Hi Mike -
below is an URL that will link you to the Morningside Notes article which contains the image of Gen. Trudeau. It is mislabeled as Col. John Griffith (my gg-uncle), but is a dead ringer for the image in Bruce Allardice's book,
"More Generals in Gray".
How it ended up in Junction, Kimble County, Texas is unclear; suspect it may have been given to Col. John Griffith, perhaps by Trudeau himself, while Griffith was in the Port Hudson area, but who knows???
Bruce, wanna comment????
y.v.o.s.,
Ken