[Ger-Poland-Volhynia] Engelbrecht's & Wittmann's from Zyrardow, Russia-Poland

[Douglas Di Paola]

Hello, my name is Douglas Di Paola and I have been doing research on my 
maternal side of the family.  All of my great grandparents (and 
grandparents) were from Zyrardow, Russia-Poland.  They were German and 
Lutheran.  My great grandparent's names are: Leopold Engelbrecht (married 
Emma Ortlieb), and Julius Wittmann (married Emma Mathilde Lohrke).  All of 
them were born between 1870 and 1880 in Zyrardow.  I have been trying to 
obtain their birth records for some time, without success.  I have pursued 
death records for some of them as they ended their lives in what is now 
Germany.  Unfortunately, death records are not a reliable as birth records.  
A few of my great uncles came to America in the early 1900's and I am 
investigating those records.  What I have now and know is all from my 
grandparents who came to the United States around 1956.  Does anyone have 
advise or experience with records from Zyrardow?  Or is there any connection 
to the names I have listed.  Regards.