I'm very glad to hear from you and that this information was useful to you! I remember very well this research, I might have gone a little overboard but you know how it is, when you're on a roll...
Anyway, if you plan to visiting this summer, you'll do well to check any place you intend to go to beforehand to be sure they'll be open (most are closed in August). Don't hesitate to contact or visit the association if you can, I'm sure they'll try to help you if possible.
Also, I've checked the Gironde Archives website again and good news, they've put the passports records (1800-1889) on-line! As surmised, the DUTRUCH family is amongst them, for the year 1861 (October 2), but the destination is Vitoria (Spain). No idea why they would go there first.
Here's the direct link: http://gael.gironde.fr/ead.html?id=FRAD033_IR_4M_745_757&...
> Passports for abroad • 4 M 745-757
>> july-december 1861 • 4 M 746
>>> Jean Dutruch passport • 4 M 746/526
In case the link doesn't work, I've uploaded the picture here: http://www.mediafire.com/view/?dc11kksuspl1y12
Content (many words abbreviated):
PASSPORT FOR ABROAD
Register - No.1014
Mr. DUTRUCH Jean, cooper
his wife born GUIMBELLOT Marie, 3 children: Jean 13 years old, Raymond 12, Jean 7 years old
native of St Loubès
living in St Loubès
going to Vitoria, Spain
aged 47 years old, height 1m62
hair: brown - forehead: oval
eyebrow: brown - eyes: russet?
nose: long - mouth: average
beard: ? - chin: round
face: oval - coloring: light
DISTINCTIVE SIGNS: none
FILED PIECES: ???
Done in Bordeaux, on October 2, 1861
Let me know if you need further help.