[or-roots] A couple of census questions

[LinLouVan at aol.com]

In the 1910 Census, there is a column for "Naturalized or Alien", but I  
have a case that clearly uses "Pa". Does anyone know what that meant in  1910?
 
In the 1930 Census, there is a column near the right hand side, "for  
official use only". Does anyone have an explanation for the codes there, i.e.,  
VVVV or VIVV?
 
Linda VanOrden
Junction City, OR 
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