Lukow from Siedlce Gubernia

Lukow - once a vibrant Jewish town in vicinity of Siedlce 

Today's population is just above 30,000 [1].
Lukow population just before WWII was 6,000 Jews [2][3] out of about 15,000 [4].  
This accounts for 40% of total population. 
Twenty year earlier (census 1921), the Jewish population reached 50% [5].
Holocaust survivors counts 150 people [6].
Virtually no Jews remained today in Lukow and around [6].  

An honor guard of Jewish former residents of Lukow, Poland, flanking a box containing the remains of Jews from the town who were killed in the Holocaust

Source: http://www.infocenters.co.il/gfh/notebook_ext.asp?book=66474&lang=eng

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Hand picked below are two interesting sources of genealogical information; coming from Poland (naturally) and Russia (surprisingly).  



The Polish website based on the book Żydzi Łukowa i okolic 
(The Jews of Łuków and its Vicinity) by Krzysztof Czubaszek (Warsaw 2008). 

https://sites.google.com/site/jewishlukow/english

This site provides some other Polish links related to the subject under:

https://sites.google.com/site/jewishlukow/varia 

Likever genealogy from Russia (Moscow) by Dmitry Belanovsky

Link: Jewish Lukow - Likever

Jewish Lukow

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References:
[1] "Łuków [ˈwukuf] is a city in eastern Poland with 30,727 inhabitants as of January 1, 2005."
" In the Second Polish Republic, ... Jews made about 50% of the population."
Source: Łuków - Wikipedia, the free encyclopedia
  
[2] "In August 1939, its Jewish population stood around 6,ooo."  
Source: The United States Holocaust Memorial Museum Encyclopedia page 678


[3] "About 6,000 Jews lived in Lukow at the outbreak of World War II." 
Source: http://www.jewishvirtuallibrary.org/jsource/judaica/ejud_0002_0013_0_12854.html


[4] "1912 Jewish population was 7,985. 1939 total town population [not just Jews] was 14,865." 
Source: http://www.iajgsjewishcemeteryproject.org/poland/lukow.html


[5] "In 1921 6145 Jews lived in Łuków, which accounted for about 50% of the town inhabitants."
Source: https://sites.google.com/site/jewishlukow/english


[6] "Holokaust przeżyło ok. 150 osób".
"Dziś nie ma już Żydów w Łukowie i okolicach."
Source: http://www.zydzi.lukow.pl/ Tab: Kksiążka