Abigail Johnson
Abigail Johnson[/caption]Allison Sarofim
From one heiress to another. Allison Sarofim is the daughter of Louisa Stude – the heiress to Brown & Root – and Fayez Sarofim, the heir to the Sarofim family fortune. Although Allison currently has a net worth of $1.5 billion, the rest of the inheritance may have to be split and shared with her brother, Christopher Sarofim.