LJ
Lawrence Jones — 1940 US Census Record
Model Tree available1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Lawrence Jones across the 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Arthur & Mary — first a head (b.~1916), then head of a 5-person household.
Age 24
b. ~1916
Male
Head
Born: Massachusetts
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Jones |
| Given Name | Lawrence |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Somerville |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Occupation | Chauffeur |
| Industry | City Garbage |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 900 |
| Highest Grade | H 7 |
| 1935 Residence | Same House |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Chauffeur |
| Township / Ward | Somerville |
| Est. Birth Year | ~1916 |
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 Lawrence | Age | Birth yr |
|---|---|---|---|---|
| Mildred Jones | Other | — | 26 | ~1914 |
| William Jones | Son | — | 24 | ~1916 |
| Ernest Jones | Son | — | 21 | ~1919 |
| Annie Jones | Other | — | 60 | ~1880 |
| Lawrence Jones | Head | — | 24 | ~1916 |
Census Appearances
1920
Suffolk, Massachusetts
Son, age 2
Suffolk, Massachusetts · implied b. ~1918 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jones |
| Given Name | Lawrence W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Suffolk, Massachusetts
Son, age 13
Suffolk, Massachusetts · implied b. ~1917 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jones |
| Given Name | Lawrence |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Head, age 24
Middlesex-County, Massachusetts · implied b. ~1916 — 5 household members
| Surname | Jones |
| Given Name | Lawrence |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Somerville |
| 1935 Residence (County) | Middlesex |
| Occupation | Chauffeur |
| Industry | City Garbage |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 900 |
| Highest Grade | H 7 |
| 1935 Residence | Same House |
| 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 Lawrence Jones across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Arthur Jones (~0.92 confidence) and mother Mary Jones (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Arthur Jones
b. ~1876
Source father
● Household
· direct · ~0.92
Mother
Mary Jones
b. ~1878
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Lawrence Jones
Head · 1940 · age 24 · b. ~1916 · 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-t0627-01702-00598)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | William Roderick | 3 | Son | — | Massachusetts |
| 42 | Theresa Roderick | 1 | Daughter | — | Massachusetts |
| 43 | William Ramsdell | 74 | Head | — | Massachusetts |
| 44 | Ellen S. Ramsdell | 81 | Wife | — | Nova Scotia |
| 45 | Edward Ramsdell | 54 | Son | Laborer | Massachusetts |
| 46 | Grace M. Ramsdell | 48 | Daughter | — | Massachusetts |
| 47 | Lawrence Jones THIS PERSON | 24 | Head | Chauffeur | Massachusetts |
| 48 | Mildred Jones | 26 | Sister | Waitress | Massachusetts |
| 49 | William Jones | 24 | Son | Chauffeur | Massachusetts |
| 50 | Ernest Jones | 21 | Son | Mechanic | Massachusetts |
| 51 | Annie Jones | 60 | Mother | — | Massachusetts |
| 52 | Arthur Bradley | 37 | Head | Lumper | Massachusetts |
| 53 | Agnes Bradley | 37 | Wife | — | Massachusetts |
| 54 | Arthur Bradley | 17 | Son | — | Massachusetts |
| 55 | Edward Bradley | 10 | Son | — | Massachusetts |
| 56 | John Mccarthy | 59 | Head | Chauffeur | Massachusetts |
| 57 | Mary Mccarthy | 58 | Wife | — | Massachusetts |
| 58 | William Mccarthy | 27 | Son | Laborer | Massachusetts |
| 59 | — | None | — | — | — |
| 60 | Alexander Kigel | 64 | Head | Automobile Parts | Poland |
| 61 | Ida B. Kigel | 60 | Wife | — | Poland |
| 62 | Doris Kigel | 26 | Daughter | Social Case-Worker | Massachusetts |
| 63 | Jeremiah Connolly | 37 | Head | Laborer | Eire |
| 64 | Mary Connolly | 31 | Wife | — | Eire |
| 65 | Mary E. Connolly | 10 | Daughter | — | Massachusetts |
| 66 | Patrick Connolly | 9 | Son | — | Massachusetts |
| 67 | Theresa Connolly | 7 | Daughter | — | Massachusetts |
| 68 | Jeremiah Connolly | 3 | Son | — | Massachusetts |
| 69 | Sheila Connolly | 0 | Daughter | — | Massachusetts |
| 70 | Manuel Lanza | 25 | Head | Laborer | Massachusetts |
| 71 | Lucinda Lanza | 25 | Wife | — | Massachusetts |
| 72 | Walter Lanza | 2 | Son | — | Massachusetts |
| 73 | John Almeida | 37 | Head | Laborer | Portugal |
| 74 | Gloria Almeida | 29 | Wife | — | Portugal |
| 75 | Elsie Almeida | 10 | Daughter | — | Massachusetts |
| 76 | Antonio Burgio | 26 | Head | Bed Lasting | Massachusetts |
| 77 | Mary Burgio | 22 | Wife | Marker | Massachusetts |
| 78 | Antonio Burgio | 2 | Son | — | Massachusetts |
| 79 | Henry Birchmore | 70 | Head | — | France |
| 80 | Mary Birchmore | 68 | Wife | — | France |
Pedigree Summary
Lawrence
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)