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William Dunlap — 1940 US Census Record
Linked across censuses1940 United States Federal Census · St.-Clair-County, Alabama
Our Model Tree links this William Dunlap across the 1930 and 1940 US Censuses in St.-Clair-County, Alabama (XGBoost, ~Confirmed) — first a head (b.~1899), then head of a 6-person household.
Age 41
b. ~1899
Male
Head
Born: Alabama
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Clair-County, Alabama |
| Surname | Dunlap |
| Given Name | William D. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Alabama |
| 1935 Residence (City) | Beat 14 |
| 1935 Residence (County) | St. Clair |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | NP |
| Hours Worked | 50 |
| Income (1939) | 0 |
| Highest Grade | No 6 |
| 1935 Residence | Same Place |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
| Occupation | Farmer |
| Township / Ward | Beat 14 |
| 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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Dora Dunlap | Spouse | — | 37 | ~1903 |
| William Dunlap | Head | — | 41 | ~1899 |
| Mary Dunlap | Daughter | — | 14 | ~1926 |
| Johnnie Dunlap | Son | — | 11 | ~1929 |
| William Dunlap | Son | — | 16 | ~1924 |
| Ruby Dunlap | Daughter | — | 13 | ~1927 |
Census Appearances
1930
St Clair, …
Head, age 27
St Clair, Alabama · implied b. ~1903 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dunlap |
| Given Name | William H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Alabama |
| Age at First Marriage | 25 |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Occupation | Laborer |
| Industry | Planing Mill |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 3 |
| Veteran | No |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1940
St.-Clair-County, Alabama
Head, age 41
St.-Clair-County, Alabama · implied b. ~1899 — 6 household members
| Surname | Dunlap |
| Given Name | William D. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Alabama |
| 1935 Residence (City) | Beat 14 |
| 1935 Residence (County) | St. Clair |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | NP |
| Hours Worked | 50 |
| Income (1939) | 0 |
| Highest Grade | No 6 |
| 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 William Dunlap across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
William Dunlap
Head · 1940 · age 41 · b. ~1899 · 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 — St.-Clair-County, Alabama
Open full size
1940 US Federal Census — St.-Clair-County, Alabama
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00078-00423)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Bessie Weldon | 58 | Head | — | Alabama |
| 2 | Thomas Thomas | 14 | Son | — | Alabama |
| 3 | Lillie Howard | 26 | Head | — | Alabama |
| 4 | Marshel Howard | 29 | Husband | Sawmiller | Alabama |
| 5 | Everett Howard | 7 | Son | — | Alabama |
| 6 | Margie Howard | 4 | Daughter | — | Alabama |
| 7 | Vola Howard | 2 | Daughter | — | Alabama |
| 8 | Mack Brown | 53 | Lodger | — | Alabama |
| 9 | Thomas A. White | 33 | Head | Fireman | Mississippi |
| 10 | Addie M. White | 24 | Daughter | — | Alabama |
| 11 | Minnie S. White | 20 | Daughter | — | Alabama |
| 12 | Brooks R. White | 13 | Son | — | Alabama |
| 13 | Albert S. Austin | 61 | Head | Farmer | Georgia |
| 14 | Daisy M. Austin | 61 | Wife | — | Alabama |
| 15 | Lois Austin | 25 | Daughter | — | Alabama |
| 16 | Alma R. Austin | 4 | Granddaughter | — | Alabama |
| 17 | Adkins King | 57 | Head | Farmer | Alabama |
| 18 | Nora King | 47 | Wife | — | Alabama |
| 19 | Ellin King | 21 | Daughter | — | Alabama |
| 20 | Leonard King | 18 | Son | — | Alabama |
| 21 | Garnett King | 15 | Son | — | Alabama |
| 22 | Author King | 13 | Son | — | Alabama |
| 23 | L. J. King | 11 | Son | — | Alabama |
| 24 | Lillie M. King | 8 | Daughter | — | Alabama |
| 25 | Willie D. Wilkins | 53 | Head | Farmer | Alabama |
| 26 | Nancy L. Wilkins | 50 | Wife | — | Alabama |
| 27 | Millie E. Wilkins | 17 | Daughter | — | Alabama |
| 28 | Charles Rich | 28 | Head | Farm Labor | Alabama |
| 29 | Francis L. Rich | 25 | Wife | — | Alabama |
| 30 | Henry R. Moody | 67 | Head | Farmer | Texas |
| 31 | Levada Moody | 43 | Wife | — | Alabama |
| 32 | Sara F. Moody | 21 | Daughter | — | Alabama |
| 33 | Charles R. Moody | 9 | Son | — | Alabama |
| 34 | Teddie R. Woods | 23 | Lodger | Farm Labor | Alabama |
| 35 | William D. Dunlap THIS PERSON | 41 | Head | Farmer | Alabama |
| 36 | Dora L. Dunlap | 37 | Wife | — | Alabama |
| 37 | Mary L. Dunlap | 14 | Daughter | — | Alabama |
| 38 | William D. Jr. Dunlap | 16 | Son | — | Alabama |
| 39 | Ruby J. Dunlap | 13 | Daughter | — | Alabama |
| 40 | Johnnie A. Dunlap | 11 | Son | — | 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)