Allan was the husband of MARY EMMA MAWBEY (1857-1927), the 7th of 10 children of Henry Mawbey 1, a Victorian pioneer settler, and horse-racing fan.
According to Wikipedia, Allan made his first class debut for Victoria in an inter-colonial match against New South Wales in 1869. In 1878 he went on the Australians tour to England where he became regarded as a fine cricketer, both at home and abroad.
The following year he played in the third Test cricket match, having declined selection for the first two Tests because he wanted to attend the Warrnambool Show.
Allan was also a leading Aussie Rules footballer for the South Melbourne Football Club in the Victorian Football Association.
For where he sits on the Victorian Mawbey family tree, see my associated blog, MAWBEY FAMILY AUSTRALIA - VICTORIA, page HENRY MAWBEY FAMILY TREE