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Andrew Thomas — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Andrew Thomas across the 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a son (b.~1927), then head of a 11-person household.
Age 13
b. ~1927
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Thomas |
| Given Name | Andrew |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Millvale |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Millvale |
| Est. Birth Year | ~1927 |
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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Andrew | Age | Birth yr |
|---|---|---|---|---|
| Stephen Thomas | Son | — | 15 | ~1925 |
| Stephen Thomas | Head | — | 39 | ~1901 |
| Sylvia Thomas | Daughter | — | 10 | ~1930 |
| Marie Thomas | Daughter | — | 14 | ~1926 |
| Edward Thomas | Son | — | 11 | ~1929 |
| Andrew Thomas | Son | — | 13 | ~1927 |
| Nancy Thomas | Daughter | — | 2 | ~1938 |
| Annax Thomas | Spouse | — | 33 | ~1907 |
| James Thomas | Son | — | 3 | ~1937 |
| Richard Thomas | Son | — | 6 | ~1934 |
| Robert Thomas | Son | — | 7 | ~1933 |
Census Appearances
1930
Allegheny, Pennsylvania
Son, age 4
Allegheny, Pennsylvania · implied b. ~1926 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Andrew |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Italy |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | No |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Son, age 13
Allegheny-County, Pennsylvania · implied b. ~1927 — 11 household members
| Surname | Thomas |
| Given Name | Andrew |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Millvale |
| 1935 Residence (County) | Allegheny |
| 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 Andrew Thomas across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Andrew Thomas
Son · 1940 · age 13 · b. ~1927 · Pennsylvania
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Sibling
Stephen Thomas
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Nancy Thomas
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Thomas
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marie Thomas
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Thomas
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Sylvia Thomas
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Thomas
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Thomas
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
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-t0627-03411-00042)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Paul Mint | 5 | Son | — | Pennsylvania |
| 42 | Joseph Cvetick | 65 | Head | — | Yugoslavia |
| 43 | Mary Cvetick | 67 | Wife | — | Yugoslavia |
| 44 | Rose Cvetick | 28 | Daughter | Doffer | Pennsylvania |
| 45 | Stephen Thomas | 39 | Head | Machinist Helper | Pennsylvania |
| 46 | Anna(X) Thomas | 33 | Wife | — | Pennsylvania |
| 47 | Stephen Jr Thomas | 15 | Son | — | Pennsylvania |
| 48 | Marie Thomas | 14 | Daughter | — | Pennsylvania |
| 49 | Andrew Thomas THIS PERSON | 13 | Son | — | Pennsylvania |
| 50 | Edward Thomas | 11 | Son | — | Pennsylvania |
| 51 | Sylvia Thomas | 10 | Daughter | — | Pennsylvania |
| 52 | Robert Thomas | 7 | Son | — | Pennsylvania |
| 53 | Richard Thomas | 6 | Son | — | Pennsylvania |
| 54 | James Thomas | 3 | Son | — | Pennsylvania |
| 55 | Nancy Thomas | 2 | Daughter | — | Pennsylvania |
| 56 | John Kleinkample | 54 | Head | Laborer | Pennsylvania |
| 57 | Emilie Kleinkample | 53 | Wife | — | Bohemia |
| 58 | Lillian Kleinkample | 22 | Daughter | — | Pennsylvania |
| 59 | Mary(X) Kabelly | 58 | Head | — | Pennsylvania |
| 60 | Louis Kabelly | 37 | Son | Loader | Pennsylvania |
| 61 | Raymond Lahody | 44 | Head | Bench Hand | Pennsylvania |
| 62 | Anna(X) Lahody | 42 | Wife | — | Pennsylvania |
| 63 | Michael Chitto | 76 | Head | — | Austria |
| 64 | Josephine Chitto | 69 | Wife | — | Austria |
| 65 | Sabina Chitto | 38 | Daughter | Machine Operator | Austria |
| 66 | Michael Chitto | 31 | Son | — | Pennsylvania |
| 67 | Martin Lydon | 37 | Head | Truck Driver | Pennsylvania |
| 68 | Marie B. Lydon | 35 | Wife | — | Hungary |
| 69 | Martin E. Lydon | 12 | Son | — | Pennsylvania |
| 70 | John Lydon | 6 | Son | — | Pennsylvania |
| 71 | Joseph Arpasi | 35 | Head | Stationary Fireman | Pennsylvania |
| 72 | Elizabeth Arpasi | 29 | Wife | — | Pennsylvania |
| 73 | Joseph Arpasi | 6 | Son | — | Pennsylvania |
| 74 | Elizabeth Arpasi | 2 | Daughter | — | Pennsylvania |
| 75 | Andrew Gunderluck | 45 | Head | Melder | Yugoslavia |
| 76 | Mary Gunderluck | 46 | Wife | — | Austria |
| 77 | Anna Gunderluck | 19 | Daughter | Machine Operator | Pennsylvania |
| 78 | Catherine Gunderluck | 18 | Daughter | — | Pennsylvania |
| 79 | Michael Gunderluck | 15 | Son | — | Pennsylvania |
| 80 | George Gunderluck | 13 | 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)