Frank Cornelius-Wheeler was born in Southsea [or Portsea Island - sources differ], Hampshire, England in 1879. Nothing is known about his training. In the 1911 England Census he gave architect as his occupation. Drawings and plans of a house designed by him are illustrated in Designs for One Hundred Ideal £1,000 Houses. Being copies of the hundred best designs entered in the 1912 Daily Mail Architects' Competition (1912 p.115).
In the 1920s he was a partner with Percy Neville Wood and George Dearie Russell in a boiler-making firm in London. The partnership was dissolved in 1926.
Cornelius-Wheeler's address was given as Trerose, Homefield Road, Sudbury, Middlesex in 1911; 18, Old Cavendish Street, Oxford Street, London in 1912; and Flax Cottage, Roydon, Essex, and 29, Bedford, Row, London in 1933. He died in Epping, Essex in 1935