When Lewis Thomas Casson was born on 26 October 1875, in Birkenhead, Cheshire, England, United Kingdom, his father, Thomas Casson, was 33 and his mother, Laura Ann Holland-Thomas, was 31. He married Dame Agnes Sybil Thorndike in 1908. They were the parents of at least 2 sons and 2 daughters. He lived in Denbigh, Denbighshire, Wales, United Kingdom for about 10 years and Hampstead, London, England, United Kingdom in 1901. He died on 16 May 1969, in London, England, United Kingdom, at the age of 93.
English (northwestern): from the Middle English female personal name Casse (probably a pet form of Cassandra; see Cass ) + son, hence ‘son of Casse’. Alternatively, a variant of Catson, ‘son of Cat(t)e’, from a pet form of the Middle English female personal name Catelin (see Catt 2 and Catlin ) + son.
Irish (Mayo and Leitrim): variant of Cashin .