Complex sentence: David Davis Walker was born on January 19,1840 on a farm near Bloomington, Illinois to George E. Walker (1797--1864) and Harriet Mercer (1802--1869).
Split into simpler sentences: David Davis Walker was born on January 19,1840 on a farm near Bloomington, Illinois. His father, was George E. Walker (1797--1864) and his mother, Harriet Mercer (1802--1869).