at least two JOHNSTON children.... one being his secretary at Dublin Castle..
Also elizabeth anne not to be confused with the recognised Anne.
Elizabeth anne married george washington Colclough who served under the Duke of Wellington. My gt grandfather George barry lyford THOMAS wrote in his diary that his mother was the daughter of 'lady elizabeth anne Wellesley" the daughter of the Marquess of wellesley. but this cannot be proved yet, though he lived with her as a teenager so guess it came from the horses mouth.