Jun 1910 Союз Молодежи [Soyuz Molodezhi : Union of Youth]

Riga: Riga (exact location unknown)

Dec 17, 1911‒Jan 23, 1912 (Dec 4, 1911‒Jan 10, 1912 o.S.) Союз Молодежи [Sojuz Molodezhi : Union of Youth]

Saint Petersburg: Nevsky 73

1912 Союз Моледежи [Soyuz Moledezhi : Union of Youth]

Moscow: Moscow (exact location unknown)