I am a descendent of William, who was the son of Thomas Jefferson Cooley (born 23 Oct 1837 in Montgomery Co, IN) and grandson of Samuel Means Coolley (possibly born 1 Jan 1800 in PA).
William had 2 sons Franklin Arthur and Victor and he died in WA state 3 July 1892 at age 29. His son Franklin (my grandfather) was married twice. His son from his first marriage, William Franklin II and Bill has a grandson Willy--I am assuming the fourth--his uncle, Bills son, was the third.
If you are researching this line I would love to hear from you!