TM
Thomas Mcdonough — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Philadelphia-County, Pennsylvania
Our Model Tree links this Thomas Mcdonough across the 1930 and 1940 US Censuses in Philadelphia-County, Pennsylvania (XGBoost, ~Confirmed) — first a son (b.~1927), then head of a 12-person household.
Age 13
b. ~1927
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Philadelphia-County, Pennsylvania |
| Surname | McDonough |
| Given Name | Thomas |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Philadelphia City |
| 1935 Residence (County) | Philadelphia |
| Additional Details | |
| Highest Grade | 6 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Philadelphia City |
| 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.
12 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Thomas | Age | Birth yr |
|---|---|---|---|---|
| John Mcdonough | Son | — | 10 | ~1930 |
| Florence Mcdonough | Daughter | — | 4 | ~1936 |
| Frank Mcdonough | Son | — | 6 | ~1934 |
| Thomas Mcdonough | Son | — | 13 | ~1927 |
| Robert Mcdonough | Son | — | 2 | ~1938 |
| Anna Mcdonough | Daughter | — | 8 | ~1932 |
| Anna Mcdonough | Spouse | — | 31 | ~1909 |
| Anna Salayda | Other | — | 35 | ~1905 |
| Helen Mcdonough | Daughter | — | 12 | ~1928 |
| Frank Mcdonough | Head | — | 37 | ~1903 |
| Margaret Mcdonough | Daughter | — | 1 | ~1939 |
| Romney Smith | Other | — | 54 | ~1886 |
Census Appearances
1930
Philadelphia, Pennsylvania
Son, age 2
Philadelphia, Pennsylvania · implied b. ~1928 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McDonough |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Philadelphia-County, Pennsylvania
Son, age 13
Philadelphia-County, Pennsylvania · implied b. ~1927 — 12 household members
| Surname | McDonough |
| Given Name | Thomas |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Philadelphia City |
| 1935 Residence (County) | Philadelphia |
| Highest Grade | 6 |
| 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 Thomas Mcdonough across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Thomas Mcdonough
Son · 1940 · age 13 · b. ~1927 · Pennsylvania
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Sibling
John Mcdonough
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anna Mcdonough
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Mcdonough
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Mcdonough
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Mcdonough
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frank Mcdonough
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Florence Mcdonough
Sibling · 1940 · age 4
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 — Philadelphia-County, Pennsylvania
Open full size
1940 US Federal Census — Philadelphia-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03695-00113)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Frank Bielitsky | 4 | son | — | Penna |
| 2 | William Bilyi | 47 | head | Carpenter | Austria |
| 3 | Catharine Bilyi | 38 | wife | — | Austria |
| 4 | Anna Bilyi | 23 | daughter | Salesgirl | Pennsylvania |
| 5 | Peter Bilyi | 21 | son | Salesman | Pennsylvania |
| 6 | Anthony Bilyi | 18 | son | New Worker | Pennsylvania |
| 7 | John Bilyi | 17 | son | — | Pennsylvania |
| 8 | Mildred Bilyi | 14 | daughter | — | Pennsylvania |
| 9 | Stanley Bilyi | 12 | son | — | Pennsylvania |
| 10 | George Bilyi | 10 | son | — | Pennsylvania |
| 11 | Helen Bilyi | 8 | daughter | — | Pennsylvania |
| 12 | Michael Federowicz | 57 | head | Chipper | Poland |
| 13 | Kathrine Federowicz | 46 | wife | — | Poland |
| 14 | Julia Federowicz | 17 | daughter | — | Pennsylvania |
| 15 | Michaelina Federowicz | 9 | daughter | — | Pennsylvania |
| 16 | Harry Burack | 50 | lodger | — | Poland |
| 17 | James Coburn | 37 | lodger | Ship Fitter | Massachusetts |
| 18 | Martin Mycanika | 33 | head | Laborer | Poland |
| 19 | Anna Mycanika | 29 | wife | — | Pennsylvania |
| 20 | William Mycanika | 6 | son | — | Pennsylvania |
| 21 | Olga Mycanika | 3 | daughter | — | Pennsylvania |
| 22 | Dimitri Mycanika | 2 | daughter | — | Pennsylvania |
| 23 | Emil Anderson | 45 | lodger | Carpenter | Sweden |
| 24 | Frank Mcdonough | 37 | head | Truck Driver | Pennsylvania |
| 25 | Anna Mcdonough | 31 | wife | — | Pennsylvania |
| 26 | Thomas Mcdonough THIS PERSON | 13 | son | — | Pennsylvania |
| 27 | Helen Mcdonough | 12 | daughter | — | Pennsylvania |
| 28 | John Mcdonough | 10 | son | — | Pennsylvania |
| 29 | Anna Mcdonough | 8 | daughter | — | Pennsylvania |
| 30 | Frank Jr. Mcdonough | 6 | son | — | Pennsylvania |
| 31 | Florence Mcdonough | 4 | daughter | — | Pennsylvania |
| 32 | Robert Mcdonough | 2 | son | — | Pennsylvania |
| 33 | Margaret Mcdonough | 1 | daughter | — | Pennsylvania |
| 34 | Romney Smith | 54 | lodger | Gardener | Pennsylvania |
| 35 | Anna Salayda | 35 | lodger | Waitress | New Jersey |
| 36 | John Kozlowski | 56 | head | Baker | Poland |
| 37 | Mary Kozlowski | 56 | wife | — | Poland |
| 38 | Pauline Kozlowski | 20 | daughter | Cigar Maker | Pennsylvania |
| 39 | Matthew Kozlowski | 18 | son | New Worker | Pennsylvania |
| 40 | Joseph Soja | 47 | head | Baker | Poland |
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)