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William Hamilton — 1940 US Census Record
Model Tree available1940 United States Federal Census · Jefferson-County, Alabama
Our Model Tree links this William Hamilton across the 1900, 1910, 1920, 1930 and 1940 US Censuses in Jefferson-County, Alabama (XGBoost, ~Confirmed), with identified parents Martin & Ed — first a head (b.~1891), then head of a 3-person household.
Age 49
b. ~1891
Male
Head
Born: Alabama
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Jefferson-County, Alabama |
| Surname | Hamilton |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Alabama |
| 1935 Residence (City) | Harden Dale |
| 1935 Residence (County) | Jefferson |
| Additional Details | |
| Occupation | Foreman |
| Industry | Coal Mine |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 316 |
| Highest Grade | 5 |
| 1935 Residence | Same house |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
| Occupation | Foreman |
| Township / Ward | Harden Dale |
| Est. Birth Year | ~1891 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| William Hamilton | Head | — | 49 | ~1891 |
| William Hamilton | Son | — | 19 | ~1921 |
| Minnie Hamilton | Spouse | — | 48 | ~1892 |
Census Appearances
1900
Jefferson, Alabama
Son, age 8
Jefferson, Alabama · implied b. ~1892 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hamilton |
| Given Name | Willie M |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Alabama |
| Birth Month | Feb |
| Birth Year | 1892 |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Can Read | No |
| Can Write | No |
| Speaks English | Yes |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1910
Jefferson, Alabama
Son, age 17
Jefferson, Alabama · implied b. ~1893 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hamilton |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Alabama |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Occupation | Laborer |
| Industry | Ore Mines |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1920
Jefferson, Alabama
Head, age 26
Jefferson, Alabama · implied b. ~1894 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hamilton |
| Given Name | Will |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 26 |
| Marital Status | Married |
| Birthplace | Alabama |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Occupation | Cook |
| Industry | Private Family |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1930
Jefferson, Alabama
Head, age 38
Jefferson, Alabama · implied b. ~1892 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hamilton |
| Given Name | Will |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Alabama |
| Age at First Marriage | 20 |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Occupation | Greaser |
| Industry | Rail Mill |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 4 |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1940
Jefferson-County, Alabama
Head, age 49
Jefferson-County, Alabama · implied b. ~1891 — 3 household members
| Surname | Hamilton |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Alabama |
| 1935 Residence (City) | Harden Dale |
| 1935 Residence (County) | Jefferson |
| Occupation | Foreman |
| Industry | Coal Mine |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 316 |
| Highest Grade | 5 |
| 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 William Hamilton across 5 US Census years (1900, 1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Martin Hamilton (~0.92 confidence) and father Ed Hamilton (~0.92 confidence) and mother Amanda Hamilton (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Martin Hamilton
b. ~1854
Source father
● Household
· direct · ~0.92
Father
Ed Hamilton
b. ~1864
Source father
● Household
· direct · ~0.92
Mother
Amanda Hamilton
b. ~1870
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Hamilton
Head · 1940 · age 49 · b. ~1891 · 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 — Jefferson-County, Alabama
Open full size
1940 US Federal Census — Jefferson-County, Alabama
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00046-00662)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Clinton J Kelly | 20 | Head | Attendant | Alabama |
| 42 | Willie L Kelly | 17 | Wife | — | Alabama |
| 43 | Clinton J Jr Kelly | 0 | Son | — | Alabama |
| 44 | Daniel B Notwell | 24 | Head | Driver | Alabama |
| 45 | Catherine D Notwell | 21 | Wife | — | Alabama |
| 46 | Shirley Notwell | 3 | Daughter | — | Alabama |
| 47 | Charles Mason | 30 | Head | Distributor | Alabama |
| 48 | Margaret Mason | 28 | Wife | — | Alabama |
| 49 | Charles M Mason | 5 | Son | — | Alabama |
| 50 | Lennon P B Cargo | 56 | Head | Operator | Alabama |
| 51 | Lilla Cargo | 47 | Wife | — | Alabama |
| 52 | Lennon P B Jr Cargo | 17 | Son | — | Alabama |
| 53 | William H Davis | 79 | Father in law | — | Alabama |
| 54 | Paul B Byers | 53 | Head | — | Alabama |
| 55 | Annie B Byers | 48 | Wife | — | Alabama |
| 56 | Paul Byers | 25 | Son | Actor | Alabama |
| 57 | Jewel Byers | 16 | Daughter | — | Alabama |
| 58 | John C Pinkerton | 26 | Head | Car Repair Helper | Alabama |
| 59 | Irma Pinkerton | 22 | Wife | — | Alabama |
| 60 | Joyce Pinkerton | 2 | Daughter | — | Alabama |
| 61 | Riley Ford Banty | 23 | Head | Laborer | Alabama |
| 62 | Martha Banty | 24 | Wife | — | Alabama |
| 63 | Jesse D Mcnair | 36 | Head | Bank Keeper | Georgia |
| 64 | Gertrude Mcnair | 35 | Wife | — | Alabama |
| 65 | Allan Mcnair | 6 | Son | — | Alabama |
| 66 | Wayne Mcnair | 1 | Son | — | Alabama |
| 67 | Herman Nickles | 32 | Head | Mechanic | Alabama |
| 68 | Carrie B Nickles | 36 | Wife | — | Alabama |
| 69 | Evelyn Nickles | 12 | Daughter | — | Alabama |
| 70 | Betty J Nickles | 8 | Daughter | — | Alabama |
| 71 | William Nickles | 5 | Son | — | Alabama |
| 72 | C E Paly | 30 | Head | Cabinet Maker | Alabama |
| 73 | Bernice S Paly | 28 | Wife | — | Alabama |
| 74 | Katherine Paly | 8 | Daughter | — | Alabama |
| 75 | William Paly | 6 | Son | — | Alabama |
| 76 | Judith Paly | 4 | Daughter | — | Alabama |
| 77 | James Paly | 2 | Son | — | Alabama |
| 78 | William Hamilton THIS PERSON | 49 | Head | Foreman | Alabama |
| 79 | Minnie Hamilton | 48 | Wife | — | Alabama |
| 80 | William Hamilton | 19 | Son | — | Alabama |
Pedigree Summary
William
Gen 1 · 3 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)