The contents are as follows.
(i) Letters of his illegitimate son Lieutenant William Hislop, Bengal Army, 1822-1824, with letters, 1829, concerning his death at Kotah, Rajaputana (folio 1);
(ii) Letters of his illegitimate daughter Caroline Bridget Van Baerle and her children, 1837-1843 (folio 26);
(iii) General correspondence and papers, 1783-1842, including letters of Ferdinand, Duke of Brunswick-Luneburg, Prince Karl Wilhelm Ferdinand of Brunswick, Francisco de Miranda, and the Duke of Cambridge (folio 56);
(iv) Official papers, 1802-1825, undated, concerning Sir Thomas Hislop's service in the West Indies (folio 166);
(v) Papers, 1823, concerning the marriage settlement between Sir Thomas Hislop and Emma Elliot (folio 211);
(vi) Household and personal accounts and receipts, 1813-1837 (folio 219).