Late 1870’s
Michael Cullinan has a number of jobs in Port Augusta, South Australia, Australia: horse-work, fencing, and wheat lumping (carrying bags of wheat on the shoulders).
He also works building railway lines for Barry Brooks and Fraser who were building a railway line through the wheat country north of Port Augusta (Source: Doug Curran, The History of James Cullinan, pp. 13, and Phyllis Plant, letter).
To serve the mining and pastoral industries in the far north of the state, the Great Northern Railway was built from Port Augusta to Quorn in 1879, with the line reaching Marree [outback town at the junction of the Birdsville and Oodnadatta Tracks] in 1883, and Oodnadatta in 1891.
Source: https://nrm.org.au/connect/blog/11-a-brief-history-on-railways-in-south-australia
Later, Michael works on the goods van that carted supplies to the head of the railway line (Source: Phyllis Plant, letter). He also works with a survey party in the hills around Adelaide (Source: Doug Curran).
Related:
1878: The South Australian Governor “turns the first sod of the Port Augusta and Government Gums Railway.” (Source: The Express and Telegraph, Adelaide, South Australia, 18 January 1878, p2)

Locomotive no.53. Used on Port Augusta and Government Gums (Farina) Railway. Built in Manchester in 1877. Used on construction work by Barry, Brooks and Fraser until 1882 when sold to South Australian railways.” Source: https://collections.slsa.sa.gov.au/resource/B+9843
Further information on Commonwealth Railway Locomotives can be found at: https://comrails.com/cr_locos/r_nf.html
