[2][1] From their commencement, in 1967, Myall collected Machins and was a founding member of two specialised clubs; the Great Britain Decimal Stamp Book Study Circle (GB DSB SC) and the British Decimal Stamps Study Circle (BDSSC), being the founding president of the BDSSC, a position he held for 18 years.
[4] Myall was not content with the way BDSSC and the Stanley Gibbons catalogue were handling the potential criteria to study Machin stamps.
It was regularly updated by the Deegam Reports sent by e-mail to book owners and printed for their members by some philatelic associations.
[5] Aside from the Machins, Douglas Myall collected British perfins on covers and practised macro photography of insects.
[5] Pursuant to arrangements made by Myall before his death, two experienced philatelists, Hanns Fasching and Gerry Fisk, are continuing work on The Complete Deegam Machin Handbook.