post, we mentioned:
SM Stirling's Draka History as extending an alternative timeline into the future;
Anderson's first two future histories as presenting alternative versions of Mars;
original versions of Mars by Edgar Rice Burroughs (ERB) and CS Lewis;
composite versions of Mars by Alan Moore and Larry Niven;
Lewis' Ransom Trilogy and alternative Earth;
Anderson's Old Phoenix -
- and concluded by suggesting a synthesis of the Old Phoenix with various fictional versions of Mars, mentioning specifically ERB's green Martians and the colonists of Mars in Anderson's second future history.
Moore composites Wells, ERB, Arnold, Lewis and Moorcock whereas Niven composites ERB, Bradbury, Lewis, Wells and Weinbaum. Thus, we have referred to more than we realized.