How many soldiers manned the fort?

A fortress engineer company that operated the searchlights and the minefields and a garrison artillery battery that operated the guns manned Fort Queenscliff. The total war establishment strength of the garrison was about 200 personnel. Militia units based in Melbourne supplemented the garrisons of some of the other forts during wartime. This was a large garrison for a town whose population between 1882-1946 only averaged 2 200.