The Union of Russian Teachers

 27A Katolu st. - The Union of Russian Teachers in Latvia (formerly the Union was situated at 2 Samarina St., 13 Ludzas St., 1 Gaiziņu St., 112 Maskavas St., 20 Sadovnikova St.)

Russian Free Library of the Russian Teachers Union. Now this library (under another name) is situated at Maskavas St.