As a young man George went to Uruguay, South America where his brothers John and Allan were stockmen and then, following a failed business venture, Glasgow Herald, 1871 to Australia in 1872, where his cousin Sir James McCulloch was a prosperous merchant and politician.
As a young man, circa 1865, McCulloch travelled to Uruguay, South America where his older brothers John and Allan were stockmen. In May 1871 McCulloch sailed for Melbourne in Australia, where his cousin Sir James McCulloch was a prosperous merchant and politician.