Oswald Wirth

Joseph Paul Oswald Wirth (5 August 1860, Brienz, Canton of Bern – 9 March 1943) was a Swiss occultist, illustrator and writer.

Oswald Wirth's long career writing about freemasonry and related esoteric topics appears to have begun in 1880 with an eight-page paper titled Catholicisme et Franc-Maçonnerie listed in the collection of the Bibliothèque nationale de France.

https://en.wikipedia.org/wiki/Oswald_Wirth