- Austria
- Gsellmann
- Reigner
- Belgium
- Schetz
- Garcet
- Vandewattyne
- Wiesen
- Denmark
- Pedersen
- Jensen
- Estonia
- Juks
- Tarvis
- Aliksoo
- Finland
- Alhoranta
- Id
- Hevonkoski
- Homppi
- Kinnunen
- Koivumäki
- Lepisto
- Rytkönen
- Rönkkönen
- Salminen
- Setäla
- Sinistö
- Tuppurainen
- Vanhanen
France: grouping from the perspective of people living outside of France who have a rather general idea of the countries geography and of names of departments and regio's
- France Centre (Paris and around)
- Avezard
- Carrières de Confrécourt
- Chesné
- Chomo
- Corsin
- Dange
- Gandini
- Hurfane
- Isidore (Picassiette)
- Jeannot
- le Lagadec
- Landreau
- Linard
- Monsieur G
- France North East (Champagne/ Elzas area)
- Bindler
- Bourgoin
- Dhièvre
- Renault
- France North (area around and south of Lille)
- Bouriez
- Callot
- Évangélaire
- Goldoni
- Lecoutre
- Litnianksi
- Meyer
- Pecqueur (Charles)
- Pecqueur (René)
- Roussel
- Smilowski
- Vanabelle
- France South East (area around and south of Lyon. Mediterranean coast)
- Barale
- Billy
- Brifaut
- Damidot
- Diaz
- Duffour
- Dutel
- Facteur Cheval
- Grazzi
- Guillaud
- Jacqui
- Julian
- Morales
- Rosa Mir, Jardin de,
- Senis
- Truc
- France South West (Atlantic coast and inland)
- Anonymous
- Albert
- Aubin-Arnaud
- Barret
- Besse
- Billon
- Escaffre
- Favreau
- Gilis
- Guitet
- Michaud
- Pailloux
- Rapeau
- Vriet
- France South (area around and north of Toulouse)
- Barthes
- Bastouil
- Donadello
- Mathey
- Piquemal
- Pillet
- Vidal
- France West (Brittany)
- Ame
- le Breton
- Bothorel
- Coudray
- Darcel
- Fouré
- Gourlet
- Grard
- Lucas
- Morvan
- Raoult
- France West (Normandy and Loire area)
- Anonymous (Villa Mon Désir)
- Cave aux sculptures
- Chasseray
- Chatelain
- Clement
- da Costa Ferreira
- Enrico
- Floc'h
- Hardy
- Lobert de Bouillon Vieville
- Paysant
- Tatin
- Taugourdeau
- Tourquetil
- Vasseur
- Vets
- France (Corsica)
- Marchi
- Mattei
- Periault
- Germany
- Junker
- Meurer
- Greece
- Skiados
- Hungary
- Császár
- Tarodi
- Ireland
- de la Poer
- Ffrench
- Italy
- Airaudi
- Andreoli
- Bartolucci
- Becherini
- Bentivegna
- Bonini
- Cammarata
- Cammi
- Galzerano
- Guatelli
- Leandro
- Lineri
- Manca
- Nannetti
- Pilia
- Rebecchi
- Stagnaro
- Toselli
- Lithunia
- Orvydas
- Netherlands
- van den Brink
- Eisinga
- van Genk
- Glück (Viktor IV)
- Halman
- Ham
- Jezuitengrot (Jesuits Cave)
- Jonkers
- Lankveld
- original post
- update (reports)
- Leegwater
- Schoonbroodt
- Viktor IV
- Wiersma
- Poland
- Wesolowski
- Curylowa
- Russia
- Kirillov
- Rudov
- Spain
- Aquilera Rueda, Antonio
- Ayuso, Longino
- Basanto, Julio
- Cabrissas Gili, Nicolás
- Diaz Falcon, Federico
- Fulledo Alcaraz, Manuel
- Gallego Martinez, Justo
- Gallego Rebollar, José Ramon
- García Naveira, Juan
- Garrido, José Maria
- Gnädinger, Manfred
- Palma Jimenéz, Francisco
- Pasatiempo
- Pujiúla i Vila, Josep
- Rio Cuénca, Francisco del
- Rójo, Maximo
- Salazár Gutiérrez, Carlos (Salaguti)
- Unknown author (Can Segal)
- Villarán, Serafin
- Sweden
- Lander Ericsson
- Jarl
- Eriksson
- Svennberg
- Switzerland
- Dumoulin
- Schulthess
- Ukraine
- Rayko
- Trybushnyy
- United Kingdom, England
- Bilbo
- Bird
- Bruce
- Charge
- Dowdeswell
- Duffy
- Fairnington
- Howard
- Margate Shell Grotto
- Puckey
- Sutton
- Tresham
- Willis
- Wilson
- Wright
- United Kingdom, Scotland
- Batchelor
- Bisset
- United Kingdom, Jersey
- Soudain/Morgan
