Using elbirdo's pitch allocation equation, 1885 Ed Morris (848 IP) is good for 12846 pitches in a season. Over 81 starts, that's 158.6 pitches per start.
1886 Lady Baldwin (642 IP) is good for 10014 pitches in a season. Over 81 starts, that's 123.6 pitches per start.
Looks like they could easily go back to back the whole season.