| Ratings 
 
 
  | Year | Rank | Edo | Dev. | Games |  
  | 1902 | 577 | 2075 | (89) | 2 |  
  | 1903 | 595 | 2067 | (82) | 0 |  
  | 1904 | 632 | 2058 | (73) | 13 |  
 
Rating table notes
 | 
| Biographical data |  | 
   | Name: Wickersham, E.R. |  
   | Born: |  
   | Died: |  |  |  
   | Notes: |  
   | I am guessing that the 'E.R. Wickersham' of Kansas City, Missouri, who played in Saint Louis in 1904, was 'E.R. Wickersham', who played in Los Angeles in 1902. |  |  |  |  
   | References |  | 
| Books |  
   | Di Felice, Chess Results, 1901-1920, page 44 |  
   | Gaige, Chess Tournament Crosstables II, page 211 |  
   | Hilbert, Emil Kemeny, page 284 |  | Periodicals |  
   | [LAH], vol. 29, no. 174, 24 Mar. 1902, page 4 |  
   | [LAH], vol. 29, no. 278, 7 July 1902, page 4 |  |  |