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Helen Mcdonald — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Worcester-County, Massachusetts
Our Model Tree links this Helen Mcdonald across the 1930 and 1940 US Censuses in Worcester-County, Massachusetts (XGBoost, ~Confirmed) — first a daughter (b.~1928), then head of a 9-person household.
Age 12
b. ~1928
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Worcester-County, Massachusetts |
| Surname | McDonald |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Worcester |
| 1935 Residence (County) | Worcester |
| Additional Details | |
| Highest Grade | No 5 |
| 1935 Residence | Mass |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Worcester City |
| Est. Birth Year | ~1928 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Helen | Age | Birth yr |
|---|---|---|---|---|
| Helen Mcdonald | Daughter | — | 12 | ~1928 |
| Elizabeth Mcdonald | Daughter | — | 19 | ~1921 |
| Charles Mcdonald | Head | — | 45 | ~1895 |
| Mary Mcdonald | Daughter | — | 6 | ~1934 |
| Timothy Hurley | Other | — | 62 | ~1878 |
| Ina Mcdonald | Daughter | — | 15 | ~1925 |
| Mary Mcdonald | Spouse | — | 40 | ~1900 |
| Charles Mcdonald | Son | — | 17 | ~1923 |
| John Mcdonald | Son | — | 12 | ~1928 |
Census Appearances
1930
Worcester, Massachusetts
Daughter, age 2
Worcester, Massachusetts · implied b. ~1928 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mc Donald |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Worcester-County, Massachusetts
Daughter, age 12
Worcester-County, Massachusetts · implied b. ~1928 — 9 household members
| Surname | McDonald |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Worcester |
| 1935 Residence (County) | Worcester |
| Highest Grade | No 5 |
| 1935 Residence | Mass |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
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 12 · b. ~1928 · Massachusetts
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Sibling
Mary Mcdonald
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elizabeth Mcdonald
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Mcdonald
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ina Mcdonald
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Mcdonald
Sibling · 1940 · age 17
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 — Worcester-County, Massachusetts
Open full size
1940 US Federal Census — Worcester-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01718-00256)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | George Rivera | 66 | Head | Finisher | Massachusetts |
| 2 | Agnes Rivera | 56 | Wife | Housekeeper | Massachusetts |
| 3 | Vincent Rivera | 36 | Son | Weaver | Massachusetts |
| 4 | Florence Rivera | 27 | Daughter | Waitress | Massachusetts |
| 5 | Francis Rivera | 18 | Son | — | Massachusetts |
| 6 | Charles Mcdonald | 45 | Head | Baker | Massachusetts |
| 7 | Mary Mcdonald | 40 | Wife | — | Massachusetts |
| 8 | Elizabeth Mcdonald | 19 | Daughter | — | Massachusetts |
| 9 | Charles Jr. Mcdonald | 17 | Son | — | Massachusetts |
| 10 | Ina Mcdonald | 15 | Daughter | — | Massachusetts |
| 11 | John Mcdonald | 12 | Son | — | Massachusetts |
| 12 | Helen Mcdonald THIS PERSON | 12 | Daughter | — | Massachusetts |
| 13 | Mary Mcdonald | 6 | Daughter | — | Massachusetts |
| 14 | Timothy Hurley | 62 | Lodger | — | Irish Free State |
| 15 | Ellen Fuller | 50 | Head | — | Massachusetts |
| 16 | Leonetta Fuller | 27 | Daughter | Inspector | Massachusetts |
| 17 | Arthur Fuller | 20 | Son | Truck Driver | Massachusetts |
| 18 | Horace Mcleod | 62 | Head | Manager | Canada-English |
| 19 | Clare Mcleod | 54 | Wife | — | Vermont |
| 20 | Edmund Mcleod | 29 | Son | Painter | Massachusetts |
| 21 | Louise Mcleod | 18 | Daughter | — | Massachusetts |
| 22 | Margaret Deirax | 44 | Head | Teacher | Massachusetts |
| 23 | Harry Gardner | 68 | Head | Wire Worker | Massachusetts |
| 24 | Inez Gardner | 68 | Wife | — | Massachusetts |
| 25 | Elizabeth Davis | 50 | Housekeeper | Housekeeper | Massachusetts |
| 26 | John J. Martin | 57 | Head | Machinist | Massachusetts |
| 27 | Ambie Martin | 56 | Wife | — | Canada-English |
| 28 | John G. Martin | 24 | Son | Accountant | Massachusetts |
| 29 | William G. Martin | 20 | Daughter | — | Massachusetts |
| 30 | Arthur Labeau | 30 | Head | Salesman | Massachusetts |
| 31 | Lora Labeau | 30 | Wife | Machinist | Massachusetts |
| 32 | Janet Labeau | 4 | Daughter | — | Massachusetts |
| 33 | Ann Rogers | 58 | Head | — | North Ireland |
| 34 | James H. Rogers | 29 | Son | Draftsman | Massachusetts |
| 35 | Catherine Rogers | 27 | Daughter | Teacher | Massachusetts |
| 36 | Joseph Conlon | 40 | Head | Shipper | North Ireland |
| 37 | Anna Conlon | 41 | Wife | — | Massachusetts |
| 38 | Joseph Jr. Conlon | 7 | Son | — | Massachusetts |
| 39 | Mary Conlon | 6 | Daughter | — | Massachusetts |
| 40 | Margaret Conlon | 70 | Mother in law | — | North Ireland |
Related Census Records
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)