3 Austin charities part of famed philanthropist's $4 billion endowment MacKenzie Scott has donated billions to U.S. charities this year, including Meals on Wheels of Central Texas. Author and philanthropist MacKenzie Scott (many know her as the former wife of Amazon CEO and billionaire Jeff Bezos) has donated more than $4 billion to charities across the nation — including in Austin and Central Texas. In a post on Medium, Scott notes that she and her advisers have disbursed some $4,158,500,000 in gifts to 384 organizations across all 50 states, Puerto Rico, and Washington, D.C. over the last four months. This is in effort to “accelerate my 2020 giving through immediate support to people suffering the economic effects of the crisis,” Scott writes.