Thanks you for the Histoire Illustree d'un Corps Belge...
At least we know that the Colonne Vuide was used, and performed well for a great body of troops under the conditions it was in. We know the exact location of the 84e, that the 92e and 112e were deployed, and most of all...the numbers do not add up ;-)
But I do think I met the intent of this posting, but of course that is no longer enough. For I suppose I shall need to dig into the Histoires of the following...9e leger, and 18e leger to see if they were also in the Colonne Vuide.