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James Whalen — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this James Whalen across the 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1878), then head of a 6-person household.
Age 62
b. ~1878
Male
Head
Born: Canada English
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Whalen |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 62 |
| Marital Status | Married |
| Birthplace | Canada English |
| 1935 Residence (City) | Medford City |
| 1935 Residence (County) | Middlesex |
| Naturalization Status | First papers filed |
| Additional Details | |
| Occupation | Janitor |
| Industry | municipal garage |
| Class of Worker | GW |
| Hours Worked | 20 |
| Income (1939) | 958 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth Country | Canada |
| Birthplace (normalized) | canada english |
| Occupation | Janitor |
| Township / Ward | Medford City |
| Est. Birth Year | ~1878 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| James Whalen | Head | — | 62 | ~1878 |
| Barbara Whalen | Daughter | — | 10 | ~1930 |
| Claire Whalen | Daughter | — | 12 | ~1928 |
| Pearl Whalen | Daughter | — | 13 | ~1927 |
| Patricia Whalen | Daughter | — | 8 | ~1932 |
| Charlotte Whalen | Spouse | — | 46 | ~1894 |
Census Appearances
1930
Middlesex, Massachusetts
Other, age 55
Middlesex, Massachusetts · implied b. ~1875 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Whalen |
| Given Name | James |
| Relationship to Head | Brother |
| Sex | M |
| Color / Race | White |
| Age | 55 |
| Marital Status | Single |
| Birthplace | Canada English |
| Naturalization Status | Naturalized |
| Year of Immigration | 1890 |
| Father's Birthplace | Ireland English |
| Mother's Birthplace | Canada English |
| Occupation | Laborer |
| Industry | Road Construction |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | Canada |
| Birthplace (normalized) | canada english |
1940
Middlesex-County, Massachusetts
Head, age 62
Middlesex-County, Massachusetts · implied b. ~1878 — 6 household members
| Surname | Whalen |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 62 |
| Marital Status | Married |
| Birthplace | Canada English |
| 1935 Residence (City) | Medford City |
| 1935 Residence (County) | Middlesex |
| Naturalization Status | First papers filed |
| Occupation | Janitor |
| Industry | municipal garage |
| Class of Worker | GW |
| Hours Worked | 20 |
| Income (1939) | 958 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth Country | Canada |
| Birthplace (normalized) | canada english |
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 James Whalen across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
James Whalen
Head · 1940 · age 62 · b. ~1878 · 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-t0627-01611-00229)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Charlotte A Young | 21 | Daughter | Operator | Massachusetts |
| 42 | Lois E Young | 18 | Daughter | Cutter | Massachusetts |
| 43 | Arthur D Young | 16 | Son | — | Massachusetts |
| 44 | Earl E. Macklin | 29 | Head | Clerk | Massachusetts |
| 45 | Marie H. Macklin | 45 | Wife | — | Massachusetts |
| 46 | Robert C. Macklin | 3 | Son | — | Massachusetts |
| 47 | Edmond S. Wilson | 64 | Head | Repairman | Massachusetts |
| 48 | Mary F. Wilson | 29 | Daughter | Stenographer | Massachusetts |
| 49 | — | None | — | — | — |
| 50 | Herbert H. Vincent | 39 | Head | Chauffeur | Indiana |
| 51 | Alice Vincent | 41 | Wife | — | Massachusetts |
| 52 | Norma J. Vincent | 16 | Daughter | Sew Worker | Massachusetts |
| 53 | Lois D. Vincent | 8 | Daughter | — | New Jersey |
| 54 | Marilyn J. Vincent | 5 | Daughter | — | Massachusetts |
| 55 | Joseph P. Power | 60 | Head | — | Newfoundland |
| 56 | Rita A. Power | 21 | Daughter | — | Massachusetts |
| 57 | Joseph M. Power | 20 | Son | Truck Driver | Massachusetts |
| 58 | James Whalen THIS PERSON | 62 | Head | Janitor | Canada English |
| 59 | Charlotte M. Whalen | 46 | Wife | — | Canada English |
| 60 | Pearl A. Whalen | 13 | Daughter | — | Massachusetts |
| 61 | Claire S. Whalen | 12 | Daughter | — | Massachusetts |
| 62 | Barbara C. Whalen | 10 | Daughter | — | Massachusetts |
| 63 | Patricia A. Whalen | 8 | Daughter | — | Massachusetts |
| 64 | Arthur H. Mairs | 57 | Head | Laborer | Canada English |
| 65 | Margaret Mairs | 48 | Wife | — | Canada English |
| 66 | Annette J. Mairs | 24 | Daughter | Bookkeeper | Massachusetts |
| 67 | Peter H. Mairs | 17 | Son | — | Massachusetts |
| 68 | Robert L. Mairs | 15 | Son | — | Massachusetts |
| 69 | Edward R. Mairs | 12 | Son | — | Massachusetts |
| 70 | Ira A. Frick | 57 | Head | Reporter-Painter | West Virginia |
| 71 | Carrie B. Frick | 58 | Wife | — | Canada English |
| 72 | Worth E. Frick | 20 | Son | Real Worker | Massachusetts |
| 73 | James P. Polcaro | 30 | Head | Attendant | Massachusetts |
| 74 | Eleanor Polcaro | 25 | Wife | Factory Worker | Massachusetts |
| 75 | Charles R. Lebuff | 32 | Head | Milk Hand | Massachusetts |
| 76 | Ruth V. Lebuff | 30 | Wife | — | Massachusetts |
| 77 | Charles R. Jr. Lebuff | 4 | Son | — | Massachusetts |
| 78 | Laban B. Lebuff | 1 | Son | — | Massachusetts |
| 79 | Daniel Mcauley | 45 | Head | Janitor | Northern Ireland |
| 80 | Rebecca E. Mcauley | 47 | Wife | — | Northern Ireland |
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)