NameSusannah Burke 
Documentation
Susannah is mentioned in the 1787 will of her father.
From undated petition in loose papers from Burke vs. Chenault:
John Burke died sometime about the year 1787, leaving Richd, Ann, Edmund, Susanna, Wm, Judith & Thomas Burke his only children. Will dated 12 Feb 1787. Will proved in 1788. Susanna his widow. [Essex County, Virginia, Box Chancery No. 32, 1823, paper 32-I-33.]
On an undated statement in a case of Thomas and William Burke vs. Henry Purkins as administrator of the estate of John Griggs, Susannah and Ann Birk of lawful age stated that Wm .;and Thos Burke.; paid money to Jno Griggs.;, etc. Signed Susannah her x mark Birk, Ann her + mark Birk. 17 March 1788. [Essex County, Virginia, Box Chancery item 5-I-80.]
On 3 January 1791, a deed was executed from Susanna Burke in her own right and as guardian to Richard, Ann, Edmund, Susanna, William and Judith Burke children and coheirs of John Burke decd late husband of Susanna to John Chenault of the parish of Southfarnham and County of Essex, administrator of the estate of John Burke. Whereas the said John Chenault as administrator with the will annexed of the said John Burke deceased obtained a decree of the worshipful Court of Essex County at a Court held for the said County on the 16th day of March 1799 against the said Susanna in her own right & as guardian to the Children above mentioned, whereby it was decreed that the said John Chenault should be appointed Commissioner to make Sale of a Tract of Land Situate, lying & being in the county of Essex near Piscataway old mill bridge whereon the said John Burke died, containing one hundred & ninety acres, more or less (and which said Tract is the Tract of land devised to the said John Burke by his father Thomas Burke) and also that the said guardian to the Children above mentioned should make a Title in fee to the purchaser of the said Tract of Land, by virtue of which said decree the said John Chenault entered into the said Tract of land & having exposed the same to Sale to the highest bidder, after duly advertizing the same, became the purchaser thereof for the sum of two hundred & Seventy pounds current mony of Virginia. Signed Susanna her X mark Burke. Witnesses: James Burk, James Webb, Eliza Hay, Lewis his x mark Burke. Ordered recorded 17 January 1791. [Essex County, Virginia, Deed Book 33, pages 288–289.].