Russian Social Democratic Labour Party members

This category includes members of Russian Social Democratic Labour Party. This category includes the party's Menshevik members as well as Bolshevik(Old Bolshevik) faction after the party split (but prior to 1918)—those who joined the Bolsheviks in 1918 and later should be listed in the "Bolsheviks" category only, while those who joined prior to 1918 should be listed in both categories.