MK
Margaret Kennedy — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Margaret Kennedy across the 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a daughter (b.~1925), then head of a 11-person household.
Age 15
b. ~1925
Female
Daughter
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Kennedy |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Swissvale |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Highest Grade | H-1 |
| 1935 Residence | Same house |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Swissvale |
| Est. Birth Year | ~1925 |
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 Margaret | Age | Birth yr |
|---|---|---|---|---|
| Margaret Kennedy | Daughter | — | 15 | ~1925 |
| Catherine Kennedy | Daughter | — | 28 | ~1912 |
| Eleanor Kennedy | Daughter | — | 19 | ~1921 |
| Mary Kennedy | Daughter | — | 29 | ~1911 |
| Jane Kennedy | Daughter | — | 21 | ~1919 |
| Patrick Kennedy | Head | — | 60 | ~1880 |
| Edward Kennedy | Son | — | 12 | ~1928 |
| Matthew Kennedy | Son | — | 21 | ~1919 |
| James Kennedy | Son | — | 7 | ~1933 |
| Jack Kennedy | Son | — | 18 | ~1922 |
| Katherine Kennedy | Spouse | — | 53 | ~1887 |
Census Appearances
1930
Allegheny, Pennsylvania
Daughter, age 5
Allegheny, Pennsylvania · implied b. ~1925 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kennedy |
| Given Name | Margaret |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Daughter, age 15
Allegheny-County, Pennsylvania · implied b. ~1925 — 11 household members
| Surname | Kennedy |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Swissvale |
| 1935 Residence (County) | Allegheny |
| Highest Grade | H-1 |
| 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 Margaret Kennedy across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Margaret Kennedy
Daughter · 1940 · age 15 · b. ~1925 · Pennsylvania
★ You are viewing this record
Sibling
Catherine Kennedy
Sibling · 1940 · age 28
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eleanor Kennedy
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jane Kennedy
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Kennedy
Sibling · 1940 · age 29
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Kennedy
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jack Kennedy
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Matthew Kennedy
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Kennedy
Sibling · 1940 · age 12
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-t0627-03418-00810)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Charles A Wedge | 48 | Head | Foreman | Pennsylvania |
| 42 | Eleanor Wedge | 44 | Wife | — | Pennsylvania |
| 43 | Charles A Wedge | 20 | Son | — | Pennsylvania |
| 44 | Rose Wedge | 13 | Daughter | — | Pennsylvania |
| 45 | Dorothy Wedge | 9 | Daughter | — | Pennsylvania |
| 46 | Patrick Ryan | 54 | Head | Carpenter | Eire |
| 47 | Margaret Ryan | 50 | Wife | Carpenter | Eire |
| 48 | Mary Ryan | 27 | Daughter | — | Pennsylvania |
| 49 | Edward Ryan | 29 | Son | Clerk | Pennsylvania |
| 50 | John Ryan | 27 | Son | Electric Welder | Pennsylvania |
| 51 | Thomas Ryan | 26 | Son | Bookkeeper | Pennsylvania |
| 52 | Patrick Kennedy | 60 | Head | Operator | Eire |
| 53 | Katherine Kennedy | 53 | Wife | — | Eire |
| 54 | Mary Kennedy | 29 | Daughter | Stenographer | Pennsylvania |
| 55 | Catherine Kennedy | 28 | Daughter | Recording Clerk | Pennsylvania |
| 56 | Jane Kennedy | 21 | Daughter | Stenographer | Pennsylvania |
| 57 | Matthew Kennedy | 21 | Son | Machine Hand | Pennsylvania |
| 58 | Eleanor Kennedy | 19 | Daughter | Shop Work | Pennsylvania |
| 59 | Jack Kennedy | 18 | Son | — | Pennsylvania |
| 60 | Margaret Kennedy THIS PERSON | 15 | Daughter | — | Pennsylvania |
| 61 | Edward Kennedy | 12 | Son | — | Pennsylvania |
| 62 | James Kennedy | 7 | Son | — | Pennsylvania |
| 63 | Walter Isenberg | 55 | Head | Foreman | Pennsylvania |
| 64 | Gertie Isenberg | 56 | Wife | — | Pennsylvania |
| 65 | Robert Isenberg | 20 | Son | Clerk | Pennsylvania |
| 66 | Cosmo John | 48 | Head | Proprietor | Pennsylvania |
| 67 | Margaret John | 15 | Daughter | Cashier | Pennsylvania |
| 68 | Abigail Jean John | 14 | Daughter | — | Pennsylvania |
| 69 | Betty Ann John | 12 | Daughter | — | Pennsylvania |
| 70 | Kenneth Schm | 23 | Son | Machine Hand | Pennsylvania |
| 71 | Ruth Schm | 21 | Daughter | — | Pennsylvania |
| 72 | Joseph Hlinka | 52 | Head | Machinist | Hungary |
| 73 | Emma Hlinka | 40 | Wife | — | Hungary |
| 74 | Margaret Hlinka | 20 | Daughter | Beauty Parlor | Pennsylvania |
| 75 | Donald Hlinka | 18 | Son | — | Pennsylvania |
| 76 | Joseph Hlinka | 15 | Son | — | Pennsylvania |
| 77 | Michael Alan | 62 | Head | Stationary Engineer | Eire |
| 78 | Marie Alan | 45 | Wife | — | Eire |
| 79 | John Alan | 27 | Son | Clerk | Pennsylvania |
| 80 | Madeline Alan | 19 | Daughter | — | 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)