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 & Peter — first a son (b.~1914), then head of a 3-person household.
Age 26
b. ~1914
Male
Son
Born: New York
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Kings-County, New York |
| Surname | McNamara |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | New York City |
| 1935 Residence (County) | Kings |
| Additional Details | |
| Occupation | Unemployed |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Unemployed |
| Township / Ward | New York City |
| Est. Birth Year | ~1914 |
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 | Son | — | 26 | ~1914 |
| Peter Mcnamara | Head | — | 60 | ~1880 |
| Johanna Mcnamara | Spouse | — | 60 | ~1880 |
Census Appearances
1920
Kings, New …
Son, age 5
Kings, New York · implied b. ~1915 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McNamara |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Occupation | none |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1930
Kings, New …
Son, age 15
Kings, New York · implied b. ~1915 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McNamara |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Can Read/Write | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Kings-County, New …
Son, age 26
Kings-County, New York · implied b. ~1914 — 3 household members
| Surname | McNamara |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | New York City |
| 1935 Residence (County) | Kings |
| Occupation | Unemployed |
| Highest Grade | Hs 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 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 Peter Mcnamara (~0.92 confidence) and father John Mcnamara (~0.92 confidence) and mother Rose Mcnamara (~0.92 confidence) and father James Mcnamara (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Johanna Mcnamara
b. ~1880
Source mother
● Household
· direct · ~0.92
Father
Peter Mcnamara
b. ~1880
Source father
● Household
· direct · ~0.92
Father
John Mcnamara
b. ~1885
Source father
● Household
· direct · ~0.92
Mother
Rose Mcnamara
b. ~1889
Source mother
● Household
· direct · ~0.92
Father
James Mcnamara
b. ~1892
Source father
● Household
· direct · ~0.92
This person
Anchor record
James Mcnamara
Son · 1940 · age 26 · b. ~1914 · 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
36 people indexed on this census page (nara:1940:m-t0627-02600-00364)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Michael Donnelly | 36 | Head | Sub Letter Carrier | Ireland |
| 42 | Anna Donnelly | 29 | Wife | — | Ireland |
| 43 | Joan Donnelly | 2 | Daughter | — | New York |
| 44 | Mary Donnelly | 1 | Daughter | — | New York |
| 45 | Thomas Leuken | 44 | Head | Clasterer | Ireland |
| 46 | Margaret Leuken | 41 | Wife | — | Ireland |
| 47 | Joseph Leuken | 11 | Son | — | New York |
| 48 | Madeline Leuken | 7 | Daughter | — | New York |
| 49 | Peter Mcnamara | 60 | Head | Retired On Pension | Ireland |
| 50 | Johanna Mcnamara | 60 | Wife | — | Ireland |
| 51 | James Mcnamara THIS PERSON | 26 | Son | Unemployed | New York |
| 52 | Alice Aler | 35 | Head | Operator | Italy |
| 53 | Tony Aler | 41 | Husband | Merchant Tray | Italy |
| 54 | Theribini Moranti | 65 | Mother | — | Italy |
| 55 | Matilda Moranti | 24 | Sister | Fate Club | Italy |
| 56 | Charles Jones | 41 | Head | Supt. | New York |
| 57 | Rubin Kempner | 60 | Head | Manager | London Engl |
| 58 | Lillie Kempner | 58 | Wife | — | Russia |
| 59 | Joan Kempner | 27 | Daughter | Intern | New York |
| 60 | E. Cincius | 42 | Head | Dress Maker | Poland |
| 61 | Ida Cincius | 37 | Wife | — | London Engl |
| 62 | Martin Cincius | 17 | Son | — | New York |
| 63 | Charles Cincius | 12 | Daughter | — | New York |
| 64 | Morris Lippert | 68 | Head | Retired On Pension | Hungary |
| 65 | Reggie Lippert | 65 | Wife | — | Hungary |
| 66 | Hilda Lippert | 41 | Daughter | Bookkeeper | Toledo Ohio |
| 67 | Max Dishragad | 41 | Head | Agent | New York |
| 68 | Mollie Dishragad | 30 | Wife | — | Russia |
| 69 | Beverly Dishragad | 14 | Daughter | — | New York |
| 70 | Howard Dishragad | 11 | Son | — | New York |
| 71 | Barren Lufsi | 52 | Lodger | Unemployed Disability | Russia |
| 72 | Harry Halland | 44 | Head | Operator | Poland |
| 73 | Sonia Halland | 38 | Wife | Assistant At Apartment | Russia |
| 74 | Miriam Halland | 18 | Daughter | Bookkeeper | New York |
| 75 | Leonard Halland | 14 | Son | — | New York |
| 76 | Anthony Halland | 11 | Son | — | New York |
Pedigree Summary
James
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)