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Mary Macdonald — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Mary Macdonald across the 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a spouse (b.~1901), then head of a 11-person household.
Age 39
b. ~1901
Female
Spouse
Born: Poland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Macdonald |
| Given Name | Mary A. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Poland |
| 1935 Residence (City) | North Reading Town |
| 1935 Residence (County) | Middlesex |
| Naturalization Status | Alien |
| Additional Details | |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | 7 |
| 1935 Residence | Same place |
| Birth Country | Poland |
| Birthplace (normalized) | poland |
| Township / Ward | North Reading Town |
| Est. Birth Year | ~1901 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Dorothy Macdonald | Daughter | — | 16 | ~1924 |
| Edward Livingston | Other | — | 7 | ~1933 |
| Joseph Macdonald | Son | — | 13 | ~1927 |
| William Macdonald | Son | — | 11 | ~1929 |
| Gladys Macdonald | Daughter | — | 10 | ~1930 |
| Edward Macdonald | Son | — | 14 | ~1926 |
| Helen Macdonald | Daughter | — | 17 | ~1923 |
| Marguerite Macdonald | Daughter | — | 9 | ~1931 |
| Alexander Macdonald | Head | — | 52 | ~1888 |
| Mary Macdonald | Spouse | — | 39 | ~1901 |
| Richard Macdonald | Son | — | 1 | ~1939 |
Census Appearances
1930
Middlesex, Massachusetts
Spouse, age 31
Middlesex, Massachusetts · implied b. ~1899 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | MacDonald |
| Given Name | Mary F. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Poland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1901 |
| Age at First Marriage | 17 |
| Father's Birthplace | Poland |
| Mother's Birthplace | Poland |
| Can Read/Write | Yes |
| Mother Tongue | Polish |
| Veteran | No |
| Birth Country | Poland |
| Birthplace (normalized) | poland |
1940
Middlesex-County, Massachusetts
Spouse, age 39
Middlesex-County, Massachusetts · implied b. ~1901 — 11 household members
| Surname | Macdonald |
| Given Name | Mary A. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Poland |
| 1935 Residence (City) | North Reading Town |
| 1935 Residence (County) | Middlesex |
| Naturalization Status | Alien |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | 7 |
| 1935 Residence | Same place |
| Birth Country | Poland |
| Birthplace (normalized) | poland |
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 Mary Macdonald across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Macdonald
Spouse · 1940 · age 39 · b. ~1901 · Massachusetts
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Middlesex-County, Massachusetts
Open full size
1940 US Federal Census — Middlesex-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01616-00596)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John P. Brock | 60 | Head | — | Vermont |
| 2 | Elizabeth N. Brock | 67 | Wife | — | Massachusetts |
| 3 | William Brock | 72 | Brother | — | Vermont |
| 4 | Anthony J. Bramara | 59 | Head | Plumber | Massachusetts |
| 5 | Helena G. Bramara | 54 | Wife | — | Massachusetts |
| 6 | David A. Johnson | 28 | Head | Salesman | Nebraska |
| 7 | Helen L. Johnson | 25 | Wife | — | Massachusetts |
| 8 | Darlene L. Johnson | 2 | Daughter | — | Massachusetts |
| 9 | Jennie L. Butterfield | 49 | In-law | — | Massachusetts |
| 10 | Samuel Y. Clover | 42 | Head | Paper Cutter | Eastland |
| 11 | Olive E. Clover | 40 | Wife | — | Massachusetts |
| 12 | Samuel Y. Jr. Clover | 15 | Son | — | Massachusetts |
| 13 | Barbara L. Clover | 11 | Daughter | — | Massachusetts |
| 14 | John D. Clover | 9 | Son | — | Massachusetts |
| 15 | Dorothy M. Clover | 2 | Daughter | — | Massachusetts |
| 16 | Lorena J. Morrill | 61 | Lodger | — | Illinois |
| 17 | Charles E. Morrill | 60 | Lodger | Upholsterer | Massachusetts |
| 18 | Mervin L. Chase | 42 | Head | Farmer | Connecticut |
| 19 | Michael Tarasczynski | 77 | Head | — | Poland |
| 20 | Alice Tarasczynski | 73 | Wife | — | Poland |
| 21 | Rudolph C. Linde | 37 | Head | Printer | Massachusetts |
| 22 | Marjorie L. Linde | 27 | Wife | — | Massachusetts |
| 23 | Alexander Macdonald | 52 | Head | Laborer | North Ireland |
| 24 | Mary A. Macdonald THIS PERSON | 39 | Wife | — | Poland |
| 25 | Helen A. Macdonald | 17 | Daughter | House Work | Massachusetts |
| 26 | Dorothy M. Macdonald | 16 | Daughter | — | Massachusetts |
| 27 | Edward J. Macdonald | 14 | Son | — | Massachusetts |
| 28 | Joseph D. Macdonald | 13 | Son | — | Massachusetts |
| 29 | William G. Macdonald | 11 | Son | — | Massachusetts |
| 30 | Gladys G. Macdonald | 10 | Daughter | — | Massachusetts |
| 31 | Marguerite A. Macdonald | 9 | Daughter | — | Massachusetts |
| 32 | Richard J. Macdonald | 1 | Son | — | Massachusetts |
| 33 | Edward J. Livingston | 7 | Nephew | — | Massachusetts |
| 34 | Albert M. Anderson | 19 | Head | Operator | Massachusetts |
| 35 | Everett J. Abbott | 24 | Brother-in-law | Laborer | Massachusetts |
| 36 | Caroline C. Abbott | 25 | Sister | — | Massachusetts |
| 37 | Lilley N. Orben | 44 | Head | Laborer | Massachusetts |
| 38 | Mary L. Orben | 38 | Wife | Packer | Massachusetts |
| 39 | Irene R. Orben | 18 | Daughter | Stitcher | Massachusetts |
| 40 | George L. Orben | 17 | Son | Laborer | Massachusetts |
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)