In that role he had published a book on old coins and commemorative medals which he illustrated with lithographs designed by his son Charles (the father of Gustave).

He studied in the department of weaving at the Nijverheidsschool (Industrial School) in Ghent where he received some drawing classes.

He attended activities organised by the Cercle Artistique et Littéraire, a local artists' society in Ghent.

[2] Until 1880 Den Duyts continued his studies in the Art Society and Cercle Artistique in Ghent, where he maintained close contact with Jean Delvin and Armand Heins.

[4] In 1883, Den Duyts contracted pneumonia, which degenerated into a chronic lung disease from which he suffered for the rest of his life.

In 1892 he was awarded the honorary diploma of the Dresden Art Society after an international exhibition of watercolors, etchings, pastels and drawings.

In the execution of such commissions from local administrations he started with antiquarian inquiries regarding the exactness of the costumes, folk customs and scenery.

In 1890, he worked on a historical procession of the sixteenth century on the occasion of the sixtieth anniversary of Belgium and the inauguration of the statues on the Egmont Square on the Petit Sablon.