| Name | Boats | Last known start |
|---|---|---|
| J. I. Hamilton | ||
| J. J. Mitchell | ||
| J. Jewell | ||
| J. L. Rolland | ||
| J. M. Brumpton | ||
| J. M. Evans | ||
| J. Margary | ||
| J. Needham | As a helmsman in 1966 in the World Championship on 0 | |
| J. P. Meehan | ||
| J. Philips | ||
| J. Platt | ||
| J. Pound | As a helmsman in 1966 in the World Championship on 0 | |
| J. S. Langdon | ||
| J. Sherren | ||
| J. Stallwood | ||
| J. Starling | ||
| J. Tiilikka | ||
| J. Tompson | ||
| J. Verco | As a helmsman in 1966 in the World Championship on 0 | |
| J. Voysey |