John Adams Morgan net worth: John Adams Morgan is an American businessman who has a net worth of $100 million. John Adams Morgan earned his net worth as a descendant of the banker J.P. Morgan and American President John Adams. JP Morgan is his great great grandfather on his father's side and he is great great great grandson of President John Adams on his mother's side. John Adams Morgan has gained notoriety as the ex-husband of Real Housewives of New York cast member Sonja Morgan. Sonja, who was forced to file for bankruptcy in 2011, claims her ex-husband owes her as much as $3 million as part of their divorce settlement and $300 thousand in child support. John lives on a $19 million private island which has made his lack of payment especially frustrating for Sonja. John Adams Morgan is roughly 80 years old and 33 years older than his ex-wife. John and Sonja met while she was working as the hostess at upscale Manhattan Italian restaurant San Pietro. The couple has a daughter named Quincy and separated in 2006.