Robert, just a possibility. If you know your local Firearms Enquiry Officer he may be able to check the National Firearms Database for you. He should be able to furnish you with the information, at least about how many Hodges guns exsist in legal ownership in the U.K., and in what guages. This would not compromise the Data Protection Act. He would of course be unable to tell you who owns them. This was done for me about Derbyshire made guns in the county of Derbyshire where I live with no problem at all. Only the county based data was available at that stage. Worth asking and they should be able to give serial numbers too. Lagopus.....
