Ilvirovo-Olkhovka — folwark in Vetrinskij rajon Polock okrug BSSR.
Information presented on the Radzima.net: 
Catholic parish to which the folwark Ilvirovo-Olkhovka belonged at the beginning of the 20th century;
metrical books of the Catholic parish on births, marriages and deaths (with indication of years, fund, inventory and archive where parish registers kept);
Administrative affiliation of the folwark Ilvirovo-Olkhovka
— the administrative-territorial units to which the settlement belonged in different historical periods:— Russian Empire (1870-1910s), — BSSR (1924-1926), Catholic parish to which the folwark Ilvirovo-Olkhovka belonged at the beginning of the 20th century;
metrical books of the Catholic parish on births, marriages and deaths (with indication of years, fund, inventory and archive where parish registers kept);
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