John Nelson Darby, famous religious innovator of The Rapture, was the youngest of six sons, another example in support of Frank Sulloway's thesis

 

J.N. Darby 1800-1882

1996

Sulloway is important for challenging the crisis theory of scientific revolutions propounded by Thomas Kuhn, showing how many revolutionary personalities, who tend to be later or last borns, rebelled against well established consensus views which though long in the tooth were in no danger of going away.

Darby's innovations, interestingly enough, came to him after experiencing serious injuries when he fell from a horse when he was still 26.