Maripuu, Jakob;  Marka, Friedrich;  Markvardt, Evald;  Martens, Ralf;  Martin, Artur;  Martinson, Johann;  Martinson, Oskar;  Martinson, Roman;  Masik, Herberz;  Masik, Jaan;  Massmann, Helmuth;  Matsina, Otto;  Matson, Eduard;  Melnikov, Dimitri;  Meo, Johanna;  Mesi, Aleksander;  Metusala, Lembit;  Michels, Aleksander;  Michelson, Julius;  Metusala, Eugen