The primary source of information on his death is Chapter 16 in Lt Col. JH Patterson's book The Man-Eaters of Tsavo. This is now available on-line via the Gutenberg Project.
Also illuminating and much more readable is The Iron Snake:The story of the Uganda Railway by Ronald Hardy. Part fiction and part fact is does give a feel for the time in ways that the official just cant do.
The primary source of information on the Construction of the Railway is the official history commissioned by the East Africa Railways and Harbours. Permanent Way:The story of the Kenya and Uganda Railway by M.F. Hill published in 1949, and the Parliamentary Papers Relating to the Construction of the Uganda Railway
Parliamentary Papers (British Blue Books) spanning the period 1892 - 1904 relating to the building of the Uganda Railway in Kenya, East Africa, published by HMSO. I have extracted the following from various auction catalogues. Prohibitively expensive to acquire, but available from the British Library on fiche or paper in the Social Sciences reading room.
Date Number Volume Title ---- ------- ------- -------------------------------------------------------------------- 1892 C-6555 Papers Relating to Mombasa Railway Survey, 1892 C-6817 Papers relating to Uganda. ---- ------- ------- -------------------------------------------------------------------- 1893 C-6847 Further Papers relating to Uganda. 1893 C-6848 Further Papers relating to Uganda. 1893 C-6853 Further Papers relating to Uganda. 1893 C-7025 Mombasa Victoria Lake Railway Survey, 1893 C-7109 Further Papers relating to Uganda. ---- ------- ------- -------------------------------------------------------------------- 1894 C-7351 Map of the Southern Portion of East Africa: [To illustrate C-7109] ---- ------- ------- -------------------------------------------------------------------- 1895 C-7708 Papers relating to Uganda. 1895 C-7833 Report of the Committee? Railway Communication with Uganda, ---- ------- ------- -------------------------------------------------------------------- 1896 C-7924 Report on Military Operations against Kabarega, King of Unyoro. ---- ------- ------- -------------------------------------------------------------------- 1897 C-8435 Report By Railway Committee as to Progress of Works 1896 - 1897 ---- ------- ------- -------------------------------------------------------------------- 1898 C-8718 Papers relating to Recent Events in the Uganda Protectorate. 1898 C-8941 Papers relating to Recent Events in the Uganda Protectorate. 1898 C-8942 Report By Railway Committee as to Progress of Works 1897 - 1898 1898 C-9027 Report by Her Majestys Commissioner in Uganda on the Recent Mutiny of the Soudanese Troops in the Protectorate. ---- ------- ------- -------------------------------------------------------------------- 1899 C-9123 Papers relating to Recent Events in the Uganda Protectorate. 1899 C-9232 Papers relating to Events in the Uganda Protectorate and Lieut-Colonel Macdonalds Expedition. 1899 C-9331 LXIII Report on Uganda Railway by Molesworth, 1899 C-9333 Report By Railway Committee as to Progress of Works 1898 - 1899, 1899 C-9503 Report by Lieutenant-Colonel Macdonald, R.E. of his Expedition from the Uganda Protectorate, May 3, 1898, to March 5, 1899. ---- ------- ------- -------------------------------------------------------------------- 1900 Cd.256 Prelimininary Report by Her Majestys Special Commissioner on the Protectorate of Uganda. 1900 Cd.355 Report By Railway Committee as to Progress of Works 1899 - 1900 1900 Cd.97 Memoranda Uganda Railway, ---- ------- ------- -------------------------------------------------------------------- 1901 Cd.361 Maps Illustrative of the Preliminary Report by Her Majestys Special Commissioner on the Protectorate of Uganda. 1901 Cd.590 LXVIII Despatch from His Majestys Special Commissioner in Uganda relating to Travellers in the Protectorate. 1901 Cd.670 Correspondence Uganda Railway, 1901 Cd.671 LXVIII Report by His Majestys Special Commissioner on the Protectorate of Uganda, with Map. 1901 Cd.674 Report By Railway Committee as to Progress of Works 1900 - 1901 ---- ------- ------- -------------------------------------------------------------------- 1902 Cd.1080 Report By Railway Committee as to Progress of Works 1901 - 1902 1902 Cd.1082 Memoranda Uganda Railway 1902, 1902 Cd.910 Instructions to Lieutenant-Colonel J. H. Sadler on Appointment as His Majestys Commissioner and Consul-General in the Uganda Protectorate. ---- ------- ------- -------------------------------------------------------------------- 1903 Cd.1770 Report By Railway Committee as to Progress of Works 1902 - 1903, ---- ------- ------- -------------------------------------------------------------------- 1904 Cd.2164 Final Report of Committee 1904 nk Accounts for the Period Ending 1903. 1904 Cd.1839 General Report on the Uganda Protectorate for the Year Ending March 31, 1903. ---- ------- ------- -------------------------------------------------------------------- 1905 Cd.2250 General Report on the Uganda Protectorate for the Year Ending March 31, 1904. 1905 Cd.2332 Report on Steamboat Service on Lake Victoria, 1905 Cd.2716 Report on Steamboat Service on Lake Victoria, ---- ------- ------- --------------------------------------------------------------------