Well, according to our research, Henri Roorda van Eysinga (1870-1925, who often wrote under the pseudonym Balthazar) was a Swiss educator, humorist, anarchist, and pacifist who wrote everything from math textbooks to plays to essays. Hardly known in the US, he is feted in an exhibition at the Musee Historique de Lausanne.

Beinecke Library has added a small group of books and a typescript of a play “The League against Stupidity”