Is PDF link a reasonably accurate timeline for Tarzan during the 24 books that are (at least in my eyes) clearly canonical?
Born 1888
1888-1907 Jungle Life
1909-1910 Tarzan Finally weds Jane
1911 Charlotte Clayton born
1913 Korak/The Son of Tarzan
… yada-yada-yada
1933 Tarzan's Quest (Immortality at age 45?)
1944 the Last "Tarzan canon" entry I feel good about including.
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Okay, not feeling bound to this timeline outside of Tarzan and there is a lot of "Non-Canon Tarzan" (as in not ERB canon about Tarzan) stuff to ignore.
Before and After I am not so much worried about.
Neither do I really have any interest in trying to tie Tarzan, Carson of Venus, John Carter, and the "Moon" books into one timeline.