Hi,
  It is important to remember that an important part of most farms until
recently was the woodlot.   An 80 acre farm, for example, might have
had 50 or 60 acres under cultivation or in pasture.  The rest would have
been woodlot.
   This was the source of fuel for heating and cooking as well as  a
source
of timber for barn and fence construction.  So, in an area with 1,000,000
acres
of farms, not all of this was devoid of what we might call forest.
Although
there was extensive reforestation of some areas during the 30s,  it was
the
stands of woodlot trees which provided the seeds for the return of the
original mixed-species woods.

  Homer