The Miriam Weiner Routes to Roots Foundation created an online database which contains the listing of archival holdings from Eastern Europe.
Here you can see the search results for Mezhyrichi
As you can see, only some Census and a few Historical documents are preserved.
No Metrical records (births, marriages, divorces and deaths) of the past for Mezhyrichi exist.
The Census documents in the search results list are actually the Revision Lists, and the explanation you can find here.
All archival documents for Mezhyrichi can be found in two archives in Ukraine and one in Jerusalem.
1. The State Archive of Rovno Oblast in Rovno - ГАРО
2. The State Archive of Zhytomir Oblast in Zhytomir - ГАЖО
3. The Central Archives for the History of the Jewish People in Jerusalem - CAHJP
The Central Archives for the History of the Jewish People (CAHJP) were established in 1939.
They hold the archives of hundreds of Jewish communities, as well as of local, national and international Jewish organizations and the private collections of many outstanding Jewish personalities.
The Archives now hold the most extensive collection of documents, pinkassim (registers) and other records of Jewish history from the Middle Ages to the present day.
There are few copies of the Revision Lists for Mezhirichi from the State Archive of Rovno Oblast in CAHJP, as well as some historical documents regarding Jewish live in Mezhyrichi.
Census (Revision Lists)
|Type of documents||Period||ГАРО||ГАЖО||CAHJP|
|Revision List and additions #7||1816-1828||27/3/17||HM2.9057|
|Revision list #9||1850-1852||27/3/57||HM2.9955.3|
|Revision List #10||1858-1874||27/3/81||HM2.9950.1|
|Addition to Revision List #10||1858-1882||27/3/82||HM2.9950.2|
|Addition to Revision List #10||1865||118/14/79|
|Addition to Revision List #10||1874||118/14/247|
The list of documents in archives will be provided later.
ГАРО - The State Archive of Rovno Oblast in Rovno
ГАЖО - The State Archive of Zhytomir Oblast in Zhytomir
CAHJP - The Central Archives for the History of the Jewish People in Jerusalem