| Company | Timeline | Status | |
| Mallinckrodt Chemical Holdings (U.K.) Limited Director • Assistant General Counsel | 24 Jan 1992←8 Months→16 Oct 1992 | Active | |
| Mallinckrodt Chemical Limited Director • Assistant General Counsel | 4 Jan 1992←5 Months→15 Jun 1992 | Active | |
| Mallinckrodt Chemical Limited Director • Unreported | 1 Jan 1970←22 Years→15 Jun 1992 | Active | |
