1. Elizabeth Ackert () is an assistant professor in the Department of Geography, University of California Santa Barbara (UCSB), in Santa Barbara, California.
2. Sung Hee Hong was an undergraduate research assistant in the Department of Geography, UCSB, when this work was conducted.
3. Jessica Martinez was an undergraduate research assistant in the Department of Geography, UCSB, when this work was conducted.
4. Gabriel Van Praag is an undergraduate research assistant in the Department of Geography, UCSB.
5. Pedro Aristizabal is an operations support assistant at Bourns Inc., in Riverside, California. He was an undergraduate research assistant in the Department of Geography, UCSB, when this work was conducted.
6. Robert Crosnoe is Rapoport Centennial Professor of Sociology, University of Texas at Austin, in Austin, Texas.