JC
James Cox — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Kings-County, New York
Our Model Tree links this James Cox across the 1920, 1930 and 1940 US Censuses in Kings-County, New York (XGBoost, ~Confirmed) — first a head (b.~1883), then head of a 6-person household.
Age 57
b. ~1883
Male
Head
Born: Ireland
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Kings-County, New York |
| Surname | Cox |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 57 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| 1935 Residence (City) | New York City |
| 1935 Residence (County) | Kings |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Motorman |
| Industry | B.M.T. |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1200 |
| Highest Grade | G 8 |
| 1935 Residence | Ireland |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Occupation | Motorman |
| Township / Ward | New York City |
| Est. Birth Year | ~1883 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| James Cox | Head | — | 57 | ~1883 |
| Mary Cox | Other | — | 24 | ~1916 |
| Helen Cox | Other | — | 22 | ~1918 |
| Peter Cox | Son | — | 22 | ~1918 |
| Joseph Cox | Son | — | 20 | ~1920 |
| Thomas Cox | Son | — | 29 | ~1911 |
Census Appearances
Head, age 36
New York, New York · implied b. ~1884 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cox |
| Given Name | Joseph |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Ireland |
| Year of Immigration | 1911 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Conductor |
| Industry | P.R. |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Birth Country | Ireland |
| Year of Naturalization | 1916 |
| Birthplace (normalized) | ireland |
1930
New York, …
Head, age 46
New York, New York · implied b. ~1884 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cox |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1910 |
| Age at First Marriage | 30 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Iron Worker |
| Industry | Factory |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Home Value / Rent | 75.00 |
| Veteran | No |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1940
Kings-County, New …
Head, age 57
Kings-County, New York · implied b. ~1883 — 6 household members
| Surname | Cox |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 57 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| 1935 Residence (City) | New York City |
| 1935 Residence (County) | Kings |
| Naturalization Status | Naturalized |
| Occupation | Motorman |
| Industry | B.M.T. |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1200 |
| Highest Grade | G 8 |
| 1935 Residence | Ireland |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
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 Cox across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
James Cox
Head · 1940 · age 57 · b. ~1883 · New York
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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
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1940 US Federal Census — Kings-County, New York
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02577-00538)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Josephine Ross | 73 | Head | — | New York |
| 2 | John A. Bond | 67 | Lodger | — | New York |
| 3 | John J. Ross | 38 | Lodger | Salesman | Connecticut |
| 4 | Harry J. Chakales | 35 | Head | Physician | Greece |
| 5 | Emily T. Chakales | 32 | Wife | — | So. Carolina |
| 6 | Martha Chakales | 8 | Daughter | — | Delaware |
| 7 | Harold Chakales | 5 | Son | — | New York |
| 8 | George N. Traksas | 25 | Brother-in-law | Physician | So. Carolina |
| 9 | Herbert Tempro | 34 | Head | Bookkeeper | New York |
| 10 | Vera Tempro | 34 | Wife | — | New York |
| 11 | Donald A. Tempro | 14 | Son | — | New York |
| 12 | Richard H. Tempro | 9 | Son | — | New York |
| 13 | Thomas Watson | 76 | Lodger | — | Barbados B.W.I. |
| 14 | Mary Watson | 67 | Mother-in-law | — | Montserrat |
| 15 | Marie Mccormack | 62 | Head | — | Ireland |
| 16 | Jeanette Mccormack | 35 | Daughter | Statistician | New York |
| 17 | Joseph Mccormack | 27 | Son | Representative | New York |
| 18 | Frances Mccormack | 23 | Daughter | Clerk | New York |
| 19 | Denis Dockery | 34 | Lodger | Chauffeur | Ireland |
| 20 | George M. Johnstone | 63 | Head | Supt. Master Mariner | England |
| 21 | Gwendolyn Johnstone | 62 | Wife | — | England |
| 22 | Walter Flowers | 30 | Lodger | Clerk | Pennsylvania |
| 23 | John Variades | 41 | Head | Furrier | Turkey |
| 24 | Alma Variades | 45 | Wife | — | Ohio |
| 25 | Jessie Rittenhouse | 65 | Lodger | Teacher | England |
| 26 | Edward May | 48 | Head | — | New York |
| 27 | Edward Jr. May | 24 | Son | Clerk | New York |
| 28 | Genevieve May | 21 | Daughter | Sales Lady | New York |
| 29 | Mary May | 20 | Daughter | Clerk | New York |
| 30 | Alfred May | 19 | Son | Operator | New York |
| 31 | John May | 16 | Son | — | New York |
| 32 | Annie Shulty | 49 | Head | Servant | Pennsylvania |
| 33 | Byron Shulty | 23 | Son | Repairman | Massachusetts |
| 34 | Harold Bolden | 29 | Lodger | — | Sweden |
| 35 | James Cox THIS PERSON | 57 | Head | Motorman | Ireland |
| 36 | Peter Cox | 22 | Son | Stock Clerk | New York |
| 37 | Joseph Cox | 20 | Son | Office Clerk | New York |
| 38 | Thomas Cox | 29 | Son | Clerk | New York |
| 39 | Helen Cox | 22 | Daughter-in-law | — | Pennsylvania |
| 40 | Mary Cox | 24 | Sister-in-law | Clerk | New York |
Related Census Records
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)