Antidisestablimentarianists

If there is or was such a thing as Antidisestablishmentarianism, there must have been at least one Antidisestablishmentarianist; in fact there must have been several Antidistestablishmentarianists. Have I coined a new "longest word in the English Language?"I doubt it: I'll Google it and expect to be told that someone who supported Antidisestablishmentarianism was properly known as an Antidisestablishmentarian.