William George "Twit" Tasker (15 October 1891 – 9 August 1918) was an Australian World War I soldier who had been a national representative rugby union player making six Test appearances for the Wallabies.

He was selected in the Australia national rugby union squad which toured North America in 1912;[11][12][13][14][15] although he did not play a Test.

The squad was overwhelmed with hospitality and lacking strong management they reveled in the social life and undergraduate antics of the college fraternity houses in which they were billeted.

In what must be the worst record of any Australian touring team, the squad lost all of their Canadian matches among five defeats.

An incident occurred on the 1912 tour of the United States when Tasker's rough play upset an American referee.

Tasker was severely wounded at Quinn's Post at Gallipoli with shell fragment damage to his legs and ankle.

Here was a young representative Australian Rugby Union five-eighth, who played against New Zealand, America and Queensland, and won honors for his school, Newington College.

In France another of the 1914 Blues of NSW who had been a hero with him at Gallipoli, Captain C. Wallach, M.C., recently fell, and now Twit Tasker, the youngest of the lot, has gone down with the colors flying.His spirit is that which will permeate the men and women destined to make of Australia the salt of the earth in days to come, when few here now will be here to see the greatness come to the land and its people – a greatness born of the turmoil of the war.In the same issue, the sporting journalist, "The Rambler", made these comments: Rugby Union footballers continue to, pay the price of war.

About six weeks ago news arrived that he had been seriously wounded, but as the message received last Saturday states, he was killed in action, he must have successfully made another attempt to get into the firing line.

It is one of the many remarkable instances of pertinacity the war has furnished.A very fine footballer, he captained Newington College in 1910-11, the Black and White winning the premiership in the latter year, when he also led the Combined Schools in their successful battle against University.