DS
David Scott — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this David Scott across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1881), then head of a 6-person household.
Age 59
b. ~1881
Male
Head
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Scott |
| Given Name | David H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 59 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Occupation | Engineer |
| Industry | Railroad |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 3000 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Engineer |
| Township / Ward | Pittsburgh |
| Est. Birth Year | ~1881 |
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 |
|---|---|---|---|---|
| Dolores Guilfoyle | Other | — | 32 | ~1908 |
| Martha Scott | Daughter | — | 31 | ~1909 |
| Martha Scott | Spouse | — | 60 | ~1880 |
| Marian Scott | Daughter | — | 24 | ~1916 |
| Margaret Miller | Other | — | 38 | ~1902 |
| David Scott | Head | — | 59 | ~1881 |
Census Appearances
1920
Allegheny, Pennsylvania
Head, age 39
Allegheny, Pennsylvania · implied b. ~1881 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Scott |
| Given Name | David |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Engineer |
| Industry | Locomotive |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Head, age 48
Allegheny, Pennsylvania · implied b. ~1882 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Scott |
| Given Name | David H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 25 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Laborer |
| Industry | Railroad |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 40 |
| Radio Set | R |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Head, age 59
Allegheny-County, Pennsylvania · implied b. ~1881 — 6 household members
| Surname | Scott |
| Given Name | David H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 59 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh |
| 1935 Residence (County) | Allegheny |
| Occupation | Engineer |
| Industry | Railroad |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 3000 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| 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 Scott across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
David Scott
Head · 1940 · age 59 · b. ~1881 · 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-t0627-03656-00442)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Ross J. Paullet | 45 | Head | Painter | Italy |
| 42 | Hedwig Paullet | 40 | Wife | — | Pennsylvania |
| 43 | Ruth Paullet | 17 | Daughter | — | Pennsylvania |
| 44 | Ross Jr. Paullet | 15 | Son | — | Pennsylvania |
| 45 | Jean M. Paullet | 13 | Daughter | — | Pennsylvania |
| 46 | Richard Paullet | 9 | Son | — | Pennsylvania |
| 47 | Carol Paullet | 7 | Daughter | — | Pennsylvania |
| 48 | Alex Paullet | 6 | Son | — | Pennsylvania |
| 49 | Doris Paullet | 5 | Daughter | — | Pennsylvania |
| 50 | Robert Paullet | 3 | Son | — | Pennsylvania |
| 51 | John J. Paullet | 1 | Son | — | Pennsylvania |
| 52 | Mary L. Paullet | 0 | Daughter | — | Pennsylvania |
| 53 | David H. Scott THIS PERSON | 59 | Head | Engineer | Pennsylvania |
| 54 | Martha E. Scott | 60 | Wife | — | Pennsylvania |
| 55 | Martha D. Scott | 31 | Daughter | — | Pennsylvania |
| 56 | Marian G. Scott | 24 | Daughter | Office Clerk | Pennsylvania |
| 57 | Margaret C. Miller | 38 | Cousin | Bookkeeper | Pennsylvania |
| 58 | Dolores Guilfoyle | 32 | Lodger | Nurse | Pennsylvania |
| 59 | — | None | — | — | — |
| 60 | Velma Louise Payne | 36 | Head | Nurse | Pennsylvania |
| 61 | Richard Jr. Hayes | 54 | Head | Butler | Eire Ireland |
| 62 | Mary Ann Hayes | 53 | Wife | — | Eire Ireland |
| 63 | Elizabeth Hayes | 21 | Daughter | Stenographer | Pennsylvania |
| 64 | Mary Ellen Hayes | 18 | Daughter | New Worker | Pennsylvania |
| 65 | Martin Lappe | 37 | Head | Policeman | Pennsylvania |
| 66 | Olga Lappe | 34 | Wife | Nurse | Pennsylvania |
| 67 | Martin Lappe | 10 | Son | — | Pennsylvania |
| 68 | Valeria Lappe | 8 | Daughter | — | Pennsylvania |
| 69 | Victor Ehrhard | 59 | Father-in-law | — | France |
| 70 | Mary Ehrhard | 58 | Mother-in-law | Maid | France |
| 71 | Victor Jr. Ehrhard | 33 | Brother | Baker | Pennsylvania |
| 72 | Alexandra Ehrhard | 19 | Cousin | Clerk | Pennsylvania |
| 73 | Frank Kettle | 55 | Head | Laborer | Pennsylvania |
| 74 | Chris M. Conner | 65 | Head | Machinist | Pennsylvania |
| 75 | James Watson | 65 | Head | Janitor | Ohio |
| 76 | Lena Watson | 63 | Wife | — | Germany |
| 77 | Lorraine Watson | 32 | Daughter | Stenographer | Pennsylvania |
| 78 | Fred W. Siebert | 34 | Head | Clerk | Pennsylvania |
| 79 | Martha W. Siebert | 30 | Wife | — | Pennsylvania |
| 80 | Fred W. Jr. Siebert | 10 | Son | — | Pennsylvania |
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)