In 1996, on the indications provided by Gilles Devecqueterre, I could reconstitute the list of the various mainteneurs of the Passage since his construction.
- from 1878 to 1903: Nicolas Froidebise - Architect.
On each Passage Place towards the Obscure World a maintainor is affected. The maintainor fills his functions during a 26 years period and form his substitute during the three last years of his mandate. With regard to the Léopold II Gallery, all the maintaineurs fulfilled their mission completely, except Antoine Ducarmes who was shot for spying in 1918 by the occupant.
Each maintainor must
obligatorily follow a literary or graphic occupation and carry out a "chronicle of
the Passage" according to the notes provided by his predecessor. A double of these
files of the "memory of the Passages" is preserved on the Obscure Continent.