Henry Dighton Thomas (1900-1966) was a geologist and academic at the University of Cambridge and Natural History Museum.
[1] He attended Westminster City School in his youth and with the encouragement of one of his Masters, pursued geology as a favourite subject.
He won an Open Scholarship to Emmanuel College, Cambridge where he took his degree in 1923, with a Second Class Pass in Part II of the Natural Sciences Tripos.
Lang, the Keeper of the Museum, and they published the Index of Palaeozoic coral genera in 1940, with Bristol academic Stanley Smith.
During World War II, the collections he helped to manage were moved to Lincolnshire to protect them from the bombing of London which was anticipated.