Below are a list of links to additional sites/sources relating to Ostrowiec:
YIZKOR BOOK (Published 1949)
Language: Yiddish
Place: Buenos Aires
Publisher: Landslayṭ fareyn fun Osṭroṿtse un umgegnṭ in Argentine

YIZKOR BOOK (Published 1971)
(above links to view and download options)
Language: Yiddish, English, Hebrew
Place: Tel Aviv
Publisher: Irgun yotsʼe Osṭrovtsah be-Yiśraʼel
Geshuri, Meʼir Shimʻon (Author),
Silberberg, Gershon, 1907- (Author)

Yizkor book in text version after OCR sannning
The text contains many OCR scanning errors and is not complete.
Additional Resources
Ostrowiec Books
Books/sefarim that were published by Ostrowiec authors/institutions before the Holocaust or were published by survivors from Ostrowiec
Poland
Blogs:
Websites:

Zydzi Ostrowieccy: zarys dziejow
Author: Waldemar R. Brociek
Contributors: Adam Penkalla, Regina Renz.
Publisher: Ostrowiec Swietokrzyski: Muzeum Historyczno-Archeologiczne (in Polish with summary in English)
Creation Date: 1996