East Carroll Parish has been a part of many other parishes:
(1) Part of the District of New Orleans from 1722 to 1805;
(2) In the county of Ouachita in 1805;
(3) Part of Concordia in 1809;
(4) Briefly part of Warren in 1815;
(5) On March 14, 1832 the new parish of Carroll was formed from the eastern part of Ouachita and the northern part of Concordia and remained until 1877.
(6) In 1877, it was divided by the Macon River, into East & West Carroll Parishes.
There was also a lot of travel all over this area by steamboats. Residents of Issaquena County, from just across the Mississippi River, and many people from Chicot County, which is just across the Arkansas state line, visited here and many had relatives that lived in Carroll Parish, and visited them often. Lake Providence had lots of folk up from New Orleans (also known as the Crescent City).
So, I have included here some of these parishes census records because even if the boundaries were changed these folks were living in the same area but are recorded in the other parishes at that time.
1810 Census of Concordia Parish, Louisiana
1820 Census of Concordia Parish, La.
1830 Census of Concordia Parish, La.
1840 Census of Concordia Parish, Louisiana
1850 Census of Concordia Parish, Louisiana
1860 Census of Concordia Parish, La.
1810 Census of Ouachita Parish, La.
1820 Census of Ouachita Parish, La.
1830 Census of Ouachita Parish, La.
1810 Census of Chicot County, Arkansas:
1830 Census of Chicot County, Arkansas
1840 Census of Chicot County, Arkansas
1850 Issaquena County, Mississippi