Further information on Robbie's research will be posted here when he next emerges from the archives... In the meantime, here's a link to Volume 7 of Edward, Lord Clarendon's History of the Grand Rebellion, which contains additional illustrations and extracts from the Clarendon papers mentioned in the episode.
A very Victorian view of the Civil War: W.F. Yeames' 'And when did you last see your father?'.