Career
As a young man, Richardson was employed by Charles B. Cory to collect bird specimens in the West Indies. While collecting specimens in Mexico, Richardson married the Mexican citizen Rosaura Ojeda.. he was part of the expedition to Nicaragua in 1908 and another to Ecuador in 1912.
In fact, he collected in Nicaragua many times.
In 1891 he settled in Matagalpa, Nicaragua, to grow coffee, and stayed on for the rest of his life. He took part in the Roosevelt-Rondon scientific expedition to Brazil of 1913–1914, and on another expedition to Ecuador in 1916 he collected for the American Museum of Natural History and the Academy of Sciences of Natural Sciences of Philadelphia.
In southwestern Colombia from November 1910 to July 1911 and from August 1912 to October 1912, Richardson collected many mammalian specimens. Microhydromys richardsoni – Northern groove-toothed shrew mouse (or Richardson"s shrew mouse)
Rattus richardsoni – Glacier rat (or Richardson"s mountain rat).
