- socialhistory.org bwsa/biografie/dreesDe bewaarde stem van Willem Drees Sr. (Amsterdam 1991); W.J. van Braband e.a., 'Het gelijk van Drees' in: Openbare uitgaven, nr.
- wiki.kidzsearch.com wiki/Willem_DreesWillem Drees ( Dutch pronunciation (info • help); July 5, 1886 – May 14, 1988) was a Dutch politician of the Labour Party (PvdA) and its predecessor the SDAP.
- universiteitleiden.nl en/staffmembers/willem-dreesWillem Drees. Professor emeritus Religious Philosophy. Name. Prof.dr. W.B. Drees. Telephone. +31 71 527 2171.
- liquisearch.com willem_dreesWillem Drees ( Dutch pronunciation) (July 5, 1886 – May 14, 1988) was a Dutch politician of the Labour Party (PvdA).
- researchgate.net publication/353413253_WILLEM_…Willem B. Drees, a former dean of humanities, makes a spirited defense of the worth of the humanities and of their continued place in higher education.
- kacyasindayim.com willem-drees-dogum-gunu-tarihi-…Willem Drees Doğum Tarihi: 05 Temmuz 1886 Pazartesi. Willem Drees Kaçıncı Doğum Yılı: 137. yıl. Ölümünden Sonra Geçen SÜre
- turtledove.fandom.com wiki/Willem_DreesType of Appearance: Contemporary reference (unnamed). Willem Drees (5 July 1886 – 14 May 1988) was a Dutch politician of the Labour Party (PvdA).
- findatwiki.com Willem_Drees_Jr.Relatively young compared to his parents; his father Willem Drees died at the age of 101 and his mother Catharina Hent died at the age of 85.
- commons.wikimedia.org wiki/Category:Willem_DreesNederlands: Willem Drees (1886-1988) was een Nederlands politicus (minister-president 1948-1958). English: Willem Drees was a Dutch politician (Prime Minister).
- Alchetron.com Willem-DreesDrees was a Teetotaler, and also a Freemason. Willem Drees died on May 14, 1988 in The Hague, two months before his 102nd birthday.