Alumni of the University of Hawaiʻi system include many notable persons in various walks of life. Senator Daniel Inouye and Tammy Duckworth both are veterans of the US military who were injured in the line of duty then later entered government service. Bette Midler and Georgia Engel are successful entertainers on the national stage. President Barack Obama's parents, Barack Obama Sr. and Ann Dunham, and half-sister, Maya Soetoro-Ng, also earned degrees from the Mānoa campus, where his parents met in a Russian language class. His mother earned three degrees from the University of Hawaiʻi including a PhD in anthropology.