[Ger-Poland-Volhynia] Surname Fritz-Wojcechowo/Weizekow Poland?

[Ednadill at aol.com]

Hello,
    Is someone familiar with either Wojcechowo or Weizekow Poland?  
Wojcechowo was given as a place of residence on my ggrandmother's ship 
manifest-1914.  Spelling probably isn't right.  The villiage of Weizekow was 
given as her birthplace on my ggrandfather's naturalization papers-1929.  The 
surname in question would be "Fritz".  Her parents names were Kristar "Fritz" 
and Juliana "Baeher" taken from her marriage certificate-1917.  Also I found 
a Hulda Fritz which I believe to be her sister, listed a place called 
Laszewo,Plock where her parents resided.  Both women listed Kristar Fritz as 
their father.  Thanks in advance.
Regards,
Erik Dill