Potter's Field... Definition ..... More & Again

This is the image accompanying the Wikipedia explanation of the term "Potter's Field." And here is the definition: 

1. A potter's field, paupers' grave or common grave is a term for a place for the burial of unknown or indigent people. The U.S. expression potter's field derives from the Bible, referring to a field used for the extraction of potter's clay; such land, useless for agriculture, could be used as a burial site.

 Once again I read Matthew 27:7-10 where the chief priests took the money Judas had remorsefully cast back at them and "bought the potter's field to bury strangers in."  

I did a brief post on this same topic back on 25 Mar 2011.   A comment posted to that blog entry was most helpful:  

TmasonSeptember 10, 2011 at 1:43 AM

As far as I understand, a potters field was a field that was not good for agricultural or even developmental purposes. The potter would use it to dispose of broken, unfixable pottery. The land was purchased with the money because it could not be put into the treasury, but notice, once it became a burial ground, the Bible no longer refers to it as the "potters field" but as the "field of blood"

1. Bottom line, seems to me that this term has no origins to the surname Potter. Would you agree??