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Mary May — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Jefferson-County, Alabama
Our Model Tree links this Mary May across the 1920, 1930 and 1940 US Censuses in Jefferson-County, Alabama (XGBoost, ~Confirmed) — first a spouse (b.~1885), then head of a 4-person household.
Age 55
b. ~1885
Female
Spouse
Born: Alabama
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Jefferson-County, Alabama |
| Surname | May |
| Given Name | Mary S. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Alabama |
| 1935 Residence (City) | Birmingham City |
| 1935 Residence (County) | Jefferson |
| Additional Details | |
| Occupation | manager |
| Industry | beauty shop |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 100 |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
| Occupation | Manager |
| Township / Ward | Birmingham City |
| Est. Birth Year | ~1885 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Gwendolin Stanley | Daughter | — | 16 | ~1924 |
| Elizabeth Stanley | Daughter | — | 20 | ~1920 |
| John May | Head | — | 56 | ~1884 |
| Mary May | Spouse | — | 55 | ~1885 |
Census Appearances
1920
Jefferson, Alabama
Spouse, age 34
Jefferson, Alabama · implied b. ~1886 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | May |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Alabama |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Occupation | Clerk |
| Industry | Mill |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1930
Jefferson, Alabama
Spouse, age 44
Jefferson, Alabama · implied b. ~1886 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | May |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Alabama |
| Age at First Marriage | 21 |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Can Read/Write | Yes |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1940
Jefferson-County, Alabama
Spouse, age 55
Jefferson-County, Alabama · implied b. ~1885 — 4 household members
| Surname | May |
| Given Name | Mary S. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Alabama |
| 1935 Residence (City) | Birmingham City |
| 1935 Residence (County) | Jefferson |
| Occupation | manager |
| Industry | beauty shop |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 100 |
| Highest Grade | No 8 |
| 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 May 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 May
Spouse · 1940 · age 55 · b. ~1885 · Alabama
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Jefferson-County, Alabama
Open full size
1940 US Federal Census — Jefferson-County, Alabama
Page Contents
32 people indexed on this census page (nara:1940:m-t0627-00098-00189)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Henry Henderson | 33 | Head | Crane Operator | Kentucky |
| 2 | Lillie Brown | 40 | Lodger | House Maid | Alabama |
| 3 | Sam Lee | 15 | Son | — | Alabama |
| 7 | William J. Flynn | 29 | Head | Sheet Mill Worker | Alabama |
| 8 | Mary C. Flynn | 26 | Wife | — | Alabama |
| 9 | William J. Jr. Flynn | 5 | Son | — | Alabama |
| 11 | Carl Olander | 15 | Son | — | Alabama |
| 13 | John M. Williams | 26 | Head | Core Maker | Alabama |
| 14 | Frieda Williams | 30 | Wife | Trained Nurse | Minnesota |
| 15 | Edward C. Stephens | 22 | Head | Rigger | Alabama |
| 16 | Cora Lee Stephens | 22 | Wife | — | Georgia |
| 17 | Patricia A. Stephens | 0 | Daughter | — | Alabama |
| 19 | John W. May | 56 | Head | Office Supervisor | Alabama |
| 20 | Mary S. May THIS PERSON | 55 | Wife | Manager | Alabama |
| 21 | Gwendolin Stanley | 16 | Daughter | Typist | Alabama |
| 22 | Elizabeth B. Stanley | 20 | Daughter | Typist | Alabama |
| 24 | Wilson F. Ryan | 26 | Head | Conveyorman | Kentucky |
| 25 | Elaine F. Ryan | 24 | Wife | Saleslady | Alabama |
| 26 | C. P. Chambers | 46 | Head | Auto Driver | Georgia |
| 27 | Molly Chambers | 41 | Wife | Saleslady | Alabama |
| 28 | Rosa Lee Owens | 56 | Head | Helper | Alabama |
| 29 | Henrietta Taylor | 36 | Head | Housework | Alabama |
| 30 | Charles C. Dunn | 38 | Head | Clerical | Alabama |
| 31 | Rhela Lee Dunn | 31 | Wife | — | Alabama |
| 32 | Charles C. Jr. Dunn | 4 | Son | — | Alabama |
| 33 | John E. Dunn | 1 | Son | — | Alabama |
| 35 | Clarence H. Buchanan | 24 | Head | Electrician | Alabama |
| 36 | Elaine C. Buchanan | 23 | Wife | — | Alabama |
| 37 | Robert E. Buchanan | 2 | Son | — | Alabama |
| 38 | J. Larry Buchanan | 12 | Son | — | Alabama |
| 39 | Phillip W. Tucker | 6 | Son | — | Alabama |
| 40 | Charles E. Crow | 32 | Head | Assistant Property Clerk | 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)