LEUT Norman Douglas Holbrook, RN, was awarded the VC for outstanding bravery while commanding HM Submarine B11, during the first successful penetration of the Turkish minefields at the entrance to the Sea of Marmara, and for sinking the Turkish ship MESSOUDIEH.
The town of Germantown, (an unpopular name during WWI), in NSW, was renamed Holbrook in his honour. The fin and casing of HMAS OTWAY, (Oberon class submarine), was gifted to Holbrook town in 1982, as a permanent memorial to LEUT Holbrook.