| Ratings 
 
 
  | Year | Rank | Edo | Dev. | Games |  
  | 1884 | 1038 | 1639 | (74) | 16 |  
  | 1885 | 930 | 1635 | (84) | 0 |  
  | 1886 | 941 | 1630 | (93) | 0 |  
  | 1887 | 870 | 1626 | (100) | 0 |  
  | 1888 | 886 | 1622 | (107) | 1 |  
 
Rating table notes
 | 
| Biographical data |  | 
   | Name: Davidson, D.A. |  
   | Born: |  
   | Died: |  |  |  |  
   | References |  | 
| Books |  
   | Edgar, Liverpool Chess Club, page 47 |  
   | Forster, Amos Burn, page 958 |  |  |