Selected records of the County Starosty in Ostrów Mazowiecka Kreishauptmannschaft Ostrów Mazowiecka Starostwo Powiatowe w Ostrowie Mazowiecka (Sygn. 489) : Wybrane materialy

Circulars and ordinances of authorities, official correspondence, reports on activities, quota reports, sending people to work, minutes of meetings, materials on the population policy of the occupant, censuses, lists of employees of the office of the starost, materials on the Polish resistance movement, reports of gendarmerie, interrogation of Jews in cases of illegal border crossing, correspondence with the Judenrat from Wegrów, matter of control of correspondence, daily orders, certificates, receipts, documentation related to the implementation of the antisemitic exhibition entitled "Juedische Weltpest" and many other very important materials regarding every aspect of the population's life under German occupation, resistance, forced labor and the functioning of the office of the County Starost.

Arranged in nine series: 1. Office of the County District; 2. Security Police. District Department in Ostrów Mazowiecki; 3. Office of the Interior: Population and social welfare matters, Personnel Office, Propaganda; 4. Office of Police Matters; 5. Trusts; 6. Office of Food and Agriculture; 7. School Office; 8. Siedlce Labor Office. Branch of Ostrów; 9. The Management of the Union of Municipalities Ostrów Mazowiecka.