- 1R & W Hawthorn Leslie & Co Archive (HL)
1846-1963, fonds - 2Order books (HL/1)
c 1846-1963, series - 3Photographic material (HL/4)
c 1928 - c 1963, series - 4Brochures (HL/5)
1921 - c 1958, series - 5Order book 1 (HL/1/1)
c 1831 - 7 October 1846, item - 6Order book 2 (HL/1/2)
3 Sepetmber 1835 - 19 March 1886, item - 7Order book 3 (HL/1/3)
27 October 1884 - 22 August 1921, item - 8Order book 4 (HL/1/4)
31 March 1921 - 22 February 1954, item - 9Order book 6 (HL/1/6)
16 May 1935 - 13 September 1957, item - 10Drawing register 1 (HL/2/1)
1871-1885, item - 11Drawing register 2 (HL/2/2)
1885-1911, item - 12Drawing register 3 (HL/2/3)
1911-1928, item - 13Drawing register 4 (HL/2/4)
1928-1963, item - 14Spare boiler registers (HL/3/1)
c 1900-1957, sub-series - 15Spare boiler register 1 (HL/3/1/1)
c 1900-1933, item