From the top of my head (just for the period mentioned)…
Bac Ninh – Boshin War
Brigade Games – Victorian (some, not all)
Brigade Games – Old West
Brigade Games – First World War (some, not all)
Brigade Games – 1920s "Mob Wars"
Empress – New Zealand Wars
Empress – Anglo-Zulu Wars
Empress – Spanish Civil War
Empress/Mutton Chop – Very British Civil War
Musketeer – First World War (some, not all)
Old Glory/Battle Honors – First World War (some, not all), Very British Civil War
Tsuba – Russo-Japanese War
Tsuba – German Revolution
Warlord/Radetsky – Crimean War
Surely some are missing here. Maybe ask Paul to respond himself. Just too prolific to keep track of, that man.