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Helen Mcdonald — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Philadelphia-County, Pennsylvania
Our Model Tree links this Helen Mcdonald across the 1930 and 1940 US Censuses in Philadelphia-County, Pennsylvania (XGBoost, ~Confirmed) — first a daughter (b.~1930), then head of a 15-person household.
Age 10
b. ~1930
Female
Daughter
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Philadelphia-County, Pennsylvania |
| Surname | McDonald |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Philadelphia |
| 1935 Residence (County) | Philadelphia |
| Additional Details | |
| Highest Grade | No 3 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Philadelphia |
| Est. Birth Year | ~1930 |
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.
15 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Helen | Age | Birth yr |
|---|---|---|---|---|
| Kathleen Mcdonald | Daughter | — | 12 | ~1928 |
| Marie Mcdonald | Daughter | — | 16 | ~1924 |
| James Mcdonald | Son | — | 20 | ~1920 |
| Laura Mcdonald | Daughter | — | 15 | ~1925 |
| Dorothy Mcdonald | Daughter | — | 28 | ~1912 |
| Arthur Mcdonald | Son | — | 18 | ~1922 |
| Walter Mcdonald | Son | — | 23 | ~1917 |
| William Mcdonald | Son | — | 22 | ~1918 |
| John Mcdonald | Head | — | 57 | ~1883 |
| Gertrude Mcdonald | Daughter | — | 14 | ~1926 |
| Anna Mcdonald | Daughter | — | 25 | ~1915 |
| Helen Mcdonald | Daughter | — | 10 | ~1930 |
| Katherine Mcdonald | Spouse | — | 54 | ~1886 |
| Janice Mcdonald | Daughter | — | 5 | ~1935 |
| John Mcdonald | Son | — | 26 | ~1914 |
Census Appearances
1930
Philadelphia, Pennsylvania
Daughter, age
Philadelphia, Pennsylvania · implied b. ~1930 — 50 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McDonald |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Can Read/Write | No |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Philadelphia-County, Pennsylvania
Daughter, age 10
Philadelphia-County, Pennsylvania · implied b. ~1930 — 15 household members
| Surname | McDonald |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Philadelphia |
| 1935 Residence (County) | Philadelphia |
| Highest Grade | No 3 |
| 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 Helen Mcdonald across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Helen Mcdonald
Daughter · 1940 · age 10 · b. ~1930 · Pennsylvania
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Sibling
Walter Mcdonald
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Laura Mcdonald
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Mcdonald
Sibling · 1940 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Mcdonald
Sibling · 1940 · age 28
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Janice Mcdonald
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marie Mcdonald
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Mcdonald
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anna Mcdonald
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Arthur Mcdonald
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Mcdonald
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Kathleen Mcdonald
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gertrude Mcdonald
Sibling · 1940 · age 14
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
39 people indexed on this census page (nara:1940:m-t0627-03729-00542)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John Henice | 13 | Step-son | — | Pennsylvania |
| 2 | Frank Prayer | 46 | Head | Laborer | South Carolina |
| 3 | Allie Prayer | 46 | Wife | — | South Carolina |
| 4 | Ida Rawls | 42 | Lodger | Maid | South Carolina |
| 5 | Henry Rawls | 19 | Lodger | Dishwasher | Pennsylvania |
| 6 | Charles Rawls | 17 | Lodger | New Worker | Pennsylvania |
| 7 | Wilhamina Rawls | 15 | Lodger | — | Pennsylvania |
| 9 | William Johnson | 36 | Head | Laborer | Louisiana |
| 10 | Virginia Johnson | 23 | Wife | — | Virginia |
| 11 | Beatrice Johnson | 5 | Daughter | — | Pennsylvania |
| 12 | Elizabeth Johnson | 4 | Daughter | — | Pennsylvania |
| 13 | Eva Pearl Johnson | 3 | Daughter | — | Pennsylvania |
| 14 | Richard Upshur | 58 | Head | — | Virginia |
| 15 | Maggie Upshur | 41 | Wife | — | Virginia |
| 16 | Richard Davis | 32 | Head | — | South Carolina |
| 17 | Madeline Davis | 35 | Wife | — | Pennsylvania |
| 18 | James Overhalty | 76 | Head | — | Virginia |
| 19 | Delia Overhalty | 73 | Wife | — | Irish Free State |
| 20 | John Cunney | 50 | Head | — | Pennsylvania |
| 21 | Bella Mcclafferty | 50 | Head | Proprietor | Pennsylvania |
| 22 | Patrick Mcclafferty | 42 | Brother | Laborer | Pennsylvania |
| 23 | John J. Mcdonald | 57 | Head | Proprietor | Pennsylvania |
| 24 | Katherine Mcdonald | 54 | Wife | — | Pennsylvania |
| 25 | Dorothy Mcdonald | 28 | Daughter | Clerk | Pennsylvania |
| 26 | John Mcdonald | 26 | Son | Chauffeur | Pennsylvania |
| 27 | Anna Mcdonald | 25 | Daughter | Stenographer | Pennsylvania |
| 28 | Walter Mcdonald | 23 | Son | New Worker | Pennsylvania |
| 29 | William Mcdonald | 22 | Son | Chauffeur | Pennsylvania |
| 30 | James Mcdonald | 20 | Son | — | Pennsylvania |
| 31 | Arthur Mcdonald | 18 | Son | Delivery Boy | Pennsylvania |
| 32 | Marie Mcdonald | 16 | Daughter | — | Pennsylvania |
| 33 | Laura Mcdonald | 15 | Daughter | — | Pennsylvania |
| 34 | Gertrude Mcdonald | 14 | Daughter | — | Pennsylvania |
| 35 | Kathleen Mcdonald | 12 | Daughter | — | Pennsylvania |
| 36 | Helen Mcdonald THIS PERSON | 10 | Daughter | — | Pennsylvania |
| 37 | Janice Mcdonald | 5 | Daughter | — | Pennsylvania |
| 38 | Carlie Herbert | 46 | Head | Stripper | Georgia |
| 39 | Nancy B. Thompson | 42 | Sister | Operator | Georgia |
| 40 | Henrietta Thompson | 14 | Nephew | — | 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)