I was working on the September 19, 1988 letter, and looked up Quisling in the dictionary, "A traitor who serves as the puppet of the enemy occupying his or her country.", and in another dictionary "someone who collaborates with an enemy occupying force"; and for its origin, "After Vidkun Quisling (1887-1945), head of Norway's government during the Nazi occupation(1940-1945)"
The Pelican poem July 26, 1988 mentions Quisling several times, and says "Quisling is history's name." In the Bits it says that "The house is history" on May 7, 1994.
Does this mean something? I find Quisling to be too unusual a word to be thrown in by chance.
The only thing I could find in the Search was that Quisling might be the name of a cat.