I received the following document on May 12th, 2011 via e-mail from the Statearchive in Rseszow (Archiwum Państwowe w Rzeszowie).
This document is an extract from the the list of married and unmarried Jewish families with an entry for Kalech-Stieber from Brozozów:

Transcription:
Wykaz ślubnych i nieślubnych rodzin izrael
[table “7” not found /]

Translation:
List of married and unmarried Jewish families
[table “9” not found /]

For further details on these records: Brzozow PSA B1885-1907 Marriages/Lwow Wojewodztwa / Rzeszow Province (records in Fond 16 in Sanok Archive) (see www.jri-poland.org)