Thanks for the list but it's the other way around.
Bitcoin Clashic forked from Bitcoin at block 478559 from the BTC chain.
Then Bitcoin Cash forked from the Bitcoin Clashic chain at block 504032 (Nov 13, 2017)
Check
https://chainspl.it/You are correct, I did have the incorrect Block reference for "Bitcoin Clashic", and I fixed that. But I'm not sure I understand the last line, according to Bitcoin cash's website, it was forked on at Block 478558, which happened on August 1, 2017.
"All Bitcoin holders as of block 478558 are also owners of Bitcoin Cash. All are welcome to join the Bitcoin Cash community as we move forward in creating sound money accessible to the whole world."That's correct

Bitcoin Clashic is a legacy chain, Bitcoin Cash hard-forked from Clashic on November 13, 2017
Please make research if you want, and corrected
Many people is confused about that