William Henry Jonas
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| AUS-ch | 04/??/1926 | 0 |  Australia |
| AUS-ch | 04/??/1922 | 0 | Australia |
| Australia | ??/??/1899 | 0 | Australia |
William Henry Jonas Repertoire with White pieces (most played)
| ECO | Opening | Games |
| C22 | Centre game | 2 games |
| A17 | English opening | 1 games |
| C43 | Petrov, modern (Steinitz) attack | 1 games |
| C24 | Bishop's opening, Berlin defence | 1 games |
William Henry Jonas Repertoire with Black pieces (most played)
| ECO | Opening | Games |
| C64 | Ruy Lopez, classical (Cordel) defence | 1 games |
| C44 | King's pawn game | 1 games |
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