Complex sentence: Samuel Francis Smith (October 21,1808--November 16,1895), Baptist minister, journalist and author, is best known for having written the lyrics to "My Country, 'Tis of Thee", which he entitled "America".
Split into simpler sentences: Samuel Francis Smith (October 21,1808--November 16,1895) was a Baptist minister, journalist, and author. He is best known for having written the lyrics to "My Country, 'Tis of Thee", which he entitled "America".