Robert Logan Jack was government geologist in Queensland, Australia, for twenty years. There is a minor waterway on Cape York; Logan Jack Creek, whose outflow is located some 7 kilometres from Ussher Point, which is named after him.
- Occupation
- geologist, scientist
- Citizenship
- United Kingdom of Great Britain and Ireland
- Born
- September 16, 1845
- Died
- November 6, 1921