DH
David Harris — 1940 US Census Record
Model Tree available1940 United States Federal Census · Jefferson-County, Alabama
Our Model Tree links this David Harris across the 1920, 1930 and 1940 US Censuses in Jefferson-County, Alabama (XGBoost, ~Confirmed), with identified parents Albert & Sylvia — first a head (b.~1906), then head of a 3-person household.
Age 34
b. ~1906
Male
Head
Born: Alabama
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Jefferson-County, Alabama |
| Surname | Harris |
| Given Name | David |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Alabama |
| 1935 Residence (City) | Birmingham |
| 1935 Residence (County) | Jefferson |
| Additional Details | |
| Occupation | Carpenter |
| Industry | Construction Co. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 780 |
| Highest Grade | H 7 |
| 1935 Residence | Same place |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
| Occupation | Carpenter |
| Township / Ward | Birmingham |
| Est. Birth Year | ~1906 |
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 David | Age | Birth yr |
|---|---|---|---|---|
| Mary Davis | Daughter | — | 17 | ~1923 |
| David Harris | Head | — | 34 | ~1906 |
| Cora Harris | Spouse | — | 38 | ~1902 |
Census Appearances
1920
Jefferson, Alabama
Son, age 13
Jefferson, Alabama · implied b. ~1907 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harris |
| Given Name | David |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Alabama |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1930
Jefferson, Alabama
Head, age 24
Jefferson, Alabama · implied b. ~1906 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harris |
| Given Name | David |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 24 |
| Marital Status | Married |
| Birthplace | Alabama |
| Age at First Marriage | 17 |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Occupation | Farmer |
| Industry | General |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 10 |
| Veteran | No |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1940
Jefferson-County, Alabama
Head, age 34
Jefferson-County, Alabama · implied b. ~1906 — 3 household members
| Surname | Harris |
| Given Name | David |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Alabama |
| 1935 Residence (City) | Birmingham |
| 1935 Residence (County) | Jefferson |
| Occupation | Carpenter |
| Industry | Construction Co. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 780 |
| Highest Grade | H 7 |
| 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 David Harris across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Albert Harris (~0.92 confidence) and mother Sylvia Harris (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Albert Harris
b. ~1875
Source father
● Household
· direct · ~0.92
Mother
Sylvia Harris
b. ~1875
Source mother
● Household
· direct · ~0.92
This person
Anchor record
David Harris
Head · 1940 · age 34 · b. ~1906 · 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-t0627-00095-00779)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Annie Mae Noble | 25 | wife | — | Alabama |
| 42 | Cora Hugley | 52 | Head | — | Alabama |
| 43 | Lucia Hugley | 30 | son | — | Alabama |
| 44 | O. C. Hugley | 27 | son | — | Alabama |
| 45 | Alex Strong | 73 | father | — | Alabama |
| 46 | Henry Chapman | 23 | Head | Concrete Finisher | Alabama |
| 47 | Mattie Chapman | 20 | wife | — | Alabama |
| 48 | John Andrew Curley | 2 | step-son | — | Alabama |
| 49 | Annie Mae Murphy | 17 | sister-in-law | — | Alabama |
| 50 | Hurrie Sharp | 33 | Head | Tin Presser | Alabama |
| 51 | Mary Sharp | 34 | wife | — | Alabama |
| 52 | Eddie Sharp | 31 | brother | Tin Presser | Alabama |
| 53 | Tommie Sharp | 28 | brother | Laborer | Alabama |
| 54 | Ella Maryett | 18 | sister-in-law | — | Alabama |
| 55 | Ralph Washington | 26 | cousin | Truck Loader | Alabama |
| 56 | Hershel Mcgee | 19 | Head | Clerk | Alabama |
| 57 | Flora Mcgee | 19 | wife | — | Alabama |
| 58 | Alena Grant | 33 | sister | Maid | Alabama |
| 59 | William H. Mccray | 15 | nephew | — | Alabama |
| 60 | Robert L. Harder | 25 | Head | Janitor | Alabama |
| 61 | Lula Harder | 30 | wife | — | Alabama |
| 62 | Doris Jan Harder | 7 | daughter | — | Alabama |
| 63 | Bobbie Ann Harder | 3 | daughter | — | Alabama |
| 64 | James Fulton Harder | 1 | son | — | Alabama |
| 65 | Horace L. Higher | 43 | Head | Salesman | Georgia |
| 66 | Sara Higher | 26 | wife | — | Alabama |
| 67 | Waddell Fields | 29 | nephew | Ice Man | Alabama |
| 68 | Augusta Waters | 33 | Head | Cashier | Alabama |
| 69 | Hayden Day | 33 | lodger | Skilled Laborer | Alabama |
| 70 | Roscoe Malone | 42 | Head | Laborer | Georgia |
| 71 | Willie Malone | 30 | wife | — | Georgia |
| 72 | David Harris THIS PERSON | 34 | Head | Carpenter | Alabama |
| 73 | Cora Harris | 38 | wife | — | Alabama |
| 74 | Mary Davis | 17 | daughter | — | Alabama |
| 75 | Henry Williams | 50 | Head | Section Hand | Alabama |
| 76 | Adella Williams | 47 | wife | — | Alabama |
| 77 | Tethosene Williams | 16 | daughter | — | Alabama |
| 78 | Adella Euphrata Williams | 15 | daughter | — | Alabama |
| 79 | Walter Petty | 29 | Head | Laborer | Alabama |
| 80 | Fannie Petty | 27 | wife | — | Alabama |
Pedigree Summary
David
Gen 1 · 2 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)