Joseph was mentioned in the 27 October 1739 will of his father, John Munday, proved 18 March 1739/40. “Item I do Give unto my son Joseph Munday the plantation that I do now Live on and the Land adjoining thereto to him and his heirs forever”. [Essex County, Virginia, Will Book 6, pages 242–243.]

An inventory and appraisal of the estate of Henry Pagett deceased was made by Charles Munday, a Joseph Monday and Henry Critendham. Total valuation £39.8.2. Ordered recorded 21 January 1745. [Essex County, Virginia, Will Book 7, pages 410-412.]