 Dr. Douglas also endowed a lectureship at the University of Arizona, Tucson, and in 1940 Phelps Dodge Corporation funded the construction of the James Douglas Memorial Building for Mines and Metallurgy at the University of Arizona.In 2018, the City Council of Nacozari de García, Mexico, honored Dr. Douglas by enacting an ordinance designating the Municipal Auditorium to be known as "James Douglas".This resolution was adopted as a posthumous tribute in memory of Dr. James Douglas on the 100th anniversary of his death.