MC
Mary Campbell — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Talladega-County, Alabama
Our Model Tree links this Mary Campbell across the 1920, 1930 and 1940 US Censuses in Talladega-County, Alabama (XGBoost, ~Confirmed) — first a head (b.~1899), then head of a 5-person household.
Age 41
b. ~1899
Female
Head
Born: Georgia
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Talladega-County, Alabama |
| Surname | Campbell |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 41 |
| Marital Status | Widowed |
| Birthplace | Georgia |
| 1935 Residence (City) | E. P. Beat 11 |
| 1935 Residence (County) | Talladega |
| Additional Details | |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | Georgia |
| Birth Country | United States |
| Birthplace (normalized) | georgia |
| Township / Ward | E P Beat 11 |
| Est. Birth Year | ~1899 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Pauline Campbell | Daughter | — | 15 | ~1925 |
| Mildred Campbell | Daughter | — | 10 | ~1930 |
| Mary Campbell | Head | — | 41 | ~1899 |
| Edward Campbell | Son | — | 19 | ~1921 |
| Keller Campbell | Son | — | 21 | ~1919 |
Census Appearances
1920
Talladega, Alabama
Spouse, age 23
Talladega, Alabama · implied b. ~1897 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Married |
| Birthplace | Georgia |
| Father's Birthplace | Georgia |
| Mother's Birthplace | Georgia |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Georgia |
| Birth Country | United States |
| Birthplace (normalized) | georgia |
1930
Talladega, Alabama
Spouse, age 32
Talladega, Alabama · implied b. ~1898 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Georgia |
| Age at First Marriage | 20 |
| Father's Birthplace | Georgia |
| Mother's Birthplace | Georgia |
| Can Read/Write | Yes |
| Birth State | Georgia |
| Birth Country | United States |
| Birthplace (normalized) | georgia |
1940
Talladega-County, Alabama
Head, age 41
Talladega-County, Alabama · implied b. ~1899 — 5 household members
| Surname | Campbell |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 41 |
| Marital Status | Widowed |
| Birthplace | Georgia |
| 1935 Residence (City) | E. P. Beat 11 |
| 1935 Residence (County) | Talladega |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | Georgia |
| Birth Country | United States |
| Birthplace (normalized) | georgia |
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 Campbell across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Campbell
Head · 1940 · age 41 · b. ~1899 · Alabama
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Talladega-County, Alabama
Open full size
1940 US Federal Census — Talladega-County, Alabama
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00082-00216)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Agnes Smith | 23 | Lodger | — | Alabama |
| 42 | Jesse Robertson | 21 | Head | Farmer | Alabama |
| 43 | Lillie Robertson | 67 | Mother | — | Alabama |
| 44 | Mary Campbell THIS PERSON | 41 | Head | — | Georgia |
| 45 | Keller Campbell | 21 | Son | Clerk | Alabama |
| 46 | Edward Campbell | 19 | Son | Chainman | Alabama |
| 47 | Pauline Campbell | 15 | Daughter | — | Alabama |
| 48 | Mildred Campbell | 10 | Daughter | — | Alabama |
| 49 | June Morris | 25 | Head | Laborer | Alabama |
| 50 | Josie Morris | 20 | Wife | — | Alabama |
| 51 | Estelle Morris | 29 | Sister | — | Alabama |
| 52 | Maybelle Morris | 28 | Sister | Housekeeper | Alabama |
| 53 | Almon Morris | 20 | Sister | Housekeeper | Alabama |
| 54 | Kelley Jr. Williams | 4 | Nephew | — | Alabama |
| 55 | Annie Mae Williams | 2 | Niece | — | Alabama |
| 56 | Willie James Williams | 1 | Nephew | — | Alabama |
| 57 | Lottis D. Coburn | 54 | Head | Laborer | Alabama |
| 58 | Celia Coburn | 45 | Wife | — | Alabama |
| 59 | Hezekia Coburn | 31 | Son | Laborer | Alabama |
| 60 | Elizabeth Coburn | 20 | Daughter | — | Alabama |
| 61 | Parker Coburn | 16 | Son | — | Alabama |
| 62 | Paul Coburn | 12 | Son | — | Alabama |
| 63 | Lilla Mae Coburn | 8 | Daughter | — | Alabama |
| 64 | Pearlie Mae Mcneal | 4 | Granddaughter | — | Alabama |
| 65 | Roy Duffy | 28 | Head | Presser | Alabama |
| 66 | Willie Mae Duffy | 36 | Wife | Laundress | Alabama |
| 67 | Ella Duffy | 65 | Mother | — | North Carolina |
| 68 | Buford Pearson | 13 | Nephew | — | Alabama |
| 69 | John Speer | 55 | Head | Laborer | Alabama |
| 70 | Annie Speer | 41 | Wife | — | Alabama |
| 71 | Richard Speer | 26 | Son | Delivery Man | Alabama |
| 72 | Claud Speer | 24 | Son | Chicken Picker | Alabama |
| 73 | Frazier Speer | 20 | Son | Chicken Picker | Alabama |
| 74 | Mary Francis Speer | 19 | Daughter | Cook | Alabama |
| 75 | Annie S. Speer | 17 | Daughter | — | Alabama |
| 76 | Lula Mae Speer | 15 | Daughter | — | Alabama |
| 77 | Margeritte Speer | 13 | Daughter | — | Alabama |
| 78 | Jesse Mae Speer | 9 | Daughter | — | Alabama |
| 79 | Namoi Welch | 40 | Head | — | Alabama |
| 80 | Cliff Averate | 25 | Cousin | Sweeper | Alabama |
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)