Sources on Jewish Communities in this section:

Jablonka  Jabłonka [Pol], Yablonka [Rus], Yoblonka [Yid], Jabłonka Kościelna

http://data.jewishgen.org/wconnect/wc.dll?jg~jgsys~community~-504571 JewishGen Locality Page

Mazowieckie  Wysokie Mazowieckie [Pol], Visoka-Mazovietzk [Yid], Visoki [Yid], Mazowieck [Pol, before 1866], Vysokie-Mazovietzkie

[Rus], Visoke Mazovyetsk

http://data.jewishgen.org/wconnect/wc.dll?jg~jgsys~community~-537585 JewishGen Locality Page

http://www.jewishgen.org/Yizkor/Wysokie/Wysokie-Mazowieckie.html Yizkor Book

Sokoly  Sokoły [Pol], Sokoli [Yid], Sokoly [Rus], Sekole

http://data.jewishgen.org/wconnect/wc.dll?jg~jgsys~community~-529340 JewishGen Locality Page

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