This allied material consists of a set of preliminary transcripts of the original material, with articles that were given at the time of donation; a further note about the material concerning supplementary findings; and photocopies of the lists of finds (WCP/1/20, WCP/1/37, WCP/1/38 and WCP/1/39).

'Copy of a letter addressed to Colonel Sykes by Captain Kittoe (no place or date)' in which he writes that he has just returned from a tour along the bank of the Gandak. He has spent several months examining inscriptions made by Captain R.W. Ellis, Political Assistant in Bundelkund. He is currently having them translated into English. He is becoming convinced that ancient Pali was the first written character in Central India.

Kittoe also writes about the architectural details and sculpture discoveries that he has been making of both Buddhist and Brahmanical buildings giving descriptions of them and their inscriptions. There are also some pencil sketches with the copy of the letter to further aid his descriptions. He writes of having been in Allahabad as well as Bupau, Patna and back to the Benares (Varanasi) area.

'Copy of a letter addressed to Col. Sykes by Capt. R. Gill, dated Jabneh, 29 March 1849' in which he writes of his latest series of paintings which comprise of copies of nearly all the paintings of the verandah of the caves except that which was supposed to be a representation of the zodiac, but which appeared to Gill as a representation of the states of man. Gill continues to describe the caves and their paintings, inscriptions and layout.

'Copy of a letter addressed to Col. Sykes, East India House, by Dr. Impey, dated Indore, 10 June 1849' in which Impey writes that in the same mail he has sent Sykes a paper on the colossal Jain figure on the 'Satpoonah Range'. He is unable to decide which of the Jain figures it represents. The inscriptions to be found are in Sanskrit. He compares his discovery to that of Captain Vodel's written about in the Transactions of the Society. He also writes of visiting the caves at Awkya Tankye.

'Copy of a letter addressed to Capt. Reynolds by Dr W.H. Bradley, dated Camp [Humber, near Soulah], 25 January 1830' in which he asks Reynolds to pass on to Colonel Sykes the information he writes regarding the Aurangabad Caves. He then continues to provide the information and his opinion upon the caves.

'Copy of a letter from Capt. Gill, addressed to Col. Sykes, dated at Adjuntah, 16 October, 1849' in which he writes of his concern that his paintings had not arrived when Sykes had written to him. He has continued to copy the cave paintings and writes of those and inscriptions. He also writes concerning Professor Wilson's remarks upon his paintings and of some things Wilson seems to have missed.

Draft of certification note from William Claxton Peppé to Pandit Misra, Collector of Basti. Written on a narrow oblong scrap of Government notepaper, apparently on the reverse of a note from the Officiating Collector, a draft in pencil in Peppé's writing certifying that 'these two jars' contain all the ashes found in the Piprahwas stupa with notes of witnesses. The end of the official letter is in ink. Handwritten, 2 sides, written after 21 February 1898 (the letter contains this date).