[1] He graduated in 1941 and created a portfolio of numerous prospective designs, though he found buyers for only a few, and among these was a modernist residence in Mar del Plata commissioned by his own father.

[1] Christened the Casa sobre el Arroyo ("House on the Stream") upon its completion in 1946, it was built for his father Alberto Williams — who by then had fallen ill, and thus never lived in the home.

[1] He was invited to display his ideas on acoustics at La Sorbonne, and the Dean of the Harvard Graduate School of Design, Walter Gropius, organized exhibits of his works in 1951 and 1955, on which latter occasion Williams was a guest lecturer.

He later employed the concept for the 1966 Bunge y Born exhibit at the La Rural Exposition grounds and in 1968 for the German Embassy, both in Buenos Aires, as well as for a monument to the reconstruction of Berlin.

[7] A temporary structure used in 1966 as part of the La Rural expo grounds was revived by one of his sons, Claudio, and was included as a centerpiece of a waterfront park inaugurated in 1999 in the Buenos Aires suburb of Vicente López as the Monument to the End of the Millennium.