Complex sentence: Born near Sullivan, Missouri, he attended public school and graduated from the Franklin County Mining School in 1838; nevertheless, he is remembered as "almost illiterate" with a taste for poker, bourbon, and tobacco.
Split into simpler sentences: Born near Sullivan, Missouri, he attended public school and graduated from the Franklin County Mining School in 1838. Nevertheless, he is remembered as "almost illiterate" with a taste for poker, bourbon, and tobacco.