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Mary Mclean — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Worcester-County, Massachusetts
Our Model Tree links this Mary Mclean across the 1920, 1930 and 1940 US Censuses in Worcester-County, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1872), then head of a 2-person household.
Age 68
b. ~1872
Female
Head
Born: Scotland
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Worcester-County, Massachusetts |
| Surname | McLean |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 68 |
| Marital Status | Widowed |
| Birthplace | Scotland |
| 1935 Residence (City) | Fitchburg |
| 1935 Residence (County) | Worcester |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Housework |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
| Occupation | Housework |
| Township / Ward | Fitchburg |
| Est. Birth Year | ~1872 |
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.
2 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Doris Mclean | Daughter | — | 36 | ~1904 |
| Mary Mclean | Head | — | 68 | ~1872 |
Census Appearances
1920
Worcester, Massachusetts
Spouse, age 45
Worcester, Massachusetts · implied b. ~1875 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McLean |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Scotland |
| Year of Immigration | 1907 |
| Naturalization Status | Alien |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1930
Worcester, Massachusetts
Spouse, age 57
Worcester, Massachusetts · implied b. ~1873 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McClean |
| Given Name | Mary E |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | Scotland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1909 |
| Age at First Marriage | 30 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | none |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1940
Worcester-County, Massachusetts
Head, age 68
Worcester-County, Massachusetts · implied b. ~1872 — 2 household members
| Surname | McLean |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 68 |
| Marital Status | Widowed |
| Birthplace | Scotland |
| 1935 Residence (City) | Fitchburg |
| 1935 Residence (County) | Worcester |
| Naturalization Status | Naturalized |
| Occupation | Housework |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
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 Mclean across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Mclean
Head · 1940 · age 68 · b. ~1872 · Massachusetts
★ You are viewing this record
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-t0627-01648-00069)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Richard Eliot | 30 | Lodger | Salesman | Massachusetts |
| 42 | William Massey | 60 | Lodger | Inspector | Connecticut |
| 43 | James Sharp | 42 | Head | Labourer | Scotland |
| 44 | Grace M. Sharp | 39 | Wife | Housework | Massachusetts |
| 45 | Barbara Sharp | 18 | Daughter | — | Massachusetts |
| 46 | James Jr. Sharp | 3 | Son | — | Massachusetts |
| 47 | Charles Butterfield | 81 | Father-in-law | — | New Hampshire |
| 48 | Daniel Mclean | 30 | Head | Teller | Massachusetts |
| 49 | Georgiana Mclean | 33 | Wife | Housework | Scotland |
| 50 | Vesta Brown | 61 | Head | Housework | New York |
| 51 | Helen M. Brown | 24 | Daughter | Teacher | Vermont |
| 52 | Jessie Brown | 30 | Daughter | Nurse | New York |
| 53 | Richard L. Brown | 26 | Son | Chemist | Pennsylvania |
| 54 | Walter Oxford | 67 | Lodger | Caretaker | Massachusetts |
| 55 | Alfred Garner | 70 | Head | Blacksmith | England |
| 56 | Elizabeth Garner | 66 | Wife | Housework | England |
| 57 | Mary Mclean THIS PERSON | 68 | Head | Housework | Scotland |
| 58 | Doris Mclean | 36 | Daughter | Treasurer | Scotland |
| 59 | Dolar Santerre | 59 | Head | Upholsterer | New Hampshire |
| 60 | Georgiana Santerre | 52 | Daughter | Housework | Canada French |
| 61 | Beatrice Santerre | 23 | Daughter | Clerk | Massachusetts |
| 62 | Florine Santerre | 17 | Daughter | — | Massachusetts |
| 63 | Albur Wood | 67 | Head | Housework | Massachusetts |
| 64 | John Kean | 80 | Head | — | Canada English |
| 65 | Adelaide Kean | 68 | Wife | Housework | New Hampshire |
| 66 | Robert Grieve | 67 | Head | Fireman | Massachusetts |
| 67 | Mary G. Grieve | 56 | Niece | Housework | Massachusetts |
| 68 | Charles W. Moffat | 33 | Head | Compositor | New Hampshire |
| 69 | Gertrude Moffat | 34 | Wife | Housework | New Hampshire |
| 70 | Eileen Moffat | 7 | Daughter | — | Massachusetts |
| 71 | Leukina Moffat | 1 | Daughter | — | Massachusetts |
| 72 | Mary Loquist | 78 | Head | Housework | Sweden |
| 73 | George J. Potter | 33 | Head | Laborer | Massachusetts |
| 74 | Guerella Potter | 46 | Wife | — | Massachusetts |
| 75 | Delrose Potter | 16 | Son | — | Massachusetts |
| 76 | George Jr. Potter | 13 | Son | — | Massachusetts |
| 77 | Ronald Potter | 11 | Son | — | Massachusetts |
| 78 | Therese Potter | 9 | Daughter | — | Massachusetts |
| 79 | Renis Potter | 7 | Son | — | Massachusetts |
| 80 | William Clark | 58 | Head | Fireman | 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)