Disassembling moving and reassembling stone walls

[VisualThinker7@zzzzzzz]

My favorite line in the whole article is:

<   "It's a historic wall of some kind," said Adrian Benepe,  commissioner of
the Department of Parks and Recreation.   >

In that PBS series on the history of New York City by Ken Burns, there was  a
quote from a 19th century writer:  'the adult visiting his childhood  home in
New York City would be hard pressed to find even one building remaining  from
that earlier time, so fast is the pace change in the place'.

I wonder if the construcion methods can be traced to a particular  region of
the old world, the way cottages and elements of language in Maine can  be
traced directly to Cornwall, UK.