MC
Mary Carroll — 1940 US Census Record
Model Tree available1940 United States Federal Census · Barbour-County, Alabama
Our Model Tree links this Mary Carroll across the 1920, 1930 and 1940 US Censuses in Barbour-County, Alabama (XGBoost, ~Confirmed), with identified parents William & Annie — first a daughter (b.~1919), then head of a 6-person household.
Age 21
b. ~1919
Female
Daughter
Born: Alabama
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Barbour-County, Alabama |
| Surname | Carroll |
| Given Name | Mary Ellen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Alabama |
| 1935 Residence (City) | Prec. 10, Cops Mill |
| 1935 Residence (County) | Barbour |
| Additional Details | |
| Occupation | Housekeeper |
| Industry | Private Home |
| Class of Worker | NP |
| Hours Worked | 48 |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same House |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
| Occupation | Housekeeper |
| Township / Ward | Prec 10 Cops Mill |
| Est. Birth Year | ~1919 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Carroll | Daughter | — | 21 | ~1919 |
| Sadie Carroll | Daughter | — | 23 | ~1917 |
| Willie Carroll | Head | — | 70 | ~1870 |
| William Carroll | Son | — | 17 | ~1923 |
| Bennett Carroll | Son | — | 15 | ~1925 |
| Annie Carroll | Spouse | — | 57 | ~1883 |
Census Appearances
1920
Barbour, Alabama
Daughter, age
Barbour, Alabama · implied b. ~1920 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carroll |
| Given Name | Mary Ellen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Alabama |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1930
Barbour, Alabama
Daughter, age 11
Barbour, Alabama · implied b. ~1919 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carroll |
| Given Name | Mary Ellen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Alabama |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Can Read/Write | Yes |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1940
Barbour-County, Alabama
Daughter, age 21
Barbour-County, Alabama · implied b. ~1919 — 6 household members
| Surname | Carroll |
| Given Name | Mary Ellen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Alabama |
| 1935 Residence (City) | Prec. 10, Cops Mill |
| 1935 Residence (County) | Barbour |
| Occupation | Housekeeper |
| Industry | Private Home |
| Class of Worker | NP |
| Hours Worked | 48 |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same House |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links Mary Carroll across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father William Carroll (~0.92 confidence) and mother Annie Carroll (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Carroll
b. ~1870
Source father
● Household
· direct · ~0.92
Mother
Annie Carroll
b. ~1883
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Carroll
Daughter · 1940 · age 21 · b. ~1919 · Alabama
★ You are viewing this record
Sibling
William Carroll
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Sadie Carroll
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bennett Carroll
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Barbour-County, Alabama
Open full size
1940 US Federal Census — Barbour-County, Alabama
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00003-00620)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Katrine Hartzer | 14 | Daughter | — | Alabama |
| 42 | Janet Hartzer | 11 | Daughter | — | Alabama |
| 43 | Willie M. Carroll | 70 | Head | Farmer | Alabama |
| 44 | Annie Carroll | 57 | Wife | Housewife | Alabama |
| 45 | Sadie Frances Carroll | 23 | Daughter | Housekeeper | Alabama |
| 46 | Mary Ellen Carroll THIS PERSON | 21 | Daughter | Housekeeper | Alabama |
| 47 | William Stephen Carroll | 17 | Son | C. C. C. | Alabama |
| 48 | Bennett Carroll | 15 | Son | — | Alabama |
| 49 | E. Matthew Carroll | 29 | Head | Farmer | Alabama |
| 50 | Eunice Clenny Carroll | 26 | Wife | Housewife | Alabama |
| 51 | Jerome T. Carroll | 1 | Son | — | Alabama |
| 52 | Rima E. Carroll | 0 | Daughter | — | Alabama |
| 53 | Sanford W. Carroll | 24 | Head | Farmer | Alabama |
| 54 | Bama Barber | 58 | Aunt | Housekeeper | Alabama |
| 55 | George Bush | 39 | Head | Farmer | Alabama |
| 56 | Alice Bush | 25 | Wife | Housewife | Alabama |
| 57 | Charles Edward Bush | 8 | Son | — | Alabama |
| 58 | James Berry Bush | 3 | Son | — | Alabama |
| 59 | Charlie Floyd Flynn | 35 | Head | Farmer | Alabama |
| 60 | Essie Viola Flynn | 33 | Wife | Housewife | Alabama |
| 61 | Etta Frances Flynn | 14 | Daughter | — | Alabama |
| 62 | Maudie Maybelle Flynn | 12 | Daughter | — | Alabama |
| 63 | Ruby Estelle Flynn | 8 | Daughter | — | Alabama |
| 64 | Jenna Fay Flynn | 4 | Daughter | — | Alabama |
| 65 | Jennie Flynn | 64 | Mother | — | Alabama |
| 66 | Fletcher Leatherwood | 21 | Boarder | Farmer | Alabama |
| 67 | Jessie Jack Cardell | 35 | Head | P. W. A. | Alabama |
| 68 | Lizzie Mae Cardell | 30 | Wife | Housewife | Alabama |
| 69 | Infant Cardell | 0 | Daughter | — | Alabama |
| 70 | L. Dewey Price | 25 | Head | Farmer | Alabama |
| 71 | Frances Price | 22 | Wife | Housewife | Alabama |
| 72 | Rex Price | 3 | Son | — | Alabama |
| 73 | Haywood Bagley | 25 | Head | Farmer | Alabama |
| 74 | Lillian Bagley | 24 | Wife | Housewife | Alabama |
| 75 | Haywood Allen Bagley | 3 | Son | — | Alabama |
| 76 | J. P. Sr. Mcclure | 46 | Head | Farmer | Alabama |
| 77 | Addie Lou Mcclure | 40 | Wife | Housewife | Alabama |
| 78 | J. P. Jr. Mcclure | 20 | Son | Assistant Farmer | Alabama |
| 79 | Addie Lou Mcclure | 18 | Daughter | — | Alabama |
| 80 | Paul Mcclure | 16 | Son | Assistant Farmer | Alabama |
Related Census Records
Pedigree Summary
Mary + 3 siblings
Gen 1 · 2 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)