Name
- Leplur, —, military engineer1
- Longmore, John, Ensign1
- Loxley, Benjamin, surveyor1
- Ludwig Ernst, Prince of Brunswick-Wolfenbüttel, 3rd son of Duke Ferdinand Albrecht II1
- M., W1
- Madge, John, military draughtsman1
- Maisey, F C1
- Maitland, Frederick, Major-General Hon. son of General Hon Alexander Maitland Baronet1
- Massey, F C, Captain1
- Massy, —, Lieutenant-Colonel 46th Regt1
- Matthias, G, draughtsman1
- McCrealock, W M, Assistant Quartermaster General1
- Mentin, —1
- Merckens, F, T. or military draughtsman1
- Meybaum, F G de, military engineer1
- Miller, Francis, Lieutenant military surveyor1
- Milton, Thomas, publisher1
- Mitchell, George, Deputy Surveyor of Woods1
- Moll, J C, Lieutenant1
- Monckton, Robert, 1st Viscount Galway, Lieutenant-General 2nd son of John1