The Bill and Melinda Gates Foundation ... will also be a new logo for the multi-billion dollar organization. The famous initials now appear yellow on a dark gray background.

The true measure of success, she says, will come years after the grant makers shuts down, in how lives will have changed as a result of its work.

Melinda French Gates entered some of the most powerful circles while leading the foundation she co-founded with her ex-husband, Bill Gates, who announced on Thursday that it will close ...