Mary, a very interesting and informative post. I too am interested in the Guterrez/Magee Expedition, a filibuster, of 1812/'13. My GGG grandfather, Zachariah MARTIN [b. Sep 1790 at Natchitoches Post, LA], was a participant but he, fortunately, abandoned the cause after the atrocities at San Antonio and straggled back to Natchitoches.
There are many unanswered questions and intrigues surrounding the involvement of the U. S. Gov't. i.e. Lt. Augustus Magee's resignation from the U. S. Army to lead the expedition. Was it a sanctioned act? And then there is the roll of Gen. James Wilkinson, Commander of U. S. forces in Louisiana and, for over twenty years, an agent of the Spanish Government. It is alledged that Wilkinson was keeping track of the expedition and reporting regularly to the Spanish. He had done that earlier with the Lewis and Clark Expedition when he was Military Governor at St. Louis. Compared to Wilkinson, Benedict Arnold was an upright guy.
The next time you are in the area be sure to visit the Alamo library. They have a fairly extensive file on the Gutierrez/ Magee Expedition.
Turning to Peter SIDES/SEITZ, I have just begun delving into the family around Baton Rouge, LA and could use help sorting them out. First puzzle, identifying the father of Margaret SIDES who married William BRITT on 6 Oct 1836 in Franklin Co., MS and lived in East Baton Rouge Par., LA in the period 1840s to '80s. Thanks, Bob