JL
Joseph Lambert — 1940 US Census Record
Model Tree available1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Joseph Lambert across the 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Omer & Eva — first a head (b.~1902), then head of a 4-person household.
Age 38
b. ~1902
Male
Head
Born: Massachusetts
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Lambert |
| Given Name | Joseph H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Somerville City |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Occupation | Painter |
| Industry | own business |
| Class of Worker | OA |
| Hours Worked | 48 |
| Income (1939) | 0 |
| Highest Grade | G 8 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Painter |
| Township / Ward | Somerville City |
| Est. Birth Year | ~1902 |
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 Joseph | Age | Birth yr |
|---|---|---|---|---|
| Gertrude Lambert | Spouse | — | 37 | ~1903 |
| Joseph Lambert | Head | — | 38 | ~1902 |
| Lucille Lambert | Daughter | — | 9 | ~1931 |
| Hugh Lambert | Daughter | — | 14 | ~1926 |
Census Appearances
1920
Middlesex, Massachusetts
Son, age 18
Middlesex, Massachusetts · implied b. ~1902 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lambert |
| Given Name | Joseph A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Canada French |
| Mother's Birthplace | Canada French |
| Occupation | Machinist |
| Industry | Cotton Mill |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Middlesex, Massachusetts
Head, age 28
Middlesex, Massachusetts · implied b. ~1902 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lambert |
| Given Name | Joseph A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| Age at First Marriage | 23 |
| Father's Birthplace | Canada French |
| Mother's Birthplace | Canada French |
| Occupation | Manager |
| Industry | Retail grocery |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | No |
| Home Value / Rent | R |
| Radio Set | 30 |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Head, age 38
Middlesex-County, Massachusetts · implied b. ~1902 — 4 household members
| Surname | Lambert |
| Given Name | Joseph H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Somerville City |
| 1935 Residence (County) | Middlesex |
| Occupation | Painter |
| Industry | own business |
| Class of Worker | OA |
| Hours Worked | 48 |
| Income (1939) | 0 |
| Highest Grade | G 8 |
| 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 Joseph Lambert across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Omer Lambert (~0.92 confidence) and mother Eva Lambert (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Omer Lambert
b. ~1879
Source father
● Household
· direct · ~0.92
Mother
Eva Lambert
b. ~1878
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Joseph Lambert
Head · 1940 · age 38 · b. ~1902 · 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-t0627-01702-00176)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mildred Woodworth | 36 | Wife | — | Massachusetts |
| 2 | Robert Woodworth | 14 | Son | — | Massachusetts |
| 3 | Margaret Rigby | 74 | Head | — | Massachusetts |
| 4 | Joseph H. Lambert THIS PERSON | 38 | Head | Painter | Massachusetts |
| 5 | Gertrude Lambert | 37 | Wife | — | New Hampshire |
| 6 | Hugh Lambert | 14 | Daughter | — | Massachusetts |
| 7 | Lucille Lambert | 9 | Daughter | — | Massachusetts |
| 8 | William Bonney | 40 | Head | Printer | Massachusetts |
| 9 | Loretta Bonney | 35 | Wife | — | Massachusetts |
| 10 | Loretta Bonney | 17 | Daughter | — | Massachusetts |
| 11 | William Bonney | 13 | Son | — | Massachusetts |
| 12 | Elaine Bonney | 9 | Daughter | — | Massachusetts |
| 13 | Peter Manganis | 45 | Head | Laborer | France |
| 14 | Marguerite Manganis | 26 | Wife | — | Massachusetts |
| 15 | Esther Manganis | 5 | Daughter | — | Massachusetts |
| 16 | Charles Manganis | 3 | Son | — | Massachusetts |
| 17 | Mary Goodwin | 34 | Head | — | Massachusetts |
| 18 | Frederick Goodwin | 9 | Son | — | Massachusetts |
| 19 | Allen Goodwin | 6 | Son | — | Massachusetts |
| 20 | Carol Goodwin | 2 | Daughter | — | Massachusetts |
| 21 | Joseph Mydlowski | 42 | Head | Watchman | New Jersey |
| 22 | Mary Mydlowski | 37 | Wife | — | Massachusetts |
| 23 | Lorraine Mydlowski | 19 | Daughter | Mother'S Helper | Massachusetts |
| 24 | Philip Mydlowski | 15 | Son | — | Massachusetts |
| 25 | Barbara Mydlowski | 13 | Daughter | — | Massachusetts |
| 26 | Robert Mydlowski | 10 | Son | — | Massachusetts |
| 27 | Nelson Bury | 42 | Head | Wagon Salesman | Massachusetts |
| 28 | Beatrice Bury | 42 | Wife | — | England |
| 29 | Robert Bury | 17 | Son | Bus Boy | Rhode Island |
| 30 | Beatrice Bury | 16 | Daughter | — | Rhode Island |
| 31 | Joseph Latta | 72 | Lodger | — | Massachusetts |
| 32 | Charles Cenny | 70 | Lodger | — | Massachusetts |
| 33 | Alexander Rankin | 24 | Head | — | Canada French |
| 34 | Brenton Hush | 46 | Head | Plasterer | New Hampshire |
| 35 | Helen Hush | 50 | Wife | — | Massachusetts |
| 36 | Mary O'Meara | 10 | Daughter | — | Massachusetts |
| 37 | Paul O'Meara | 7 | Daughter | — | Massachusetts |
| 38 | John Roggin | 49 | Lodger | Chef | Massachusetts |
| 39 | Herbert Keefe | 26 | Head | Candy Maker | Massachusetts |
| 40 | Elizabeth Keefe | 23 | Wife | — | Massachusetts |
Pedigree Summary
Joseph
Gen 1 · 2 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)