|  John Edward Sanders is the creator of 'Nicholas Pym', an agent for Oliver Cromwell in 17th century England. | 
Titles and year of publication:
| 1) A Firework for Oliver | 1964 | 
| 2) The Hat of Authority | 1965 | 
| 3) Without Trumpet or Drum | 1966 | 
| 4) Cromwell's Cavalier | 1968 | 
| 5) Roundhead Retreat | 1971 |