In 1912, while he was still working on his dissertation, Bryn Mawr College appointed him head of its history department and in 1913, he married Helen Louise Garnsey,[2] with whom he later had two sons, Philip and Peter.
In 1935, he organized the Bureau of Economic Research at Harvard and, in the same year, served as a delegate to the Second General Assembly of the Pan American Institute for Geography and History.
Such a tool was particularly important in the pre-digital age before the development of electronic library catalogs, with area contributing editors selecting publications for inclusion, along with short summaries.
"[9] Appointed professor emeritus at Harvard, the United States Naval War College invited him to take up its chair in maritime history for the academic year 1953-54.
"The large number of experts whom [Dr. Haring] trained in his more than forty years as a teacher...bears witness to the importance of his work and the scope of his beneficent influence.
Affiliated with half a score scholarly institutions in the Latin American world, and decorated by several of our sister republics, he enjoys a reputation that transcends the boundaries of our country.
"[12] In an obituary in the Hispanic American Historical Review by one of his former students, he was praised for "his complete integrity, ready charm, and first-rate mind [that] made him an outstanding personality among the Latin Americanists of his day, as well as a chief supporter of high standards of scholarship in this new guild.