LM
Lawrence Martin — 1940 US Census Record
Model Tree available1940 United States Federal Census · Kings-County, New York
Our Model Tree links this Lawrence Martin across the 1920, 1930 and 1940 US Censuses in Kings-County, New York (XGBoost, ~Confirmed), with identified parents James & James — first a son (b.~1908), then head of a 4-person household.
Age 32
b. ~1908
Male
Son
Born: New York
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Kings-County, New York |
| Surname | Martin |
| Given Name | Lawrence |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | New York |
| 1935 Residence (County) | Kings |
| Additional Details | |
| Occupation | Clerk |
| Industry | Bank |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1560 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Clerk |
| Township / Ward | New York |
| Est. Birth Year | ~1908 |
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 |
|---|---|---|---|---|
| James Martin | Head | — | 69 | ~1871 |
| Lawrence Martin | Son | — | 32 | ~1908 |
| Gervase Martin | Son | — | 25 | ~1915 |
| Mary Martin | Spouse | — | 66 | ~1874 |
Census Appearances
1920
Bronx, New …
Son, age 12
Bronx, New York · implied b. ~1908 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Lawrence |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1930
Kings, New …
Son, age 22
Kings, New York · implied b. ~1908 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Lawrence |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Occupation | Clerk |
| Industry | Bank |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Kings-County, New …
Son, age 32
Kings-County, New York · implied b. ~1908 — 4 household members
| Surname | Martin |
| Given Name | Lawrence |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | New York |
| 1935 Residence (County) | Kings |
| Occupation | Clerk |
| Industry | Bank |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1560 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
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 Martin across 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage. Identified parents: father James Martin (~0.92 confidence) and father James Martin (~0.92 confidence) and father Lawrence Martin (~0.92 confidence) and mother Mary Martin (~0.92 confidence) and mother Mary Martin (~0.92 confidence) and mother Nora Martin (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Martin
b. ~1873
Source father
● Household
· direct · ~0.92
Father
James Martin
b. ~1871
Source father
● Household
· direct · ~0.92
Father
Lawrence Martin
b. ~1881
Source father
● Household
· direct · ~0.92
Mother
Mary Martin
b. ~1874
Source mother
● Household
· direct · ~0.92
Mother
Mary Martin
b. ~1877
Source mother
● Household
· direct · ~0.92
Mother
Nora Martin
b. ~1883
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Lawrence Martin
Son · 1940 · age 32 · b. ~1908 · New York
★ You are viewing this record
Sibling
Gervase Martin
Sibling · 1940 · age 25
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 — Kings-County, New York
Open full size
1940 US Federal Census — Kings-County, New York
Page Contents
31 people indexed on this census page (nara:1940:m-t0627-02553-00171)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Dorothy O'Mera | 44 | Wife | — | New York |
| 2 | Dorothy O'Mera | 19 | Daughter | — | New York |
| 3 | Morgan O'Mera | 15 | Son | — | New York |
| 4 | Head Flanagan-Sylvester | None | M | Bank | — |
| 5 | Mary Flanagan-Sylvester | 41 | Wife | — | New York |
| 6 | Sylvester Flanagan-Sylvester | 19 | Son | — | New York |
| 7 | Mary Flanagan-Sylvester | 17 | Daughter | — | New York |
| 8 | Helen Flanagan-Sylvester | 15 | Daughter | — | New York |
| 9 | Catherine Flanagan-Sylvester | 11 | Daughter | — | New York |
| 10 | Dorothy Flanagan-Sylvester | 6 | Daughter | — | New York |
| 11 | Alice Flanagan-Sylvester | 3 | Daughter | — | New York |
| 12 | James Martin | 69 | Head | Oiler | New York |
| 13 | Mary Martin | 66 | Wife | — | New York |
| 14 | Lawrence Martin THIS PERSON | 32 | Son | Clerk | New York |
| 15 | Gervase Martin | 25 | Son | — | New York |
| 16 | Jean Halbert | 39 | Head | Repairman | New York |
| 17 | Elizabeth Halbert | 37 | Wife | — | New York |
| 18 | Elizabeth Halbert | 15 | Daughter | — | New York |
| 19 | Dorothy Halbert | 13 | Daughter | — | New York |
| 20 | Patricia Halbert | 11 | Daughter | — | New York |
| 21 | Geremiah Halbert | 9 | Son | — | New York |
| 22 | James Halbert | 7 | Son | — | New York |
| 23 | Jerome Dobson | 34 | Head | Pressman | New York |
| 24 | Rosemary Dobson | 33 | Wife | — | New York |
| 25 | Eleanor Dobson | 9 | Daughter | — | New York |
| 26 | William Dobson | 7 | Son | — | New York |
| 27 | Rosemary Dobson | 6 | Daughter | — | New York |
| 28 | Jane Dobson | 4 | Daughter | — | New York |
| 29 | Sue Mary Dobson | 1 | Daughter | — | New York |
| 30 | Denis Dore | 68 | Head | Guard | Eire |
| 31 | Ellen Dore | 70 | Wife | — | Eire |
Pedigree Summary
Lawrence + 1 sibling
Gen 1 · 6 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)