http://en.wikipedia.org/wiki/Arabia_(steamboat) Wikipedia article, which also mentions the still edible canned foods found aboard. She sank in 1856, 9 years previous to the sinking of the Bertrand. She was discovered 20 years later than the Bertrand, making her canned goods both earlier as far as processing; and older in terms of span between canning and discovery & testing...and tasting.
http://www.1856.com/ “Treasures of the Steamboat Arabia” Fascinating place to wander through.
She also had bolts of silk, which were preserved in good condition, once cleaned by the archaeologists.
Come to think of it, maybe GGG should hear about this, too.
This thread may be right interesting to you, bert.