Mrs. Branagh’s middle son, Henry, is affected with Barth syndrome. In 2013, she started the Happy Heart Walk, an annual fundraising and Barth syndrome awareness event benefiting the Barth Syndrome Foundation. It is now not only an event, but a week long virtual movement that has grown in participators and funds raised over the years. Mrs. Branagh has a BS in Interior Design from Texas Christian University. She lives in the San Francisco Bay Area with her husband, John, and their three young boys.