Abe was a excellent Surveyor as well as I think other than George Washington our greatest President.
This is an excellent article on his Surveying days.
http://www.webmazine.org/issues/bull236 ... incoln.pdf
This below we still use today although its not common to describe a new parcel of ground from the center section as it wasn't a original Government Land Corner set by the original surveyors.
Lincoln was asked to be an arbitrator
several times. Sometimes, it required a lot
of patience. When, in a boundary dispute,
he was asked, “Where is the Center of the
Section”? He responded: “It’s where it has
always been.”
Asked by the court to render a legal
opinion on the location of the Center of the
Section January 1859, Lincoln stated: “I
think the true rule for dividing into Quarters
any interior Section, or Sections which
is not fractional, is to run straight lines
through the Section from the opposite
quarter section corners, fixing the point
where such straight lines or intersect each
other as the middle or center of the Section”
That opinion still holds true today for
land surveyors in writing legal descriptions
based on the Center of the Section
of land.