http://www.london-gazette.co.uk/issues/29603/supplements/5417Gazette Issue 29603 published on the 30 May 1916, p.5417
DSO
Cdr. Geoffrey Basil Spicer-Simson, RN:
"In recognition of his services in command
of an Allied flotilla on Lake Tanganyika on
the 9th February, 1916, when, after a chase
and running fight lasting 3¼ hours, he sank
the German gunboat "Hedwig von Wiss-
mann."
p.5418
DSC
Lieut. Alfred Edward Wainwright, RNVR
"In recognition of his services in command
of a motor-boat on Lake Tanganyika on the
occasion of the destruction of the German
gunboat "Hedwig von Wissman" on the
9th February, 1916."
http://www.london-gazette.co.uk/issues/29886/supplements/10Gazette Issue 29886 published on the 29 December 1916, p.10
DSC
Surgeon Hother McCormack Hanschell, RN:
"In recognition of his services with the Tan-
ganyika Flotilla. The comparative im-
munity from sickness enjoyed by the mem-
bers of the expedition was due to the unre-
mitting care bestowed by Surgeon Hanschell
on the health of the personnel and on the
sanitary state of the camps and vessels."
Lieutenant Arthur Darville Dudley, RNVR:
"In recognition of his services with the Tan-
ganyika Flotilla. He showed great coolness
and skill in handling his ship in all circum-
stances."
http://www.london-gazette.co.uk/issues/30182/supplements/7070Gazette Issue 30182 published on the 13 July 1917,p.7070-7071
Part III. - THE TANGANYIKA NAVAL EXPEDITION
Awards to members of the Expedition:
Distinguished Service Order and Special Promotion to Commander
Commander G. B. Spicer Simson, R.N.
Distinguished Service Cross
Lieutenant A. E. Wainwright, R.N.V.R.
Lieutenant Arthur Dudley, R.N.V.R.
Surgeon H. McC. Hanschell, R.N.
Distinguished Service Medal
Actg. Chief Petty Officer W. Waterhouse, R.N.
Petty Officer 1st Class D. J. Murphy, R.N.
Petty Officer D. Flynn, R.N.
Petty Officer William Sims, R.N.
Petty Officer Mechanic Chas. Ernest Cobb, R.N.A.S.
Petty OFficer Mechanic Donald McLean Graham, R.N.A.S.
Engine Room Artificer 1st Class H. Berry, R.N.R.
Engine Room Artificer 1st Class J. S. Lamont, R.N.R.
Signalman George Sydney Tasker, R.N.V.R.
Able Seaman Herbert Wm. Marsh, R.N.
Able Seaman J. Brien, R.N.R.
Seaman G. Behenna, R.N.R.