The Cavalier or Royalist party were supported by the Roman Catholics of the old and influential families of the kingdom; and some of the Dissenters, who were disgusted with the treatment they received from Cromwell, occasionally lent them a kind of passive aid.
The "stwuns" which built the oven, and which "came out of the Blakeney Quaar," were the immediate followers of the Marquis of Worcester, who held out to the last steadfastly for the Royal cause at Raglan Castle, which was not surrendered till 1646, and was, in fact, the last stronghold retained for the King.
"One thing of Gaarge Ridler's I must commend, And that wur vor a notable theng; He mead his braags avoore he died, Wi' any dree brothers his zons zshou'd zeng."
This meant that the King, "before he died," boasted that notwithstanding his present adversity, the ancient constitution of the kingdom was so good and its vitality so great that it would surpass and outlive any other form of government, whether republican, despotic, or protective.
"The good ale-tap" was an allusion, under cover of a similarity in the sound of the words "ale" and "aisle," to the Church, of which it was dangerous at that time to be an avowed follower, and so the members were cautioned that indiscretion would lead to their discovery and "overthrow."
The allusion here is to those unfaithful supporters of the Royal cause who "welcomed" the members of the Society when it appeared to be prospering, but "parted" from them in adversity, probably referring ironically to those lukewarm and changeable Dissenters who veered about, for and against, as Cromwell favoured or contemned them.