Did you know you have a Coat of Arms?
http://www.houseofnames.com/xq/asp.c/qx/lormand-coat-arms.htm
I have tried tracing my family roots, and did not come up with the info from the link you sent. It does sound plausible though. The problem is that lots of Cajuns who upon arrival to South Louisiana changed their names. We think Lormand was derived from another name, perhaps Armand as suggested in the link.
Thanks pal, you provide more than just a thread for us.