Belgian Army personnel of World War I

Georges Henri Joseph Édouard Lemaître ( lə-MET-rə; French: [ʒɔʁʒ ləmɛːtʁ] ; 17 July 1894 – 20 June 1966) was a Belgian Catholic priest, theoretical physicist, mathematician, astronomer, and professor of physics at the Catholic University of Louvain. He was the first to theorize that the recession of nearby galaxies can be explained by an expanding universe, which was observationally confirmed soon afterwards by Edwin Hubble. He first derived "Hubble's law", now called the Hubble–Lemaître law by the IAU, and published the first estimation of the Hubble constant in 1927, two years before Hubble's article. Lemaître also proposed the "Big Bang theory" of the origin of the universe, calling it the "hypothesis of the primeval atom", and later calling it "the beginning of the world".

Joseph Alphonse Marie English (Bruges, 5 August 1882 – Vinkem, 31 August 1918) was a Flemish draughtsman and painter.

Hendrik Emil (Rik) Wouters (21 August 1882 – 11 July 1916) was a Belgian painter, sculptor and draughtsman. Wouters produced 200 paintings, drawings and sculptures in his 34 years before his illness-caused death. he died partway through the First World War on 11 July 1916 in Amsterdam. A sculptor, painter, draughtsman and etcher of typically fauvist style, Wouters' art resembled the works of artists including Henri Matisse, Paul Cézanne and André Derain- the "forefathers" of Fauvism.Rik Wouters' art, according to Adams (2018), reflects themes of "warmth and tenderness", his paintings characterised by an array of colours and brush strokes, frequently leaving unpainted canvas to increase this effect. Often depicting his muse-wife, Hélène, Wouters disregarded hidden symbolic inferences within his art in favour of a more "simplistic and genuine" style, distancing himself from mainstream artists. Wouters was educated in fine arts academies in Mechelen and Brussels, however his works usually slightly differ stylistically from other Fauvist artists.Wouters is known primarily for his sculptures and paintings including 'Lady in blue' (1914), 'Self-portrait with cigar' (1914) and ‘Chrysanthèmes’ (1915).