Nah - Bristol City have won four (1922–23 (South), 1926–27 (South), 1954–55 (South), 2014–15). And there may be others with more (they were just the first club I thought of, and checked).
At the risk of being called unambitious.....honestly at this point, I'm just happy that we're going to hit January, and the mid-point of the season, and we're not only still having the discussion about whether we can be Champions - but it's a realistic proposition, we're not all just being delusional.
Given that there's a bunch of teams in this league that have far, far greater resources than we do - it's a great achievement so far from KR and his team.
Keep the band together through January, find someone who can replace Cadden, and add a couple more depth pieces and there's no reason we can't win the league.
Noone else in the league has a core to the team that's as good as Dickie-Brannagan-Baptiste-Henry-Taylor.