Big Bill abandoned his family and assumed the name William Levingston. As William Levingston, he married Margaret Allen. He had 6 children with Eliza (1st marriage), none Margaret (2nd marriage), and 2 children with Nancy Brown.

• http://en.wikipedia.org/wiki/William_Avery_Rockefeller

======================

From FindAGrave:

Dr. William Levingston is the pseydonym for William Avery Rockefeller who was the father of John Davidson Rockefeller, the richest man in America at the turn of the 20th century.

"Dr. William Levingston" was not a real medical doctor but rather a vendor of proprietary (patent) medicines. He was also a proven bigamist. In fact, [...] although he did not first get married until the age of 27, by being a bigamist William Avery Rockefeller was able to be married a total of 103 years even though he died at the ripe old age of 96.

He was married to Eliza Davidson for 52 years and to Margaret Allen for 51 years.

Reference: Chernow, Ron. Titan: The Life of John D. Rockefeller, Sr. New York: Random House, 1998.

Further note: He should be listed [...] as both William Avery Rockefeller and Dr. William Levingston.

=====================