Complex sentence: Mencken also published many works under various pseudonyms, including Owen Hatteras, John H. Brownell, William Drayham, W. L. D. Bell, and Charles Angofff.
Split into simpler sentences: Mencken also published many works under various pseudonyms. These included, among others, Owen Hatteras, John H. Brownell, William Drayham, W. L. D. Bell, and Charles Angofff.