Martyn Williams is one of the founders of ACMOC Chapter II the UK Caterpillar Owners group.
He has collected a few machines which he takes to local shows in Wales.
- Caterpillar D2 1936 s/n 3J506
- Caterpillar D4 1942 with Blade (undergoing restoration Jan 2009)
- International B100 with 4in 1 bucket
- Fordson Major
- Aveling Barford GA Roller
- ACMOC Chapter II for details of club
- List of Collections more collections and museums featuring plant and tractors etc
- Shows and Meets for details of events