LS
Lawrence Smith — 1940 US Census Record
Model Tree available1940 United States Federal Census · Union-County, New Jersey
Our Model Tree links this Lawrence Smith across the 1920, 1930 and 1940 US Censuses in Union-County, New Jersey (XGBoost, ~Confirmed), with identified parents Edward & Edward — first a son (b.~1918), then head of a 4-person household.
Age 22
b. ~1918
Male
Son
Born: New Jersey
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Union-County, New Jersey |
| Surname | Smith |
| Given Name | Lawrence |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Roselle Borough |
| 1935 Residence (County) | Union |
| Additional Details | |
| Occupation | Brick Layer |
| Industry | Const Co |
| Class of Worker | PW |
| Hours Worked | 36 |
| Income (1939) | 350 |
| Highest Grade | No H 4 |
| 1935 Residence | Same place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | Brick Layer |
| Township / Ward | Roselle Borough |
| Est. Birth Year | ~1918 |
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 Lawrence | Age | Birth yr |
|---|---|---|---|---|
| Edward Smith | Head | — | 44 | ~1896 |
| Robert Smith | Son | — | 23 | ~1917 |
| Lawrence Smith | Son | — | 22 | ~1918 |
| Louise Smith | Spouse | — | 43 | ~1897 |
Census Appearances
1920
Union, New …
Son, age 1
Union, New Jersey · implied b. ~1919 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Lawrence |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1930
Union, New …
Son, age 11
Union, New Jersey · implied b. ~1919 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Lawrence J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Union-County, New …
Son, age 22
Union-County, New Jersey · implied b. ~1918 — 4 household members
| Surname | Smith |
| Given Name | Lawrence |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Roselle Borough |
| 1935 Residence (County) | Union |
| Occupation | Brick Layer |
| Industry | Const Co |
| Class of Worker | PW |
| Hours Worked | 36 |
| Income (1939) | 350 |
| Highest Grade | No H 4 |
| 1935 Residence | Same place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
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 Smith across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Edward Smith (~0.92 confidence) and father Edward Smith (~0.92 confidence) and mother Louise Smith (~0.92 confidence) and father Edward Smith (~0.92 confidence) and mother Louise Smith (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Edward Smith
b. ~1896
Source father
● Household
· direct · ~0.92
Father
Edward Smith
b. ~1896
Source father
● Household
· direct · ~0.92
Mother
Louise Smith
b. ~1896
Source mother
● Household
· direct · ~0.92
Father
Edward Smith
b. ~1897
Source father
● Household
· direct · ~0.92
Mother
Louise Smith
b. ~1897
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Lawrence Smith
Son · 1940 · age 22 · b. ~1918 · New Jersey
★ You are viewing this record
Sibling
Robert Smith
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Union-County, New Jersey
Open full size
1940 US Federal Census — Union-County, New Jersey
Page Contents
36 people indexed on this census page (nara:1940:m-t0627-02386-00093)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Frank W. Donnelly | 54 | Brother | Watchman | Conn |
| 42 | William J. Donnelly | 13 | Nephew | — | New Jersey |
| 43 | Michael H. Rogers | 84 | Father-in-law | — | New Jersey |
| 44 | Sarah A. Rogers | 78 | Mother-in-law | — | New Jersey |
| 45 | Thomas H. Sr Jeffries | 44 | Head | Supervisor | Penna |
| 46 | Helen M. Jeffries | 43 | Wife | — | Penna |
| 47 | Thomas H. Jeffries | 18 | Son | — | Penna |
| 48 | John E. Jeffries | 16 | Son | — | Penna |
| 49 | George Jeffries | 10 | Son | — | New Jersey |
| 50 | Frank A. Frosch | 35 | Head | Draftsman | New Jersey |
| 51 | Anna D. Frosch | 30 | Wife | — | New Jersey |
| 52 | Jean D. Frosch | 5 | Daughter | — | New Jersey |
| 53 | Richard F. Frosch | 6 | Son | — | New Jersey |
| 54 | Albert A. Sr Witfill | 28 | Head | Repairman | New Jersey |
| 55 | Catherine Witfill | 27 | Wife | — | New Jersey |
| 56 | Albert A. Jr Witfill | 1 | Son | — | New Jersey |
| 57 | David A. Woodruff | 64 | Father-in-law | — | New York |
| 58 | Jennie C. Woodruff | 74 | Mother-in-law | — | New York |
| 59 | Stephen J. Bursch | 38 | Head | Operator | New Jersey |
| 60 | Mary E. Bursch | 31 | Wife | — | Penna |
| 61 | Mary B. Bursch | 8 | Daughter | — | New Jersey |
| 62 | Joseph Bursch | 2 | Son | — | New Jersey |
| 63 | Edward S. Smith | 44 | Head | Foreman | New York |
| 64 | Louise L. Smith | 43 | Wife | — | New York |
| 65 | Robert Smith | 23 | Son | — | New York |
| 66 | Lawrence Smith THIS PERSON | 22 | Son | Brick Layer | New Jersey |
| 67 | Louis Rosenson | 31 | Head | Clerk | New Jersey |
| 68 | Shirley Rosenson | 30 | Wife | — | Mass |
| 69 | Daniel P. Rosenson | 8 | Son | — | New Jersey |
| 70 | Mina F. Rosenson | 1 | Daughter | — | New Jersey |
| 75 | George Albert | 41 | Head | Route Driver | New York |
| 76 | Ida Albert | 39 | Wife | — | Russia |
| 77 | Milton Albert | 21 | Son | — | New York |
| 78 | Ethel Albert | 20 | Daughter | — | New York |
| 79 | Elsie Albert | 16 | Daughter | — | New Jersey |
| 80 | Alphonse Lyons | 51 | Head | Driller | Louisiana |
Pedigree Summary
Lawrence + 1 sibling
Gen 1 · 5 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)