Greeting all, I am looking into a Canadian soldier, 252905 William Killham, born and bred in Hull and emigrated to Canada worked as a farmer and later then enlisted in the CEF. William survived the war however on the front of his attestation papers [Canadian Overseas Expeditionary Force] it states: 'Discharged on 9/3/18 in accordance with [unreadable] dated 31/10/1917 having been placed in Category C III as a result of wounds' This is signed: '[Unreadable] Lt OC No 2 Casualty Unit.' My questions to the group are: 1] May I assume that Canadian and British forces had different medical categories?. My understanding of [British] categories is: C = Fit for home service only and C III = On sedentary works as clerks, storeman, batman cooks etc. But William as [Canadian] C III is discharged. 2] Is there was a difference between British and Canadian medical categories what were the differences. 3] I know its a very long shot but anyone hazard a guess as to what "Unreadable dated 31/10/1917" might be. I know there was ACI 1606 of 17 October 1917 that recalculated some of the [British] medical categories. Regards to all, Peter Fellowes