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William Y Anderson


William Yngve Anderson (June 28, 1921 – May 9, 2011) was a Swedish American fighter ace of World War II with seven official victories in Europe, flying P-51 Mustang fighters in the U.S. Army Air Forces (USAAF). He was born in Kramfors, Sweden.

In 1922, Anderson's family emigrated from Sweden to Chicago, in the United States of America. Anderson joined the USAAF in September 1941. After completion of training in 1943, he was stationed at RAF Boxted, near London, England, on "Diver" patrols, defending London from V-1 flying bombs.

Anderson shot down a V-1 on June 17, 1944 and it is possible but not confirmed that he shot down more V-1s. His official tally of 7, however, does not include V-1s, as shooting down pilotless aircraft did not officially count towards his victory tally. Only Swedish fighter ace.


Units served with

  • 20th Fighter Group

    20th Fighter Group

    In August 1943, the 20th Fighter Group arrived in Clyde, Scotland, before travelling to Kings Cliffe, Northamptonshire, which was to be their base for the rest of the war. The Group flew 312 missions before their last mission on 25 April 1945. The...

  • 354th Fighter Group

    354th Fighter Group

    The Group moved to England in the autumn of 1943 and was assigned to the Ninth Air Force in December 1943. The Group were the first to fly P-51 Mustangs operationally and in their bomber escort missions pushed to find the long-range limits of the...

  • 353rd Fighter Squadron
  • 79th Fighter Squadron

Associated Place

  • Boxted

    Military site : airfield
    Boxted was built for heavy bombers and became operational from May 1943. In the few months B-26 Marauders of the 386th Bomb Group were stationed there, there were two night attacks by the Luftwaffe. On 17 August 1943, one man was killed when bombs...

  • Lashenden

    Military site : airfield
    Close to but completely separate from RAF Headcorn, Lashenden was built for the RAF during 1942-43 as an Advanced Landing Ground (ALG), initially as a light bomber base and then as a training base for mobile fighter squadrons. Enlarged and improved for...

  • Gael

    Military site : airfield


Event Location Date
Born Kramfors, Sweden 28 June 1921
Died 9 May 89


Date Contributor Update
11 September 2019 06:58:08 fugari Changes to nickname, service number, role, awards and place associations

JCook Archives

Date Contributor Update
14 July 2017 11:15:37 113337 Changes to biography

Date Contributor Update
14 July 2017 11:11:43 113337 Created entry with surname, middlename, firstname, nickname, nationality, service number, highest rank, role, biography, events, unit associations and place associations