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Margaret Wallace — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this Margaret Wallace across the 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a daughter (b.~1919), then head of a 10-person household.
Age 21
b. ~1919
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Wallace |
| Given Name | Margaret M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Occupation | salesgirl |
| Industry | dept store |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 810 |
| Highest Grade | H-4 |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Salesgirl |
| Township / Ward | Boston City |
| Est. Birth Year | ~1919 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Dorothy Wallace | Daughter | — | 10 | ~1930 |
| Jeremiah Wallace | Son | — | 19 | ~1921 |
| Margaret Wallace | Daughter | — | 21 | ~1919 |
| John Wallace | Son | — | 9 | ~1931 |
| Julia Wallace | Daughter | — | 23 | ~1917 |
| Hannah Wallace | Spouse | — | 46 | ~1894 |
| Anna Wallace | Daughter | — | 15 | ~1925 |
| Jeremiah Wallace | Head | — | 48 | ~1892 |
| James Wallace | Son | — | 17 | ~1923 |
| Robert Wallace | Son | — | 6 | ~1934 |
Census Appearances
1930
Suffolk, Massachusetts
Daughter, age 11
Suffolk, Massachusetts · implied b. ~1919 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Wallace |
| Given Name | Margaret M |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Daughter, age 21
Suffolk-County, Massachusetts · implied b. ~1919 — 10 household members
| Surname | Wallace |
| Given Name | Margaret M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (County) | Suffolk |
| Occupation | salesgirl |
| Industry | dept store |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 810 |
| Highest Grade | H-4 |
| 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 Margaret Wallace across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Margaret Wallace
Daughter · 1940 · age 21 · b. ~1919 · Massachusetts
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Sibling
Anna Wallace
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Wallace
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Wallace
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Wallace
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Julia Wallace
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Wallace
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jeremiah Wallace
Sibling · 1940 · age 19
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 — Suffolk-County, Massachusetts
Open full size
1940 US Federal Census — Suffolk-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01659-00663)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ella Barry | 68 | Sister | — | Ireland |
| 2 | William Harrington | 5 | Nephew | — | Massachusetts |
| 3 | Arthur B. Beatty | 38 | Head | Salesman | Massachusetts |
| 4 | Margaret E. Beatty | 40 | Wife | — | Massachusetts |
| 5 | Margaret Beatty | 9 | Daughter | — | Massachusetts |
| 6 | Arthur Beatty | 5 | Son | — | Massachusetts |
| 7 | Anne Beatty | 2 | Daughter | — | Massachusetts |
| 8 | Jeremiah Wallace | 48 | Head | Waterfront | Ireland |
| 9 | Hannah Wallace | 46 | Wife | — | Ireland |
| 10 | Julia M. Wallace | 23 | Daughter | Private Typist | Massachusetts |
| 11 | Margaret M. Wallace THIS PERSON | 21 | Daughter | Salesgirl | Massachusetts |
| 12 | Jeremiah J. Wallace | 19 | Son | Longshoreman | Massachusetts |
| 13 | James E. Wallace | 17 | Son | — | Massachusetts |
| 14 | Anna Wallace | 15 | Daughter | — | Massachusetts |
| 15 | Dorothy G. Wallace | 10 | Daughter | — | Massachusetts |
| 16 | John R. Wallace | 9 | Son | — | Massachusetts |
| 17 | Robert F. Wallace | 6 | Son | — | Massachusetts |
| 18 | Edward Robinson | 75 | Head | — | Massachusetts |
| 19 | James A. Robinson | 41 | Son | Laborer | Massachusetts |
| 20 | Catherine Donachy | 31 | Daughter | Housekeeper | Massachusetts |
| 21 | Catherine Mclaughlin | 62 | Sister | — | Massachusetts |
| 22 | Robert E. Sullivan | 29 | Head | Sailor | Virginia |
| 23 | Mary A. Sullivan | 29 | Wife | — | Massachusetts |
| 24 | Mary Sullivan | 1 | Daughter | — | Massachusetts |
| 25 | Daniel Mcconnell | 79 | Head | — | Ireland |
| 26 | Mary L. Mcconnell | 65 | Wife | — | Ireland |
| 27 | John D. Mcconnell | 51 | Son | Longshoreman | Massachusetts |
| 28 | Morris J. Mcconnell | 35 | Son | Longshoreman | Massachusetts |
| 29 | Francis Mcconnell | 30 | Son | Key Worker | Massachusetts |
| 30 | Mary E. Matthews | 53 | Head | File Clerk | Massachusetts |
| 31 | Mary D. Miles | 46 | Cousin | 0 | Massachusetts |
| 32 | Robert Mccormick | 29 | Head | Electrician Helper | Massachusetts |
| 33 | Margaret Mccormick | 27 | Wife | — | Massachusetts |
| 34 | Robert Mccormick | 8 | Son | — | Massachusetts |
| 35 | Arthur Mccormick | 6 | Son | — | Massachusetts |
| 36 | Dorothy Mccormick | 5 | Daughter | — | Massachusetts |
| 37 | Paul Mccormick | 4 | Son | — | Massachusetts |
| 38 | Donald Mccormick | 3 | Son | — | Massachusetts |
| 39 | James Mccormick | 1 | Son | — | Massachusetts |
| 40 | Michael Leary | 35 | Head | Waterfront | 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)