The engineer Frederick Law died at the age of 81. Here is all you want to know, and more!
Biography - A Short Wiki
Landscape designer of Central Park and many other well-known U.S. parks.
He married his brother’s widow, Mary Cleveland Perkins, who gave birth to Frederick Law Olmsted Jr. on July 24, 1870.
Quotes
"With regard to the moral and religious condition of the slaves, I cannot, either from what I observe, or from what is told me, consider it in any way gratifying.
"The possession of arbitrary power has always, the world over, tended irresistibly to destroy humane sensibility, magnanimity, and truth.
"This is just what I have thought when I have seen slaves at work – they seem to go through the motions of labor without putting strength into them. They keep their powers in reserve for their own use at night, perhaps.