HistoryLink.org  the free online encyclopedia of Washington state history www.historylink.org

Forum  Army Air Forces  http://forum.armyairforces.com/search?searchid=310618&phrase=olivia%20orgnacco&high=olivia%20orgnacco

AFHRA  Air Force Historical Research Agency  https://www.afhra.af.mil/

https://aad.archives.gov/aad/display-partial-records.jsp?f=3475&mtch=2&q=POLLOCK+N.++DONALD&cat=all&dt=893&tf=F

Aldo Taboga  https://www.natisone.it/0_store/personaggio/personaggio08.htm

Olivia Orgnacco Di Toma  https://www.oliviaorgnacco.it

nuovo sito dedicato alla memoria di Nelson Orgnacco  https://nelsonorgnacco.altervista.org