DA
David Anderson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this David Anderson across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1894), then head of a 5-person household.
Age 46
b. ~1894
Male
Head
Born: Scotland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Anderson |
| Given Name | David J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Munhall |
| 1935 Residence (County) | Allegheny |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Core maker |
| Industry | Machine co. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 2040 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
| Occupation | Core Maker |
| Township / Ward | Munhall |
| Est. Birth Year | ~1894 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to David | Age | Birth yr |
|---|---|---|---|---|
| David Anderson | Head | — | 46 | ~1894 |
| Andrew Anderson | Son | — | 4 | ~1936 |
| David Anderson | Son | — | 3 | ~1937 |
| William Anderson | Son | — | 6 | ~1934 |
| Margaret Anderson | Spouse | — | 53 | ~1887 |
Census Appearances
1920
Allegheny, Pennsylvania
Other, age 26
Allegheny, Pennsylvania · implied b. ~1894 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Anderson |
| Given Name | David |
| Relationship to Head | Boarder |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | Scotland |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Salesman |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Scotch |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1930
Allegheny, Pennsylvania
Other, age 36
Allegheny, Pennsylvania · implied b. ~1894 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Anderson |
| Given Name | David |
| Relationship to Head | Brother |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Single |
| Birthplace | Scotland |
| Naturalization Status | First papers filed |
| Year of Immigration | 1923 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Chainman |
| Industry | Machine Co. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1940
Allegheny-County, Pennsylvania
Head, age 46
Allegheny-County, Pennsylvania · implied b. ~1894 — 5 household members
| Surname | Anderson |
| Given Name | David J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Munhall |
| 1935 Residence (County) | Allegheny |
| Naturalization Status | Naturalized |
| Occupation | Core maker |
| Industry | Machine co. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 2040 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
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 Anderson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
David Anderson
Head · 1940 · age 46 · b. ~1894 · Pennsylvania
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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 — Allegheny-County, Pennsylvania
Open full size
1940 US Federal Census — Allegheny-County, Pennsylvania
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-03412-00327)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | J. Leonard Hough | 27 | Head | Clerk | Pennsylvania |
| 42 | Helen R. Hough | 27 | Wife | — | Pennsylvania |
| 43 | Emma M. Campbell | 48 | Head | Telephone Operator | Pennsylvania |
| 44 | Susie Mikulla | 55 | Head | — | Austria |
| 45 | Agnes Mikulla | 35 | Daughter | Clerk | Pennsylvania |
| 46 | James R. Mulligan | 46 | Head | Chief Inspector | Pennsylvania |
| 47 | Sophie Mulligan | 45 | Wife | — | Pennsylvania |
| 48 | James Mulligan | 21 | Son | Machinist | Pennsylvania |
| 49 | Raymond Mulligan | 17 | Son | — | Pennsylvania |
| 50 | Mary Dymsia | 76 | Mother-in-law | — | Germany |
| 51 | John Kish | 38 | Head | Agent | Pennsylvania |
| 52 | Mary Kish | 25 | Wife | — | Pennsylvania |
| 53 | John Jr. Kish | 2 | Son | — | Pennsylvania |
| 54 | Robert Kish | 0 | Son | — | Pennsylvania |
| 55 | Michael Mihaliko | 54 | Head | Pensioned | Czecho-Slovakia |
| 56 | Anna Mihaliko | 50 | Wife | — | Czecho-Slovakia |
| 57 | David J. Anderson THIS PERSON | 46 | Head | Core Maker | Scotland |
| 58 | Margaret Anderson | 53 | Wife | — | Scotland |
| 59 | William Anderson | 6 | Son | — | Pennsylvania |
| 60 | Andrew Anderson | 4 | Son | — | Pennsylvania |
| 61 | David John Anderson | 3 | Son | — | Pennsylvania |
| 62 | J. P. Cameron | 48 | Head | Fireman | Pennsylvania |
| 63 | Maud S. Cameron | 45 | Wife | — | Pennsylvania |
| 64 | Alfred H. Maiden | 55 | Head | Clerk | Pennsylvania |
| 65 | Myrtle Maiden | 55 | Wife | — | Pennsylvania |
| 66 | Dora Thater | 83 | Mother-in-law | — | Pennsylvania |
| 67 | Frank Lobora | 44 | Head | — | Pennsylvania |
| 68 | Josephine Lobora | 44 | Wife | — | Pennsylvania |
| 69 | Vincent Lobora | 21 | Son | Laborer | Pennsylvania |
| 70 | Frank Jr. Lobora | 16 | Son | — | Pennsylvania |
| 71 | Eugene Rushe | 25 | Son-in-law | Laborer | Pennsylvania |
| 72 | Ella Rushe | 23 | Daughter | — | Pennsylvania |
| 73 | Thomas C. Rushe | 1 | Grandson | — | Pennsylvania |
| 74 | Joseph Lorenzo | 47 | Head | Owner | Italy |
| 75 | Armellinda Lorenzo | 51 | Wife | — | Italy |
| 76 | William Mckay | 36 | Head | Stamper | Scotland |
| 77 | Janet Mckay | 30 | Wife | — | Scotland |
| 78 | Patrick Mcconville | 29 | Head | Clerk | Pennsylvania |
| 79 | Mary Mcconville | 46 | Sister | — | 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)