Sharon,

The earliest record I found an Valentin/Valentine BARRE' was a 1910 US Census Record, showing him as age 11, residing in Avoyelles Parish, Louisiana, residing with the Julian Guillory family. Edouard BARRE' resides nearby.

I have not yet found Valentin/Valentine BARRE' on the 1910 US Census. I also tried searching BARRIE/BARRI/BARRY). I did find him in Orange, Texas in 1920 and 1930 U.S. Census Records. Those census records are posted at the bottom of this message.

I do not have access to Avoyelles Parish Sources, which is where you would probably best look to get further information Valentin/Valentine BARRE's line.

I may more information on the family of Doris/Dores GUIDRY, wife of Valentin/Valentine BARRE':

According to the 1930 US Census record, Valentin BARRE' was married to Doris J. GUIDRY. The 1920 US Census record shows the Gerome "Jerome" GUIDRY and Marie Ovilia LEGER family residing next to the Valentin BARRE/ DORIS GUIDRY family.

The 1900 US Census records show that Jerome GUIDRY and Ovilia LEGER have a daughter named Doris born Feb. 1892.
According to Southwest Louisiana Records, by Rev. Donald J. Hebert, Josephine GUIDRY, born 12 Feb. 1892, a daughter of Jerome GUIDRY and "Onilia" LEGER, was baptized in Carencro, Louisiana.

If Doris J. is Doris Josephine, daughter of Gerome "Jerome GUIDRY" and Marie OVILIA LEGER, then the following information is about her family and ancestors.

Gerome "Jerome" GUIDRY was a son of Dorneville Olivier GUIDRY and Adelaide Irma CORMIER.

Marie Ovilia LEGER, was a daughter of M. Constant LEGER and his first wife, Estelle "Fanny" BABINEAUX. M. Constant LEGER married 4 times. At one time he was married to Irma GUIDRY, sister of Jerome GUIDRY.

M. Constant LEGER was a son of Hypolite Paul LEGER and Marcelite HEBERT/LEBERT

Estelle "Fanny" BABINEAUX was a daughter of Onesime BABINEAUX and Julienne BENOIT.

[NOTE: Onesime BABINEAUX married twice. His 2nd wife was Amelie/Emelie LANDRY. Onesime BABINEAUX and Amelie/Emelie LANDRY were my 3rd great grandparents]

Dorneville Olivier GUIDRY was a son of Charles GUIDRY and Marie BERNARD.

Adelaide Irma CORMIER was a daughter of Hypolite CORMIER and Adelaide RICHARD.

SOURCE: Southwest Louisiana Records by Rev. Donald J. Hebert

Census Data:

1880 US CENSUS
Ward 1, Lafayette Parish, Louisiana
21 June 1880
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DWELLING 324/FAMILY 344
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GUIDRY, Jarhome [Jerome], w, m, 22, married, farmer, La., La., La.
GUIDRY, Aviler [Ovilia], w, f, 16, wife, married, keeping house, La., La., La.
GUIDRY, Alieda, w, f, 58, mother, widow, assist in house, La., La., La.
BERBENAUX [BABINEAUX], O., w, m, 16, orphan, single, farmer, La., La., La. [Perhaps Onezime BABINEAUX, Jr].
GUIDRY, Edar, w, f, 17[Josephine Ida GUIDRY], daughter [sister], single, cook, La., La., La.

1900 US CENSUS
Precinct 1, Ward 2, Avoyelles Parish, Louisiana
June 20, 1900
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DWELLING 468/FAMILY 468
--------------------------
BARRE, Edouard, head, m, w, june 1864, 35, married 10 years, Louisiana, Louisiana, Louisiana, farmer
BARRE, Eliza, wife, w, f, Mar. 1877, 23, married 10 years, 3 children, 3 living, Louisiana, Louisiana, Louisiana
BARRE, Aubertin, son, w, m, Dec. 1891, 8, single, Louisiana, Louisiana, Louisiana
BARRE, Jules, son, w, m, Mar. 1895, 5 single, Louisiana, Louisiana, Louisiana
BARRE, Dawson, son, w, m, Dec. 1898, 1, single, Louisiana, Louisiana, Louisiana
--------------------------
DWELLING 469/FAMILY 469
--------------------------
GUILLORY, Julian J., head, w, m, Mar. 1841, 59, married 35 years, Louisiana, Louisiana, Louisiana, farmer
GUILLORY, Elizabeth, wife, w, m [sic], July 1845, 54, married 35 years, 10 children, 6 living, Louisiana, Louisiana, Louisiana
GUILLORY, Florence, daughter, w, f, May 1880, 20, single, Louisiana, Louisiana, Louisiana
BARRE', Valentin, boarder, m, w, Apr. 1889, 11, single, Louisiana, Louisiana, Louisiana, farm laborer

1900 US CENSUS
Ward 1, Lafayette Parish, Louisiana
June 3, 1900
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DWELLNG 345/FAMILY 347
-------------------------------
GUIDRY, Gerome, head, w, m, Apr. 1858, 42, married 20 years, Louisiana, Louisiana, Louisiana, farmer
GUIDRY, Ovilia, wife, w, f, May 1878 [23 Feb. 1865], 32, married 20 years, 8 children, 7 living, Louisiana, Louisiana, Louisiana
GUIDRY, Villere', son, w, m, Dec. 1880, 19, Single, Louisiana, Louisiana, Louisiana, farmer
GUIDRY, Alozia, daughter, w, f, Jan 1884, 16, Single, Louisiana, Louisiana, Louisiana
GUIDRY, Odile, daughter, w, f, Jan 1886, 14, Single, Louisiana, Louisiana, Louisiana
GUIDRY, Alexis, son, w, m, Mar. 1888, 12, Single, Louisiana, Louisiana, Louisiana, at school
GUIDRY, Doris, daughter, w, f, Feb. 1892, 8, Single, Louisiana, Louisiana, Louisiana
GUIDRY, Cles, son, w, m, Nov. 1895, 4, Single, Louisiana, Louisiana, Louisiana
GUIDRY, Isaac, son, w, m, Jan 1898, 2, Single, Louisiana, Louisiana, Louisiana
LEGER, Alexandre, nephew, w, m, feb. 1883, 17, Single, Louisiana, Louisiana, Louisiana, farmer

1910 US CENSUS
Police Jury Ward 1, Lafayette Parish, Louisiana
May 17, 1910
----------------------------
DWELLING 446/FAMILY 448
----------------------------
GUIDRY, Girome [Jerome], head, m, w, 52, married one for 29 years, Louisiana, Louisiana, Louisiana, farmer
GUIDRY, Ovillia [LEGER], wife, f, w, 45, married once for 29 years, 9 children, 7 living, Louisiana, Louisiana, Louisiana, none
GUIDRY, Odile, daughter, f, w, 24, single, Louisiana, Louisiana, Louisiana, none
GUIDRY, Doris [Doris Josephine GUIDRY], daughter, f, w, 18, single, Louisiana, Louisiana, Louisiana, none
GUIDRY, Cles [Pierre Clesse Constant GUIDRY], son, m, w, 14, single, Louisiana, Louisiana, Louisiana, none
GUIDRY, Isaac, son, m, w, 12, single, Louisiana, Louisiana, Louisiana, none
BOURQUE, Dornville, boarder, m, w, 27, widow, Louisiana, Louisiana, Louisiana, farmer, on the farm
PREJEAN, Willie, boarder, m, w, 18, single, Louisiana, Louisiana, Louisiana, in partnership with D.B.

1920 US CENSUS
Justice Precinct 1, Orange City, Orange County, Texas
--------------------------
705 Market Street, Orange, Texas
DWELLING 114/FAMILY 129
--------------------------
BARRE, Valentine, head, m, w, 32, married, Louisiana, Louisiana, Louisiana, ho--er, shipyard
BARRE, Doris [GUIDRY], wife, f, w, 25, Married, Louisiana, Louisiana, Louisiana, none
BARRE, Agnes, daughter, f, w, 7, single, Texas, Louisiana, Louisiana, none
BARRE, Lester, son, m, w, 5, single, Texas, Louisiana, Louisiana, none
BARRE, Ray, son, m, w, 3, single, Texas, Louisiana, Louisiana, none
BARRE, Daisy Mary, daughter, f, w, 0 months, single, Texas, Louisiana, Louisiana, none
--------------------------
707 Market Street, Orange City, Texas
DWELLING 115/FAMILY 130
--------------------------
GUIDRY, Jerome, head, m, w 66, married, Louisiana, Louisiana, Louisiana, watchman, paper mill
GUIDRY, ------, wife, f, w, 56, married, Louisiana, Louisiana, Louisiana, none
-------------------------
DWELLING 115/FAMILY 131
-------------------------
GUIDRY, Isaac, head, m, w, 21, married, Louisiana, Louisiana, Louisiana, ---- worker, paper mill
GUIDRY, Edna, wife, f, w, 20, married, Louisiana, Louisiana, Louisiana, none
GUIDRY, Johnny, son, m, w, 5 months, single, Texas, Louisiana, Louisiana, none

1930 US Census
Ward 3, Orange City, Orange County, Texas
April 19, 1930
--------------------------
705 Market Street, Orange, Texas
DWELLING 302/FAMILY 332
--------------------------
BARRE, Valentin, head, m, w, 44, married at age 21, Louisiana, Louisiana, Louisiana, tug boat engineer, towing company
BARRE, Doris J. [Doris Josephine GUIDRY], wife, f, w, 38, marrried at age 19, Louisiana, Louisiana, Louisiana, none
BARRE, Agnes, daughter, f, w, 18, single, Texas, Louisiana, Louisiana, none
BARRE, Lester, son,m, w, 16, single, Texas, Louisiana, Louisiana, none
BARRE, Ray, son, m, w, 13, single, Texas, Louisiana, Louisiana, none
BARRE, Daisy M., daughter, f, w, 11, single, Texas, Louisiana, Louisiana, none
BARRE, Albert, son, m, w, 6, single, Texas, Louisiana, Louisiana, none

CENSUS SOURCE: HeritageQuest Online

One other possibility:

On the 1860 US CENSUS, Valery [Valeri] GUIDRY, residing with parents, Alexis Onesime "A. O." GUIDRY and Palmire DUPRE', resided next to the family of Jerome GUIDRY (son of Dorneville Olivier "Olivier D." GUIDRY and Irma CORMIER. That Valeri/Valery GUIDRY married Julie GUIDRY and they had a child born in 1898 named Heloise GUIDRY.

SOUTHWEST LOUISIANA RECORDS by Rev. Donald J. Hebert shows:

GUIDRY, Valeri Cyprien, son of Alexis Onesime GUIDRY and Palmire DUPRE was born 5 Aug 1856 (Grand Coteau Ch.: v. 2, page 137).

GUIDRY, Valeri (son of O. A. GUIDRY and Palmire DUPRE') married Julie GUIDRY (daughter of Charles GUIDRY and Clementine GUILBEAUX) 25 Nov 1879 (Grand Coteau Ch: v. 4, page 69).

GUIDRY, Heloise (Valery GUIDRY and Julie GUIDRY) born 6 Jan 1898 (Carencro Ch.: v.3, p. 310).

Other children included:
Christophe GUIDRY born 12 May 1891
Mercedes GUIDRY born 3 Mar 1896
Edmond D. GUIDRY born 6 Sept. 1882
Gilbert GUIDRY born 11 May 1884. He died 14 Sept 1885.
Joseph C. GUIDRY born 19 July 1886

1900 US CENSUS
Ward 6 [Carencro area], Lafayette Parish, Louisiana
June 7, 1900
-------------------------------
DWELLING 129/FAMILY 129
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GUIDRY, Valery C., head, w, m, Aug. 1856, 43, married 2 years, Louisiana, Louisiana, Louisiana, farmer
GUIDRY, Julie, wife, w, f, Sept. 1868, 36, married 20 years, 9 children, 7 living, Louisiana, Louisiana, Louisiana
GUIDRY, Alexis,son, w, m, Spet. 1880, 19, single, Louisiana, Louisiana, Louisiana, farm laborer
GUIDRY, Edmond, son, w, m, sept 1882, 17, single, Louisiana, Louisiana, Louisiana, farm laborer
GUIDRY, Joseph, son, w, m, July 1887, 14, single, Louisiana, Louisiana, Louisiana, farm laborer
GUIDRY, Christopher, son, w, m, Aug. 1890, 10, single, Louisiana, Louisiana, Louisiana
GUIDRY, Isibella, daughter, w, f, Sept. 1887, 12, single, Louisiana, Louisiana, Louisiana
GUIDRY, Pamela, daughter, w, f, Mar. 1895, 5, single, Louisiana, Louisiana, Louisiana
GUIDRY, Eloise [Heloise], daughter, w, f, Aug. 1897, 2, single, Louisiana, Louisiana, Louisiana

Using HeritageQuest Online, which indexes only the head of household for the 1910 U. S. Census, I have not yet found this family on the 1910 US Census.

I hope this helps you with your research.