D.D. Balam thought he found 4789 Sprattia in 1987 but it was already named by Christopher E. Spratt.
It was discovered on 20 October 1987, by Canadian astronomer David Balam at the Climenhaga Observatory (657) in Victoria, Canada. David D. Balam /belm/ is a Canadian astronomer and a research associate with University of Victoria's Department of Physics and Astronomy, in Victoria, British Columbia. 
Christopher E. Spratt
(Canadian astronomer) 
