MH
Mary Hamilton — 1940 US Census Record
Model Tree available1940 United States Federal Census · Lauderdale-County, Alabama
Our Model Tree links this Mary Hamilton across the 1920, 1930 and 1940 US Censuses in Lauderdale-County, Alabama (XGBoost, ~Confirmed), with identified parents Russell & Emmett — first a daughter (b.~1919), then head of a 11-person household.
Age 21
b. ~1919
Female
Daughter
Born: Alabama
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Lauderdale-County, Alabama |
| Surname | Hamilton |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Alabama |
| 1935 Residence (City) | Precinct 2 |
| 1935 Residence (County) | Lauderdale |
| Additional Details | |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
| Township / Ward | Precinct 2 |
| 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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Dorothy Hamilton | Daughter | — | 19 | ~1921 |
| Martha Hamilton | Daughter | — | 13 | ~1927 |
| Mary Hamilton | Daughter | — | 21 | ~1919 |
| Ruth Hamilton | Daughter | — | 7 | ~1933 |
| Francis Hamilton | Daughter | — | 11 | ~1929 |
| Emmett Hamilton | Head | — | 42 | ~1898 |
| Maurice Hamilton | Son | — | ~1940 | |
| James Hamilton | Son | — | 17 | ~1923 |
| John Hamilton | Son | — | 4 | ~1936 |
| Charles Hamilton | Son | — | 15 | ~1925 |
| Rose Hamilton | Spouse | — | 37 | ~1903 |
Census Appearances
1920
Lauderdale, Alabama
Daughter, age 1
Lauderdale, Alabama · implied b. ~1919 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hamilton |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Alabama |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1930
Lauderdale, Alabama
Daughter, age 11
Lauderdale, Alabama · implied b. ~1919 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hamilton |
| Given Name | Mary |
| 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
Lauderdale-County, Alabama
Daughter, age 21
Lauderdale-County, Alabama · implied b. ~1919 — 11 household members
| Surname | Hamilton |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Alabama |
| 1935 Residence (City) | Precinct 2 |
| 1935 Residence (County) | Lauderdale |
| Highest Grade | Hs 4 |
| 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 Hamilton across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Russell Hamilton (~0.92 confidence) and father Emmett Hamilton (~0.92 confidence) and father James Hamilton (~0.92 confidence) and mother Rose Hamilton (~0.92 confidence) and mother Rose Hamilton (~0.92 confidence) and mother Iona Hamilton (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Russell Hamilton
b. ~1894
Source father
● Household
· direct · ~0.92
Father
Emmett Hamilton
b. ~1898
Source father
● Household
· direct · ~0.92
Father
James Hamilton
b. ~1900
Source father
● Household
· direct · ~0.92
Mother
Rose Hamilton
b. ~1901
Source mother
● Household
· direct · ~0.92
Mother
Rose Hamilton
b. ~1903
Source mother
● Household
· direct · ~0.92
Mother
Iona Hamilton
b. ~1905
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Hamilton
Daughter · 1940 · age 21 · b. ~1919 · Alabama
★ You are viewing this record
Sibling
John Hamilton
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Hamilton
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Hamilton
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Hamilton
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Francis Hamilton
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Martha Hamilton
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Maurice Hamilton
Sibling · 1940 · age
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Hamilton
Sibling · 1940 · age 19
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 — Lauderdale-County, Alabama
Open full size
1940 US Federal Census — Lauderdale-County, Alabama
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00049-00127)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | George Jones | 24 | Head | Farm Labor | Mississippi |
| 42 | Ophelia Jones | 25 | Wife | — | Alabama |
| 43 | Joe Slauers | 84 | Head | — | Alabama |
| 44 | Minnie C. Slauers | 64 | Wife | — | Tennessee |
| 45 | Tom Simmons | 67 | Lodger | Cook | Alabama |
| 46 | Johnathan Cunningham | 64 | Head | Farmer | Alabama |
| 47 | Jim Cunningham | 40 | Son | Farmer | Alabama |
| 48 | Emmett Hamilton | 42 | Head | Farmer | Alabama |
| 49 | Rose Hamilton | 37 | Wife | — | Alabama |
| 50 | Mary Hamilton THIS PERSON | 21 | Daughter | — | Alabama |
| 51 | Dorothy Hamilton | 19 | Daughter | Office Clerk | Alabama |
| 52 | James A. Hamilton | 17 | Son | Labor | Alabama |
| 53 | Charles Hamilton | 15 | Son | — | Alabama |
| 54 | Martha Nell Hamilton | 13 | Daughter | — | Alabama |
| 55 | Francis Hamilton | 11 | Daughter | — | Alabama |
| 56 | Ruth Hamilton | 7 | Daughter | — | Alabama |
| 57 | John Hamilton | 4 | Son | — | Alabama |
| 58 | Maurice Hamilton | 0 | Son | — | Alabama |
| 59 | Tallie Perry | 32 | Head | Labor | Alabama |
| 60 | Doris L. Perry | 22 | Wife | — | Alabama |
| 61 | James R. Perry | 10 | Son | — | Alabama |
| 62 | Roy E. Perry | 8 | Son | — | Alabama |
| 63 | Kenneth Perry | 7 | Son | — | Alabama |
| 64 | Herman Perry | 4 | Son | — | Alabama |
| 65 | Billie R. Perry | 2 | Son | — | Alabama |
| 66 | Tom Belingfield | 44 | Head | Rollerman | Alabama |
| 67 | Lorna Belingfield | 35 | Wife | — | Alabama |
| 68 | Dorothy L. Belingfield | 14 | Daughter | — | Alabama |
| 69 | Tommy Jr. Belingfield | 11 | Daughter | — | Alabama |
| 70 | Bobbie M. Belingfield | 9 | Son | — | Alabama |
| 71 | Bettie June Belingfield | 4 | Daughter | — | Alabama |
| 72 | Augustus Lawson | 75 | Head | Farmer | Georgia |
| 73 | Dora Lawson | 71 | Wife | — | Georgia |
| 74 | Milton Green | 24 | Hired Hand | Farm Labor | Alabama |
| 75 | Dave Shoulders | 50 | Head | Farm Labor | Alabama |
| 76 | Martha Shoulders | 39 | Wife | — | Alabama |
| 77 | Lora Mae Shoulders | 12 | Daughter | — | Alabama |
| 78 | David Jr. Shoulders | 10 | Son | — | Alabama |
| 79 | Jimmie Shoulders | 5 | Son | — | Alabama |
| 80 | Frankie L. Shoulders | 2 | Daughter | — | Alabama |
Pedigree Summary
Mary + 8 siblings
Gen 1 · 6 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)