Charles Bertie was in the military, as well as his younger brother Christopher. In 1915, he was listed in the London Gazzette under Territorial Force, Yeomanry, 2nd Lieutenant. The military records are tricky as there were quite a few Charles Crisps.
I believe he married someone with the last name Stuart in 1920.
He died at the age of 65 in Bournemouth, Dorset, England.
Slight confusion: There was another Charles Bertie Crisp born around the same time, 1897 in Suffolk. He died in 1977. I have confirmation of the correct death here--as the last name is BIRCH CRISP.