Mr Francis J CLOWES is on the passenger list of the SS Galeka from Cape Town to London, arriving 11 March 1911, although it is noted that he landed at Southampton.
There is also a Mr F CLOWES, age unknown, departing Southampton for Cape Town aboard the SS Tintagel Castle on 6 May 1911, which could be him returning.
(EDIT: On the same ship is a Mr B NICHOLS, who could be the brother of the householder in the 1911 census who is Bernard Parsons NICHOLS, 40, single, born Irchester, Northants, occupation gold prospector. Bernard NICHOLS also appears on ships arriving at Southampton from Durban in 1927 and 1940.)
Adrian