Sources on Jewish Communities in this section:

Rutki  Rutki [Pol, Rus], Rutke [Yid], Rutki-Kossaki

http://data.jewishgen.org/wconnect/wc.dll?jg~jgsys~community~-526581 JewishGen Locality Page

Tykocin  Tykocin [Pol], Tiktin [Yid], Tykotsin [Rus], Tykotzin [Ger], Tikotsin, Tuktin, Tyktin

http://data.jewishgen.org/wconnect/wc.dll?jg~jgsys~community~-533770 JewishGen Locality Page

http://www.jewishgen.org/Yizkor/Tykocin/Tykocin.html Yizkor Book

http://www.jewishvirtuallibrary.org/jsource/judaica/ejud_0002_0020_0_20130.html History

http://www.yivoencyclopedia.org/article.aspx/Tykocin History

Wizna  Wizna [Pol], Vizhna [Yid], Vizna [Rus], Wyzne

http://data.jewishgen.org/wconnect/wc.dll?jg~jgsys~community~-535903 JewishGen Locality Page

http://www.jewishgen.org/Yizkor/slutsk/slu437.html Yizkor Book

Zawady  Zawady [Pol], Zavady [Rus], Zawada, Zawady Borysówka, Borysówka, Zawady Kościelne

http://data.jewishgen.org/wconnect/wc.dll?jg~jgsys~community~-538998 JewishGen Locality Page

http://kehilalinks.jewishgen.org/Zawady/Zawady/Memories.html KehilaLink