Jennifer Rubio, the co-founder of Away Luggage, and tech billionaire Stewart Butterfield have announced they are separating after six years of marriage. Butterfield also has a child, Sonnet, 19, from his previous marriage to his Flickr co-founder, Caterina Fake. Over the course of their marriage, Rubio and Butterfield built an extensive life together beyond their family. Butterfield of the Whitney Museum of American Art and the Dia Art Foundation. Both have said they intend to continue supporting the causes and institutions they have funded jointly through the Rubio Butterfield Foundation.