DH
David Harris — 1940 US Census Record
Model Tree available1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this David Harris across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Rebecca & Joseph — first a head (b.~1910), then head of a 3-person household.
Age 30
b. ~1910
Male
Head
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Harris |
| Given Name | David |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh city |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Occupation | Engineer |
| Industry | Air Stationary City |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 2400 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Engineer |
| Township / Ward | Pittsburgh City |
| Est. Birth Year | ~1910 |
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 |
|---|---|---|---|---|
| David Harris | Head | — | 30 | ~1910 |
| David Harris | Son | — | 2 | ~1938 |
| Gwendolyn Harris | Spouse | — | 25 | ~1915 |
Census Appearances
1920
Allegheny, Pennsylvania
Son, age 10
Allegheny, Pennsylvania · implied b. ~1910 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harris |
| Given Name | David |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Russia |
| Mother's Birthplace | Russia |
| Occupation | school |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Jewish |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Son, age 20
Allegheny, Pennsylvania · implied b. ~1910 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harris |
| Given Name | David |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Russia |
| Mother's Birthplace | Russia |
| Occupation | Clerk |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Head, age 30
Allegheny-County, Pennsylvania · implied b. ~1910 — 3 household members
| Surname | Harris |
| Given Name | David |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh city |
| 1935 Residence (County) | Allegheny |
| Occupation | Engineer |
| Industry | Air Stationary City |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 2400 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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: mother Rebecca Harris (~0.92 confidence) and father Joseph Harris (~0.92 confidence) and father Jacob Harris (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Rebecca Harris
b. ~1882
Source mother
● Household
· direct · ~0.92
Father
Joseph Harris
b. ~1883
Source father
● Household
· direct · ~0.92
Father
Jacob Harris
b. ~1886
Source father
● Household
· direct · ~0.92
This person
Anchor record
David Harris
Head · 1940 · age 30 · b. ~1910 · Pennsylvania
★ 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 — Allegheny-County, Pennsylvania
Open full size
1940 US Federal Census — Allegheny-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03675-00081)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Chester Mary S Stone | 35 | Wife | — | Pennsylvania |
| 42 | John E Schlegel | 10 | Step-son | — | Pennsylvania |
| 43 | Richard E Schlegel | 8 | Step-son | — | Pennsylvania |
| 44 | Edgar Mason | 56 | Head | Vice President | Illinois |
| 45 | Norma D Mason | 55 | Wife | — | Pennsylvania |
| 46 | Edgar D Jr Mason | 25 | Son | Phys Ed Teacher | Pennsylvania |
| 47 | Norma D Mason | 23 | Daughter | — | Pennsylvania |
| 48 | Jack Mason | 20 | Son | Salesman | Pennsylvania |
| 49 | Ida Kimberlin | 75 | Mother-in-law | — | Pennsylvania |
| 50 | Clarence E Wray | 53 | Head | Manager | Pennsylvania |
| 51 | Ruby D Wray | 49 | Wife | — | Pennsylvania |
| 52 | Virginia Wray | 18 | Daughter | — | Pennsylvania |
| 53 | Albert H Markey | 62 | Head | Travelling Salesman | West Virginia |
| 54 | Anne X Markey | 60 | Wife | — | Pennsylvania |
| 55 | Jack P Markey | 22 | Son | File Clerk | Pennsylvania |
| 56 | Edward H Markey | 20 | Son | File Clerk | Pennsylvania |
| 57 | Betty Jane Markey | 20 | Daughter | Stenographer | Pennsylvania |
| 58 | John P Pugh | 50 | Head | Proprietor | Pennsylvania |
| 59 | Garnett Pugh | 35 | Wife | — | Pennsylvania |
| 60 | Oscar J Goettman | 66 | Head | Proprietor | Pennsylvania |
| 61 | Louisa D Goettman | 60 | Wife | — | Pennsylvania |
| 62 | I H Adcock | 60 | Head | Salesman | Pennsylvania |
| 63 | Elizabeth X Adcock | 60 | Wife | — | Pennsylvania |
| 64 | Wayne Adcock | 37 | Son | Salesman | Pennsylvania |
| 65 | William Adcock | 35 | Son | Salesman | Pennsylvania |
| 66 | Alice M Adcock | 32 | Daughter-in-law | — | Pennsylvania |
| 67 | Audrey E Adcock | 7 | Granddaughter | — | Pennsylvania |
| 68 | Jocelyn M Adcock | 6 | Granddaughter | — | Pennsylvania |
| 69 | William Jr Adcock | 1 | Grandson | — | Pennsylvania |
| 70 | Henry Mensing | 51 | Head | — | Germany |
| 71 | Theodore Mensing | 24 | Son | Salesman | Pennsylvania |
| 72 | Helene Hamburger | 74 | Housekeeper | Housekeeper | Germany |
| 73 | David Harris THIS PERSON | 30 | Head | Engineer | Pennsylvania |
| 74 | Gwendolyn D Harris | 25 | Wife | — | Pennsylvania |
| 75 | David Harris | 2 | Son | — | Pennsylvania |
| 76 | William B Nekomaty | 74 | Head | Proprietor | Maryland |
| 77 | Catherine Nekomaty | 49 | Wife | — | — |
| 78 | Ernest Sussop | 47 | Head | Bookkeeper | Pennsylvania |
| 79 | Martha E Sussop | 49 | Wife | — | Pennsylvania |
| 80 | Marie P Schuster | 83 | Mother-in-law | — | Pennsylvania |
Pedigree Summary
David
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)