Villem Vardja served as a responsible servant among the Witnesses in the Tartu Congregation and later in the Otepää Congregation in Estonia, one of the former Soviet Socialist Republics.
Villem Vardja melayani sebagai seorang hamba yang mengemban tanggung jawab di kalangan Saksi - Saksi di Sidang Tartu dan belakangan di Sidang Otepää di Estonia, salah satu bekas Republik Sosialis Soviet.