From LDraw.org Wiki
He died on 1997-07-25, aged 26, due to influenza.
James Jessiman Memorial Award
The James Jessiman Memorial Award was established by his family to honour individuals who have contributed to the furthering of LDraw, the DAT format, and James' memory.
- Just James: A recollection of his life by his parents on LDraw.org
- James Jessiman's LDraw page (via the Internet Archive)