Nah, no relation to Gen Trudeau that I know of. His people were originally from the same area of France as mine were, but his rels remained loyal to the "True Church," while mine went off half-cocked in the Calvinist/Protestant direction. That being said, I think my rels were run out of the country before his were, so we own the higher moral ground from having been here before them recent Trudeau arrivals.
My only connection to the general is the fact that a Vermont yankee that my g-g-gf Peter Washburn served with at Big Bethel, one Capt. Mahlon Young (1842-64), 7th Vt Inf., appears to have captured Trudeau at Washington, LA in Oct 1863 while on a recon patrol out of Ft. Barrancas (Pensacola). Capt. Young is the subject of a very interesting episode in the OR called the "Spanish Consulate" incident. He seems to have had a penchant for capturing Reb officers. Check it out. It's "vewwy, vewwy scwewwy," as Elmer Fudd might have said. I owe that extremely humorous observation to Alan Pitts a few years ago.
But you are right, Cump, Trudeau busted his sacred oath and went back to the fight, at least in the capacity of gathering intelligence on the state of Union troop dispositions in Mississippi, which he reported personally to Jefferson Davis (little politicking there, eh?). Peter Trudeau, a New York rel, was kind enough to send me a pdf of James deBerty Trudeau's signed letter of parole, which he clearly violated as subsequent events proved.
And yes, Garry Trudeau of "Doonesbury" infame, is I think the great grandson of the general.