The knapsack was used for their belongings. The 1808 pattern of black leather with white strap. White with white frog attachment and black bayonet scabbard. Cross belts were white buff, and there is no evidence that black belts were used by Marines during the War of 1812. No cross-belt plate of the period has been found to date.
Research indicates it was one piece, brass, with eagle upon it.
The buckle may have had an anchor also in order to indicate sea service. However, none has been found. Bush cross belt plate is a two piece plate from a period before 1812. Marines had switched to a one-piece plate by 1812. There is only one documentation for canteens for Marine use.