From the Wikipedia page 
Kew railway station (London) was opened by the North and South Western Junction Railway in 1853 in Brentford in west London on the western curve of the Kew triangle. It closed in 1866 after the railway had in 1862 opened its Kew Bridge platforms (closed since 1940) on the eastern curve and which were connected to the LSWR Kew Bridge station, itself on the southern chord. Although Kew and Kew Bridge are applied to structures on the north bank of the Thames Kew does not extend across the river.  (which is in Russian) has a photograph of "Old Kew Station" and a location overlaid on a modern map.