There have been a few publications that deal with different aspects of the history of Paulstown. Those listed below are the ones I am aware of. If you have another, that I have not listed, then I would be delighted to hear from you.
Drennan, Mrs. (1962) Paulstown Castle in Old Kilkenny Review. No. 14, pp. 45-55.
Dunleavy, John, J. (2006) Paulstown and 1798 in Old Kilkenny Review. No 58, pp, 120-128.
Dunleavy, John, J. (2007) A Short History of Paulstown, Self-Publication.
Paulstown Education and Historical Society (2007) Paulstown School Past and Present Paulstown, Kilkenny: Grange Silvia Publications. ISBN: 978-0-9534485-3-1
Prendergast, William (1943) History of the Townland of Paulstown with Map.