Sir William Edmond Logan was born in Montreal, Canada in 1798; his parents were Scottish émigrés, but Logan returned to Scotland to attend school and university.
Later he became the manager of a copper works in Swansea, where his interest in the local coalfield geology began.
In 1842 Logan returned to the land of his birth to become the first Director of the Geological Survey of Canada, where he continued to work for many years, before retiring to West Wales. He died in 1875.
Today, Logan is recognised as Canada’s most important scientist, a trailblazer, and Canada’s highest mountain is named in his honour.
The National Museum of Wales recently dedicated an exhibition to William Edmond Logan where you can find further details about his life and work.