
William Alcock Tully (1830-1905) was born in Dublin, Ireland and came out to Hobart on a convict ship as a religious instructor in 1852.
He became a road surveyor and worked his way up to inspecting surveyor before moving to Queensland as a commissioner of crown lands in the Kennedy and Warrego pastoral districts in 1863. He was appointed surveyor-general in 1880. The Mackay River was renamed the Tully River after William Tully in the 1870s. The town of Banyan was surveyed for the construction of a sugar mill in 1924 and it too was renamed Tully after the Surveyor-General.

Tully-Mission Beach Road, 1968
References & Reading
L. J. Duffy, Australian Dictionary Biography, Melbourne University Press, 1976
Wikipedia
Cassowary Coast Libraries