Tonie Holt is a known author in the field of Military history and literature. His knowledge of World War One is extensive, having spent over twenty years researching and leading tours to the battlefields. He co- founded the highly successful Major & Mrs Holt's Battlefield Tour Company. Valmai Holt is a well known author in the field of Military history and literature. Her knowledge of World War One is extensive, having spent over twenty years researching and leading tours to the battlefields. She co-founded the highly successful Major & Mrs Holt's Battlefield Tour Company.