george humble mumby married eliza mann on 12 october 1876. it is possible he was master of "alfred" at some stage but evidence is lacking. his son (george) michael mumby (13 september 1880 – 22 february 1944) was master of "rob roy" 1913, and the "alfred" may 1917 when she sank, killing crewman charles james thorn. he and mate job eastwood were charged with manslaughter but acquitted. a widower, he enlisted september 1917, served during world war i in the tunnelling corps of the australian army. he married again, to frances hooton (née hooper) in 1919 and took up a farm at curlwaa, new south wales. he enlisted with the citizens' military forces and served as a private during world war ii, during which service he accidentally drowned.