DH
David Harris — 1940 US Census Record
Model Tree available1940 United States Federal Census · Delaware-County, Pennsylvania
Our Model Tree links this David Harris across the 1920, 1930 and 1940 US Censuses in Delaware-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents John & Annie — first a head (b.~1895), then head of a 6-person household.
Age 45
b. ~1895
Male
Head
Born: Delaware
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Delaware-County, Pennsylvania |
| Surname | Harris |
| Given Name | David |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Delaware |
| 1935 Residence (City) | Chester |
| 1935 Residence (County) | Delaware |
| Additional Details | |
| Occupation | machinist |
| Industry | shipyard |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 2496 |
| Highest Grade | Hs 1 |
| 1935 Residence | Same House |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
| Occupation | Machinist |
| Township / Ward | Chester |
| Est. Birth Year | ~1895 |
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 David | Age | Birth yr |
|---|---|---|---|---|
| Shirley Harris | Daughter | — | 16 | ~1924 |
| David Harris | Head | — | 45 | ~1895 |
| John Harris | Son | — | 18 | ~1922 |
| William Harris | Son | — | 6 | ~1934 |
| Fred Harris | Son | — | 15 | ~1925 |
| Madeline Harris | Spouse | — | 42 | ~1898 |
Census Appearances
1920
Delaware, Pennsylvania
Son, age 25
Delaware, Pennsylvania · implied b. ~1895 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harris |
| Given Name | David M |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Delaware |
| Father's Birthplace | Delaware |
| Mother's Birthplace | Maryland |
| Occupation | Machinist |
| Industry | Ship Yard |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
1930
Delaware, Pennsylvania
Head, age 35
Delaware, Pennsylvania · implied b. ~1895 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harris |
| Given Name | David M |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Delaware |
| Age at First Marriage | 25 |
| Father's Birthplace | Delaware |
| Mother's Birthplace | Maryland |
| Occupation | saleslady |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 20.00 |
| Radio Set | R |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
1940
Delaware-County, Pennsylvania
Head, age 45
Delaware-County, Pennsylvania · implied b. ~1895 — 6 household members
| Surname | Harris |
| Given Name | David |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Delaware |
| 1935 Residence (City) | Chester |
| 1935 Residence (County) | Delaware |
| Occupation | machinist |
| Industry | shipyard |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 2496 |
| Highest Grade | Hs 1 |
| 1935 Residence | Same House |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
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 John Harris (~0.92 confidence) and mother Annie Harris (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Harris
b. ~1865
Source father
● Household
· direct · ~0.92
Mother
Annie Harris
b. ~1867
Source mother
● Household
· direct · ~0.92
This person
Anchor record
David Harris
Head · 1940 · age 45 · b. ~1895 · 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 — Delaware-County, Pennsylvania
Open full size
1940 US Federal Census — Delaware-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03488-00038)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Regina Mccue | 7 | Daughter | — | Pennsylvania |
| 42 | Russell Caston | 29 | Head | Laborer | Maryland |
| 43 | Evelyn Caston | 25 | Wife | — | Maryland |
| 44 | Marion L. Caston | 6 | Daughter | — | Maryland |
| 45 | Ann Caston | 4 | Daughter | — | Maryland |
| 46 | William Matzuk | 43 | Head | Chipper & Caulker | Pennsylvania |
| 47 | Mary B. Matzuk | 40 | Wife | — | Pennsylvania |
| 48 | Mary Matzuk | 18 | Daughter | — | Pennsylvania |
| 49 | William J. Matzuk | 16 | Son | — | Pennsylvania |
| 50 | Leo Mccue | 35 | Head | Truck Driver | Pennsylvania |
| 51 | Tekla Mccue | 32 | Wife | — | New Jersey |
| 52 | James Whitman | 43 | Head | — | Pennsylvania |
| 53 | William Whitman | 19 | Son | New Worker | Pennsylvania |
| 54 | Teresa Whitman | 17 | Daughter | New Worker | Pennsylvania |
| 55 | Marie Gillespie | 42 | Sister | — | Pennsylvania |
| 56 | John Dutrow | 62 | Lodger | Blacksmith Helper | Maryland |
| 57 | Joseph King | 59 | Lodger | Laborer | Delaware |
| 58 | David Harris THIS PERSON | 45 | Head | Machinist | Delaware |
| 59 | Madeline Harris | 42 | Wife | — | Pennsylvania |
| 60 | John C. Harris | 18 | Son | Machinist Helper | Pennsylvania |
| 61 | Shirley Harris | 16 | Daughter | New Worker | Pennsylvania |
| 62 | Fred M. Harris | 15 | Son | — | Pennsylvania |
| 63 | William P. Harris | 6 | Son | — | Pennsylvania |
| 64 | Edward Smith | 27 | Head | Killer | Pennsylvania |
| 65 | Leokadija Smith | 26 | Wife | — | Pennsylvania |
| 66 | Ronald Smith | 3 | Son | — | Pennsylvania |
| 67 | Eleanor L. Smith | 1 | Daughter | — | Pennsylvania |
| 68 | Leokadija Zajano | 48 | Mother-in-law | — | Poland |
| 69 | Josephine Morn | 52 | Head | — | Pennsylvania |
| 70 | Julia Morn | 27 | Daughter | Comptometer Opr. | Pennsylvania |
| 71 | Joseph F. Berman | 24 | Head | Master Mechanic | Pennsylvania |
| 72 | Katherine Berman | 24 | Wife | — | Illinois |
| 73 | Patricia Berman | 9 | Daughter | — | Pennsylvania |
| 74 | Frances Berman | 4 | Daughter | — | Pennsylvania |
| 75 | Jacqueline Berman | 1 | Daughter | — | Pennsylvania |
| 76 | Harold Tetrault | 47 | Head | Manager | Poland |
| 77 | Jeannette Tetrault | 45 | Wife | — | Pennsylvania |
| 78 | Anna R. Sterling | 60 | Head | Saleswoman | Maryland |
| 79 | John Sterling | 35 | Son | Salesman | Maryland |
| 80 | Walter Penny | 34 | Head | Stock Clerk | Pennsylvania |
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)