JM
James Mcnamara — 1940 US Census Record
Model Tree available1940 United States Federal Census · Kings-County, New York
Our Model Tree links this James Mcnamara across the 1920, 1930 and 1940 US Censuses in Kings-County, New York (XGBoost, ~Confirmed), with identified parents Johanna & John — first a head (b.~1912), then head of a 3-person household.
Age 28
b. ~1912
Male
Head
Born: New York
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Kings-County, New York |
| Surname | McNamara |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (City) | New York City |
| 1935 Residence (County) | Kings |
| Additional Details | |
| Occupation | longshoreman |
| Industry | shipyard |
| Class of Worker | PW |
| Income (1939) | 800 |
| Highest Grade | Hs 1 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Longshoreman |
| Township / Ward | New York City |
| Est. Birth Year | ~1912 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| James Mcnamara | Head | — | 28 | ~1912 |
| James Mcnamara | Son | — | 1 | ~1939 |
| Katherine Mcnamara | Spouse | — | 28 | ~1912 |
Census Appearances
1920
Kings, New …
Son, age 6
Kings, New York · implied b. ~1914 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McNamara |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| 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 17
Kings, New York · implied b. ~1913 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McNamara |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read/Write | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Kings-County, New …
Head, age 28
Kings-County, New York · implied b. ~1912 — 3 household members
| Surname | McNamara |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (City) | New York City |
| 1935 Residence (County) | Kings |
| Occupation | longshoreman |
| Industry | shipyard |
| Class of Worker | PW |
| Income (1939) | 800 |
| Highest Grade | Hs 1 |
| 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 James Mcnamara across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Johanna Mcnamara (~0.92 confidence) and father John Mcnamara (~0.92 confidence) and father James Mcnamara (~0.92 confidence) and mother Katherine Mcnamara (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Johanna Mcnamara
b. ~1879
Source mother
● Household
· direct · ~0.92
Father
John Mcnamara
b. ~1880
Source father
● Household
· direct · ~0.92
Father
James Mcnamara
b. ~1884
Source father
● Household
· direct · ~0.92
Mother
Katherine Mcnamara
b. ~1885
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Mcnamara
Head · 1940 · age 28 · b. ~1912 · New York
★ 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 — Kings-County, New York
Open full size
1940 US Federal Census — Kings-County, New York
Page Contents
27 people indexed on this census page (nara:1940:m-t0627-02568-00757)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John Mohan | 10 | Son | — | New York |
| 2 | Donald Mohan | 5 | Son | — | New York |
| 3 | James Cartin | 60 | Head | Porter | Connecticut |
| 4 | Katherine Cartin | 35 | Daughter | Inspector | New York |
| 5 | Roland Cartin | 34 | Son | Laborer | New York |
| 6 | Jennie Salmier | 45 | Head | — | Italy |
| 7 | Philip Salmier | 19 | Son | Dishwasher | New York |
| 8 | Mary Salmier | 18 | Daughter | — | New York |
| 9 | Frances Salmier | 13 | Daughter | — | New York |
| 10 | Anna Lindquist | 66 | Head | — | Sweden |
| 11 | Robert Lindquist | 29 | Son | Cutter | New York |
| 12 | Albert Lindquist | 27 | Son | Laborer | New York |
| 13 | Antoinette Lindquist | 24 | Daughter | Topper | New York |
| 14 | James Mcnamara THIS PERSON | 28 | Head | Longshoreman | New York |
| 15 | Katherine Mcnamara | 28 | Wife | — | New York |
| 16 | James Mcnamara | 1 | Son | — | New York |
| 17 | Thomas Wills | 38 | Head | Car Washer | North Carolina |
| 18 | Margaret Wills | 35 | Wife | — | Newfoundland |
| 19 | Walter Wills | 15 | Son | Laborer | New York |
| 20 | Thomas Wills | 12 | Son | — | New York |
| 21 | Sophie Wills | 10 | Daughter | — | New York |
| 22 | Robert Wills | 7 | Son | — | New York |
| 23 | Joseph Wills | 5 | Son | — | New York |
| 24 | Thomas Brady | 32 | Head | Bookkeeper | New York |
| 25 | Phillip Brady | 29 | Brother | Laborer | New York |
| 26 | Bridget Brady | 61 | Mother | — | Western Ireland |
| 27 | John J. Griffin | 60 | Lodger | Machinist | Pennsylvania |
Pedigree Summary
James
Gen 1 · 4 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)