Complex sentence: Yda Hillis Addis, a.k.a. Yda Addis, 1857--disappeared 1902, first American writer to translate ancient Mexican oral stories and histories into English and publish them in The Argonaut, a bi-monthly San Francisco, journal, founded in 1877 by Frank M. Pixley.
Split into simpler sentences: Yda Hillis Addis, a.k.a. Yda Addis (born 1857, disappeared 1902) was the first American writer to translate ancient Mexico oral stories and histories into English. Addis published these stories in "The Argonaut", a bi-monthly San Francisco journal, founded in 1877 by Frank M. Pixley.