Althorp Papers. Vols. cmxcix-mi. Bills, receipts, etc., concerning book purchases; 1784-1819. Bound in red leather and buckram with gold lettering. F cap folio. Volumes measure 275mm x 450mm. Three volumes.
Althorp Papers. Vols. miii-mvi. Notebooks, marked 'H.T.' on cover, with original numbering, apparently recording House of Lords business; 1788. Autograph. Four volumes. Average size being 117 x 88 mm.
Althorp Papers. Vol. mviii. Volume, mostly autograph, with a few later entries in another hand, containing details of the dimensions and growth rates of several trees in Althorp Park; 1793-1928. 270 x 215 mm.
Althorp Papers. Vol. mix. Autograph volume containing details of the dimensions and growth rates of trees at Wimbledon Park; 1806-1826. Contains typescript paper recording measurements of trees up to 1948. 230 x 192 mm.
Althorp Papers. Vol. mx. 'Giornale della caccia uccisa nel R. Bosco di Persano, dal di 21 Dicembre 1819 a tutto li 8 Gennaro 1820.' A journal of hunting carried out in the royal wood of Persano. Binding of green leather with gold tooling. 370 x 270 mm.
Althorp Papers. Vol. mxi. 'Giornale della caccia uccisa da Novembre 1819 a tutto Febbraro 1820.' Hunting journal. Binding of green leather with gold tooling. 370 x 270 mm.
Althorp Papers. Vol. mxiii. Volume containing reminiscences in chronological order; 1758-1834. Three pages have been pasted in to an otherwise blank volume. Binding of brown leather, gilt stamped with the Spencer arms, and with a lock and key. 270 x 205 mm.