He discovered the tomb of early American diplomat William Tudor there, and was popular in the Brazilian press. Returning from Brazil at age 63, he spent six years teaching at Haverford College, Georgetown University and Ursinus College. At Ursinus he taught political science and helped obtain the Huntington Wilson Papers. In retirement he taught at a Unitarian Sunday school, preached, and was unofficially involved with the Williams Foundation, an organization dedicated to interchange between the U.S. and Argentina. Chandler died in Ridley Park, Pennsylvania, on June 29, 1962. His wife donated his papers to the University of North Carolina at Chapel Hill. "Almost everything he wrote or spoke about seemed to show, in some way, that peoples of the Western Hemisphere and get along together under certain circumstances," Chandler's biographer Sheldon Avenius wrote. While Chandler was honored in South America, and witnessed an actual improvement in inter-American relations, the United States had little interest in Chandler's advocacy based on shared cultural values—leading Avenius to conclude that Chandler "remains today a splendid example of the forgotten man".