In 1893 he began work at the Walter Rothschild's Museum at Tring, specialising in Coleoptera, Lepidoptera and Siphonaptera.
Lionel Walter Rothschild, 2nd Baron Rothschild (1868–1937), the eldest son of Nathan Rothschild, 1st Baron Rothschild
Nyceryx continua cratera Rothschild & Jordan, 1916 (Peru, Bolivia, Argentina and Brazil)
Walter Scott | Sir Walter Scott | Rothschild family | Walter Cronkite | Walter Raleigh | Walter Benjamin | Walter Mondale | Rothschild | Walter Matthau | Walter Gropius | Walter Hamma | Walter Savage Landor | Walter Burley Griffin | Walter Payton | Walter | Bruno Walter | Walter Winchell | Walter Crane | Walter Rilla | Walter Koenig | Walter Brennan | Walter Sickert | Walter Pidgeon | Walter Isaacson | Walter Damrosch | Walter Crickmer | Walter Brueggemann | Walter Reed | Walter Browne | Little Walter |
His collections were acquired by the Natural History Museum in part directly and also through the collections of Allan Octavian Hume, Lord Rothschild and others.
allotei was described by Rothschild in 1914 as a species, despite the assertion by its discoverer, Abbé Allotte, a priest at the Buin Mission, Bougainville Island, that it was a natural hybrid.
The species was named by Walter Rothschild in 1907, in honour of Alexandra of Denmark.
In 1917, the British Foreign Secretary Arthur James Balfour communicated the Balfour Declaration to the leader of United Kingdom's Jewish community Lord Rothschild for transmission to the Zionist Federation.
Jordan published over 400 papers, many jointly with Charles and Walter Rothschild and described 2,575 new species himself, with an additional 851 in collaboration with the Rothschilds.
Natural History Museum at Tring, formerly the Walter Rothschild Zoological Museum now part of the Natural History Museum.