JW
James Wallace — 1940 US Census Record
Model Tree available1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this James Wallace across the 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Jasper & James — first a head (b.~1905), then head of a 4-person household.
Age 35
b. ~1905
Male
Head
Born: Massachusetts
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Wallace |
| Given Name | James F |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Malden city |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Occupation | Co-owner |
| Industry | Study service |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 1560 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Co-Owner |
| Township / Ward | Malden City |
| Est. Birth Year | ~1905 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Sarah Wallace | Daughter | — | 40 | ~1900 |
| Florence Wallace | Daughter | — | 45 | ~1895 |
| James Wallace | Head | — | 35 | ~1905 |
| Bernice Wallace | Spouse | — | 67 | ~1873 |
Census Appearances
1920
Middlesex, Massachusetts
Son, age 13
Middlesex, Massachusetts · implied b. ~1907 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Wallace |
| Given Name | James H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Maine |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Middlesex, Massachusetts
Son, age 23
Middlesex, Massachusetts · implied b. ~1907 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Wallace |
| Given Name | Jasper Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | Trucker |
| Industry | Truck |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Head, age 35
Middlesex-County, Massachusetts · implied b. ~1905 — 4 household members
| Surname | Wallace |
| Given Name | James F |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Malden city |
| 1935 Residence (County) | Middlesex |
| Occupation | Co-owner |
| Industry | Study service |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 1560 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| 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 Wallace across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Jasper Wallace (~0.92 confidence) and father James Wallace (~0.92 confidence) and mother Bessie Wallace (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Jasper Wallace
b. ~1873
Source father
● Household
· direct · ~0.92
Father
James Wallace
b. ~1880
Source father
● Household
· direct · ~0.92
Mother
Bessie Wallace
b. ~1883
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Wallace
Head · 1940 · age 35 · b. ~1905 · 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-t0627-01608-00613)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | James F Wallace THIS PERSON | 35 | Head | Co-Owner | Massachusetts |
| 42 | Bernice B Wallace | 67 | Wife | — | Maine |
| 43 | Florence B Wallace | 45 | Daughter | — | Maine |
| 44 | Sarah S Wallace | 40 | Daughter | — | Maine |
| 45 | Harry T Torney | 63 | Head | Receiving Clerk | Maine |
| 46 | Lelia C Torney | 49 | Wife | — | Massachusetts |
| 47 | Charles C Torney | 14 | Daughter | — | Massachusetts |
| 48 | Harry T Welch | 53 | Head | Counter-Man | Massachusetts |
| 49 | Mabel Welch | 48 | Wife | — | Massachusetts |
| 50 | Robert J Mcmasters | 42 | Head | Trouble Shooter | Massachusetts |
| 51 | Annie G Mcmasters | 47 | Wife | — | Massachusetts |
| 52 | Francis A Casey | 53 | Head | Salesman | Massachusetts |
| 53 | Helen T Casey | 52 | Wife | — | Massachusetts |
| 54 | Milton French | 83 | Head | — | New Hampshire |
| 55 | Aldana L French | 67 | Wife | — | Massachusetts |
| 56 | Nancy J French | 45 | Daughter | — | Massachusetts |
| 57 | Joseph T French | 45 | Son | — | Massachusetts |
| 58 | Helen A French | 25 | Daughter | — | Massachusetts |
| 59 | Guerard Smith | 15 | Lodger | — | Massachusetts |
| 60 | Walter H Marden | 46 | Head | Book Clerk | Massachusetts |
| 61 | Madeline Marden | 39 | Wife | — | Massachusetts |
| 62 | Walter H Marden | 12 | Son | — | Massachusetts |
| 63 | Ralph E Marden | 7 | Son | — | Massachusetts |
| 64 | Pris M Marden | 0 | Daughter | — | Massachusetts |
| 65 | George B Johnson | 68 | Head | Mfg. Filter | England |
| 66 | Harold E Neal | 45 | Son-in-law | Salesman | Massachusetts |
| 67 | Florence L Neal | 45 | Daughter | — | Massachusetts |
| 68 | Richard Robin | 38 | Head | Salesman | Massachusetts |
| 69 | Gertrude Robin | 38 | Wife | — | Massachusetts |
| 70 | Nellie Robin | 15 | Daughter | — | Massachusetts |
| 71 | Here Ends Block 52 And Begins Block 53 Robin | None | — | — | — |
| 72 | Newton F Stanley | 25 | Head | Chemist | Maine |
| 73 | Nancy S Stanley | 24 | Wife | — | Massachusetts |
| 74 | Jan D Stanley | 3 | Son | — | Massachusetts |
| 75 | Alfred F Barton | 62 | Head | Insurance Agent | Maine |
| 76 | Mabel B Barton | 62 | Wife | — | Massachusetts |
| 77 | Oriel P Barton | 33 | Son | Clerk | Massachusetts |
| 78 | Sumner A Barton | 22 | Son | Clerk-Billing | Massachusetts |
| 79 | Andrew V Murphy | 23 | Nephew | Clerk | Massachusetts |
| 80 | Winfield D Hamilton | 75 | Head | — | Massachusetts |
Pedigree Summary
James
Gen 1 · 3 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)