Photograph of a low stone wall on farmland in Derry, N.H., once owned by poet Robert Frost. Some believe this area inspired Frost to write his poem “Mending Wall.” Source: AP, May 29, 2011. Courtesy NBC Learn K-12. | NEH-Edsitement

Photograph of a low stone wall on farmland in Derry, N.H

Photograph of a low stone wall on farmland in Derry, N.H., once owned by poet Robert Frost. Some believe this area inspired Frost to write his poem “Mending Wall.” Source: AP, May 29, 2011. Courtesy NBC Learn K-12.