JW
James Whalen — 1940 US Census Record
Model Tree available1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this James Whalen across the 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed), with identified parents James & Martin — first a head (b.~1912), then head of a 5-person household.
Age 28
b. ~1912
Male
Head
Born: Massachusetts
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 | 28 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Lawrence |
| Additional Details | |
| Occupation | Truck Driver |
| Industry | Retail Fuel Oil |
| Class of Worker | PW |
| Hours Worked | 10 |
| Income (1939) | 586 |
| Highest Grade | No 7 |
| 1935 Residence | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Truck Driver |
| Township / Ward | City Of Lowell |
| Est. Birth Year | ~1912 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Madeline Whalen | Spouse | — | 27 | ~1913 |
| James Whalen | Son | — | 1 | ~1939 |
| Madeline Whalen | Daughter | — | 3 | ~1937 |
| James Whalen | Head | — | 28 | ~1912 |
| Dolores Whalen | Daughter | — | 3 | ~1937 |
Census Appearances
1920
Suffolk, Massachusetts
Son, age 7
Suffolk, Massachusetts · implied b. ~1913 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Whalen |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | England |
| Mother's Birthplace | Ireland |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Suffolk, Massachusetts
Son, age 18
Suffolk, Massachusetts · implied b. ~1912 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Whelan |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | England |
| Mother's Birthplace | Northern Ireland |
| Occupation | Chauffeur |
| Industry | Garage |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Head, age 28
Middlesex-County, Massachusetts · implied b. ~1912 — 5 household members
| Surname | Whalen |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Lawrence |
| Occupation | Truck Driver |
| Industry | Retail Fuel Oil |
| Class of Worker | PW |
| Hours Worked | 10 |
| Income (1939) | 586 |
| Highest Grade | No 7 |
| 1935 Residence | Massachusetts |
| 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 James Whalen across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father James Whalen (~0.92 confidence) and father Martin Whelan (~0.92 confidence) and mother Mary Whelan (~0.92 confidence) and mother Mary Whalen (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Whalen
b. ~1881
Source father
● Household
· direct · ~0.92
Father
Martin Whelan
b. ~1871
Source father
● Household
· direct · ~0.92
Mother
Mary Whelan
b. ~1878
Source mother
● Household
· direct · ~0.92
Mother
Mary Whalen
b. ~1889
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Whalen
Head · 1940 · age 28 · b. ~1912 · 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 — 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-t0627-01692-00297)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | David Souza | 0 | Son | — | Massachusetts |
| 2 | Jennie Sharkey | 40 | Head | — | Massachusetts |
| 3 | Winnifred Sharkey | 17 | Daughter | — | Massachusetts |
| 4 | Mary Sharkey | 16 | Daughter | — | Massachusetts |
| 5 | Dorothy Cox | 23 | Head | — | Maine |
| 6 | Merton Cox | 3 | Son | — | Massachusetts |
| 7 | Carl Cox | 3 | Son | — | Massachusetts |
| 8 | Frank Scott | 31 | Head | Salesman | Canada |
| 9 | Elsie Scott | 33 | Wife | — | Massachusetts |
| 10 | Arline Scott | 6 | Daughter | — | Massachusetts |
| 11 | Elizabeth Eber | 53 | Head | — | Illinois |
| 12 | Lawson W. Allaby | 44 | Head | Sawyer | Canada |
| 13 | Rebecca D. Allaby | 49 | Wife | — | Canada |
| 14 | Frank L. Allaby | 20 | Son | Truck Driver | Canada |
| 15 | Norman G. Allaby | 19 | Son | Sign Painter | Canada |
| 16 | Raymond H. Allaby | 16 | Son | — | Massachusetts |
| 17 | Lillian D. Allaby | 14 | Daughter | — | Massachusetts |
| 18 | Alfred H. Allaby | 11 | Son | — | Massachusetts |
| 19 | Douglas B. Allaby | 5 | Son | — | Massachusetts |
| 20 | Dorothy B. Allaby | 5 | Daughter | — | Massachusetts |
| 21 | James Whalen THIS PERSON | 28 | Head | Truck Driver | Massachusetts |
| 22 | Madeline Whalen | 27 | Wife | — | Massachusetts |
| 23 | Madeline F. Whalen | 3 | Daughter | — | Massachusetts |
| 24 | Dolores L. Whalen | 3 | Daughter | — | Massachusetts |
| 25 | James Whalen | 1 | Son | — | Massachusetts |
| 26 | Colin Wilson | 30 | Head | Laborer | Massachusetts |
| 27 | Rita Wilson | 20 | Wife | — | Massachusetts |
| 28 | Brenda Wilson | 2 | Daughter | — | Massachusetts |
| 29 | Ann Furey | 18 | Sister-in-law | — | Massachusetts |
| 30 | Patrick Lynch | 36 | Head | Stationary Engineer | Massachusetts |
| 31 | Mary E. Lynch | 34 | Wife | — | Massachusetts |
| 32 | Dorothy A. Lynch | 13 | Daughter | — | Massachusetts |
| 33 | Mildred E. Lynch | 11 | Daughter | — | Massachusetts |
| 34 | Donald E. Lynch | 9 | Son | — | Massachusetts |
| 35 | James P. Lynch | 8 | Son | — | Massachusetts |
| 36 | John A. Mansfield | 29 | Head | Brakeman | Massachusetts |
| 37 | Esther P. Mansfield | 29 | Wife | — | Massachusetts |
| 38 | James A. Mansfield | 7 | Son | — | Massachusetts |
| 39 | John H. Mansfield | 5 | Son | — | Massachusetts |
| 40 | Ronald P. Mansfield | 3 | Son | — | Massachusetts |
Pedigree Summary
James
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
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)