André Godefroy Lionel Hanguillart

Little biographical information about this author is readily documented in the sources I could confirm, but his published work places him as a captain in the French Army during the First World War. He is known for Petit guide pratique de guerre pour ma compagnie, a field-written manual that was later translated into English as Handy War Guide for My Company.

The book was presented as having been written at the front and based on the training orders he prepared for his own company, which gives it an unusually immediate, practical tone. Contemporary editions and library records describe it as a handbook for officers and company commanders, focused on trench warfare, field organization, and day-to-day military instruction.

Because reliable personal details beyond the book and rank are scarce in the sources I found, the work itself remains the clearest window into his life: a concise wartime manual shaped by direct service and intended to help others lead under combat conditions.