found: Work cat.: Bureau of Indian Affairs records, Pine Ridge agency ration tickets, 1880-1909(ration tickets for hardtack)
found: OED(hard-tack; ship biscuit; ordinary sea fare in general)
found: Web. 3(hardtack; a hard biscuit or loaf bread made of flour and water without salt and baked in large or small forms; called also pilot bread, ship biscuit)
found: Wikipedia WWW site, Apr. 10, 2007(hardtack; simple type of cracker or biscuit made from flour, water and salt; also called ship biscuit, sea biscuit, pilot bread or sea bread; inexpensive and long-lasting food eaten during long sea voyages and military campaigns)
