Hello: On my grandfather's WW1 attestation paper for previous military experience it states; 5 years 10th Battery Canadian Field Artillrery 2 years 67th Regiment Sussex Company. One suggestion is that the latter part refers to the 67th Regiment Carleton Light Infantry and hence the RNBR. This would cover the period between 1907-1914. Is this a valid supposition, and if so , are there any surviving records to access? Thankyou, Hercules.