Peter Jon de Vos explained

Peter Jon de Vos (December 24, 1938 – June 9, 2008)^[1] was an American ambassador to Costa Rica, Guinea-Bissau, Liberia, Mozambique and Tanzania.^{[2] [3]}

Notes and References

1. http://www.presidency.ucsb.edu/ws/?pid=20929 Nomination of Peter Jon deVos To Be United States Ambassador to Tanzania
2. Web site: Peter Jon de Vos Obituary (2008) Sun Journal.
3. Web site: Peter John de Vos - People - Department History - Office of the Historian.