They used to purchase aircraft for the RAF during the war, hence the adoption of the name.
https://en.wikipedia.org/wiki/Fellowship_of_the_Bellows
http://www.raf.mod.uk/history/263squadron.cfm
As they disbanded in 63 for the final time, if you were about twenty years old on the squadron, you would be in the region of 74 years old now, one would surmise there are not enough survivors remaining to justify having an association. Sadly time catches up with us all.
..