Gibson's papers passed to his grandson, Edmund Gibson, at whose death in 1798 the whole collection disappeared from public view to re-emerge, by chance, in 1889 when they were purchased for the library of St Paul's, London, by the sub-dean. In 1896 Gibson's descendants established at law their right in his papers, the greater part of which were accordingly dispersed from the library of St Paul's amongst the bishop's descendants, J C Dalton, Ernest Poore and C J Hill (of St Andrews). Of Mr Hill's portion of the papers, (volumes nos. 3, 4, 9 and 12), volumes 3, 4 and 12 were given to the University of St Andrews in 1928, volume 9 having been lost. Volume 3 comprises ms5234 to ms5317, Volume 4 comprises ms5179 to ms5233, while Volume 12 appears to have been boxed by St Paul's and has again been reboxed by St Andrews University Library. It contains ms5325 to ms5427 (plus later additions ms5428-9).