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Mary Mack — 1940 US Census Record
Model Tree available1940 United States Federal Census · Tallapoosa-County, Alabama
Our Model Tree links this Mary Mack across the 1920, 1930 and 1940 US Censuses in Tallapoosa-County, Alabama (XGBoost, ~Confirmed), with identified parents Columbus & Ida — first a daughter (b.~1920), then head of a 7-person household.
Age 20
b. ~1920
Female
Daughter
Born: Alabama
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Tallapoosa-County, Alabama |
| Surname | Mack |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Alabama |
| 1935 Residence (City) | Eufala Precinct |
| 1935 Residence (County) | Tallapoosa |
| Additional Details | |
| Occupation | Housework |
| Industry | Private Home |
| Class of Worker | OA |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
| Occupation | Housework |
| Township / Ward | Eufala Precinct |
| Est. Birth Year | ~1920 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Hoyt Mack | Son | — | 2 | ~1938 |
| Earnest Mack | Son | — | 16 | ~1924 |
| Mary Mack | Daughter | — | 20 | ~1920 |
| Fletcher Mack | Son | — | 23 | ~1917 |
| William Mack | Son | — | 18 | ~1922 |
| Ethel Mack | Spouse | — | 44 | ~1896 |
| Fred Mack | Head | — | 52 | ~1888 |
Census Appearances
1920
Russell, Alabama
Daughter, age 1
Russell, Alabama · implied b. ~1919 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mack |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Alabama |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Mother Tongue | English |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1930
Russell, Alabama
Daughter, age 10
Russell, Alabama · implied b. ~1920 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mack |
| Given Name | Mary L. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Alabama |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Can Read/Write | No |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1940
Tallapoosa-County, Alabama
Daughter, age 20
Tallapoosa-County, Alabama · implied b. ~1920 — 7 household members
| Surname | Mack |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Alabama |
| 1935 Residence (City) | Eufala Precinct |
| 1935 Residence (County) | Tallapoosa |
| Occupation | Housework |
| Industry | Private Home |
| Class of Worker | OA |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| 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 Mack across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Columbus Mack (~0.92 confidence) and mother Ida Mack (~0.92 confidence) and mother Caroline Mack (~0.92 confidence) and father Fred Mack (~0.92 confidence) and mother Ethel Mack (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Columbus Mack
b. ~1870
Source father
● Household
· direct · ~0.92
Mother
Ida Mack
b. ~1876
Source mother
● Household
· direct · ~0.92
Mother
Caroline Mack
b. ~1888
Source mother
● Household
· direct · ~0.92
Father
Fred Mack
b. ~1888
Source father
● Household
· direct · ~0.92
Mother
Ethel Mack
b. ~1896
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Mack
Daughter · 1940 · age 20 · b. ~1920 · Alabama
★ You are viewing this record
Sibling
Hoyt Mack
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Mack
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Earnest Mack
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Fletcher Mack
Sibling · 1940 · age 23
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 — Tallapoosa-County, Alabama
Open full size
1940 US Federal Census — Tallapoosa-County, Alabama
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-00083-00572)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Edward Cooky | 26 | Head | Sawmill | Alabama |
| 2 | Margaret Cooky | 20 | Wife | Housekeeper | Alabama |
| 3 | Jack Byron Cooky | 1 | Son | — | Alabama |
| 4 | Fred Mack | 52 | Head | Farmer | Alabama |
| 5 | Ethel Mack | 44 | Wife | Housekeeper | Alabama |
| 6 | Fletcher Mack | 23 | Son | Farm Hand | Alabama |
| 7 | Mary Mack THIS PERSON | 20 | Daughter | Housework | Alabama |
| 8 | William T. Mack | 18 | Son | Farm Hand | Alabama |
| 9 | Earnest Mack | 16 | Son | Farm Hand | Alabama |
| 10 | Hoyt Mack | 2 | Son | — | Alabama |
| 11 | Rosie Ward | 54 | Head | Housekeeper | Alabama |
| 12 | Owen Ward | 23 | Son | Laborer | Alabama |
| 13 | Joe Ward | 19 | Son | Laborer | Alabama |
| 14 | Jack Ward | 12 | Son | Laborer | Alabama |
| 15 | Daniel Smith | 72 | Uncle | — | Alabama |
| 16 | L. M. Mack | 59 | Head | Farmer | Alabama |
| 17 | Mary Magdalene Mack | 53 | Wife | Housewife | Alabama |
| 18 | Myrtice Mack | 18 | Daughter | Homework | Alabama |
| 19 | Betty Jean Mack | 9 | Daughter | — | Alabama |
| 20 | Chesley P. Mack | 55 | Head | Farmer | Alabama |
| 21 | Hattie Mack | 53 | Wife | Housewife | Mississippi |
| 22 | Daisy Mack | 24 | Daughter | Homework | Alabama |
| 23 | Mary Isom | 46 | Head | Housework | Alabama |
| 24 | Tanza Isom | 15 | Daughter | Housework | Alabama |
| 25 | Fairly Isom | 11 | Daughter | — | Alabama |
| 26 | Cecil Jr. Isom | 7 | Grandson | — | Alabama |
| 27 | Horner Smith | 47 | Head | Farmer | Alabama |
| 28 | Annie Smith | 40 | Wife | Housewife | Alabama |
| 29 | Dallas Smith | 22 | Son | Laborer | Alabama |
| 30 | Charles E. Smith | 12 | Son | Laborer | Alabama |
| 31 | Max Smith | 14 | Son | Laborer | Alabama |
| 32 | Frank Smith | 7 | Son | — | Alabama |
| 33 | Thelma Smith | 3 | Daughter | — | Alabama |
| 34 | Hiliard J. Hartley | 42 | Head | Laborer | Alabama |
| 35 | Barbara Hartley | 72 | Mother | — | Alabama |
| 36 | Docie Smith | 37 | Sister | Housekeeper | Alabama |
| 37 | Clara Lee Smith | 11 | Niece | — | Alabama |
| 38 | Clyde E. Nelson | 22 | Head | Laborer | Alabama |
| 39 | Genevieve Nelson | 18 | Wife | Housewife | Alabama |
Pedigree Summary
Mary + 4 siblings
Gen 1 · 5 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)