I have not been successful in locating a GenForum for the COUPEE family surname, however there are family forums for Coupe; Couper; Cooper; Coop; Cope; Copp. It would be very interesting to see if/how these surnames might connect to a common origin.
A History of Pointe Coupee Parish by Brian J. Costello, (c) 1999 pertains to the Pointe Coupée Parish which commands a strategic location on the west bank of the Mississippi River in east-central Louisiana, upriver from Baton Rouge, and near the apex of the state's geographical and cultural French "Triangle."
The parish is surrounded by major rivers on three sides, boasts two of the Mississippi's oxbow lakes, and is covered by a network of smaller streams. The Mississippi River figured prominently in Pointe Coupée's early history and continues to define much of the parish's character.
Whether the name Pointe Coupee (French for "cut point") stemmed from the act of Iberville's portage or that the Mississippi's gradual adoption of the portage as its main channel has long been debated.
It would be very interesting to find a study of this particular surname.
I had also always understood the name associated with French background.
=========== My interest in this surname: - Malcijah Benjamin (Kige) HIGHSMITH, son of Teresa (Williams) HIGHSMITH and Samuel HIGHSMITH, Capt., was born 17 May 1827 in Old Caney, Bazoria Co., Texas, and died 4 May 1893 in Bastrop, Texas. He married Evaline COUPEE 1851 in Bastrop Co., Texas.
Of His Expedition For The Exploration Of A Route To Presidio Del Rio Grande And Paso Del Norte.
By Col. P. Hansbrough Bell, Com'd'g Frontier, dated San Antonio, Dec. 15, 1848
Mentions: 2d Lieut. Williams * Dr. Barton * John Conner * Col. J. C. Hays * San Carlos * Fort Leaton * Brady's Creek * Llano Station * Paso del Norte * Col. Bell * Gen. Edward Burileson * Mrs. S. C. Downing of Hutto, Texas * Rev. John McCullough * Mr. Fish * Mrs. Mary A. Maverick * Capt. Albert Highsmith * Col. Milam * Col. P. H. Bell * P. M. Hamer * Santa Rosa Hospital * Mrs. Albert Maverick of Sunshine Ranch, San Antonio * Miss Evaline Coupee * Sarah Jane, married John Tomlinson * Amanda Louisa. married John H Armstrong * Sarah A. McCutcheon * Edwin Highsmith * Lelia A. Dabney * Mrs. Terressa Highsmith *
-- Alternate spelling: Evalline Coupee
There is a reference to a Gen. Cooper in this Frontier Times Edition, but have no clue if there is a connection to Evaline Coupee.