Cecil Francis or Reginald C Heyworth-Savage, OBE

This person is unconfirmed - A search for Colonel Heyworth Savage tends to bring up Cecil Francis (further details below) but searching in Family Search for Cecil Heyworth brings up RC Heyworth born in Gloucestershire. (Reginald seems to be a family name so this could be the correct person). Parents John and Emily living in 1871 in Marylebone, London.

As articles about Bradwell refer to John Heyworth inheriting Bradwell from his Grandfather Colonel Heyworth Savage this would suggest that Cecil Francis is most likely correct. According to: Lives of the First World War:

Cecil Francis Heyworth Savage was born in Westbury on Trym, Bristol, United Kingdom in 1864.

Cecil Francis Heyworth Savage died in Oxfordshire, United Kingdom in 1949; the death was not war related.

From Free BMD:

Births Jun 1864 (>99%) HEYWORTH Cecil Francis Clifton 6a 135 Scan available - click to view