods, chattels and credits of Mary Munday, deceased. [Essex County, Virginia, Will Book 18, pages 90–91.]

On 19 June 1815, an inventory and appraisal of the estate of Mary Munday, made by Daniel Brown, Ulysses Sullivan, and Lewis Brown, was returned to court. [Essex County, Virginia, Will Book 18, page 179.]

On 17 July 1815, an inventory of the estate and an inventory of money and debts belonging to the estate of Mary Munday were returned to court by Francis Munday, administrator. [Essex County, Virginia, Will Book 18, pages 189–190.]

The estate of Mary Munday in account with Francis Munday for 1815 was returned to court on 21 August 1815. [Essex County, Virginia, Will Book 18, pages 195–196.]