JC
James Cowan — 1940 US Census Record
Model Tree available1940 United States Federal Census · Kings-County, New York
Our Model Tree links this James Cowan across the 1910, 1920, 1930 and 1940 US Censuses in Kings-County, New York (XGBoost, ~Confirmed), with identified parents Roland & William — first a head (b.~1906), then head of a 4-person household.
Age 34
b. ~1906
Male
Head
Born: New Hampshire
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Kings-County, New York |
| Surname | Cowan |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | New Hampshire |
| 1935 Residence (City) | Brooklyn N.Y. |
| 1935 Residence (County) | Kings |
| Additional Details | |
| Occupation | Underwriter |
| Industry | Fire Insurance |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1440 |
| Highest Grade | C 4 |
| 1935 Residence | Same place |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
| Occupation | Underwriter |
| Township / Ward | Brooklyn Ny |
| Est. Birth Year | ~1906 |
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 James | Age | Birth yr |
|---|---|---|---|---|
| Robert Cowan | Son | — | 6 | ~1934 |
| Priscilla Cowan | Spouse | — | 31 | ~1909 |
| James Cowan | Head | — | 34 | ~1906 |
| Carolyn Cowan | Daughter | — | 9 | ~1931 |
Census Appearances
1910
Kings, New …
Son, age 4
Kings, New York · implied b. ~1906 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cowan |
| Given Name | James B |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | New Hampshire |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | New Hampshire |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
1920
Kings, New …
Son, age 13
Kings, New York · implied b. ~1907 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cowan |
| Given Name | James W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | New Hampshire |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | New Hampshire |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
1930
Kings, New …
Head, age 24
Kings, New York · implied b. ~1906 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cowan |
| Given Name | James T. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Married |
| Birthplace | New Hampshire |
| Age at First Marriage | 23 |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Vermont |
| Occupation | Oil Co. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 40 |
| Radio Set | R |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
1940
Kings-County, New …
Head, age 34
Kings-County, New York · implied b. ~1906 — 4 household members
| Surname | Cowan |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | New Hampshire |
| 1935 Residence (City) | Brooklyn N.Y. |
| 1935 Residence (County) | Kings |
| Occupation | Underwriter |
| Industry | Fire Insurance |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1440 |
| Highest Grade | C 4 |
| 1935 Residence | Same place |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
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 Cowan across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Roland Cowan (~0.92 confidence) and father William Cowan (~0.92 confidence) and mother Alice Cowan (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Roland Cowan
b. ~1880
Source father
● Household
· direct · ~0.92
Father
William Cowan
b. ~1875
Source father
● Household
· direct · ~0.92
Mother
Alice Cowan
b. ~1885
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Cowan
Head · 1940 · age 34 · b. ~1906 · 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
40 people indexed on this census page (nara:1940:m-t0627-02576-00057)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | William Benson | 29 | Head | Meter Tester | New York |
| 42 | Marie Benson | 29 | Wife | Clerk | New York |
| 43 | Beatrice Carroll | 33 | Head | — | New York |
| 44 | Martha Cartwright | 71 | Wife | — | England |
| 45 | James Cowan THIS PERSON | 34 | Head | Underwriter | New Hampshire |
| 46 | Priscilla H. Cowan | 31 | Wife | — | Vermont |
| 47 | Carolyn Cowan | 9 | Daughter | — | Vermont |
| 48 | Robert H. Cowan | 6 | Son | — | Vermont |
| 49 | Rolf Lassen | 35 | Head | Boiler Maker | Norway |
| 50 | Gudrun Lassen | 29 | Wife | — | Norway |
| 51 | Edwin Johnson | 41 | Brother | Mechanist | New York |
| 52 | Dorothy Johnson | 32 | Sister | — | New York |
| 53 | Richard Hagenah | 30 | Head | Clerk | Germany |
| 54 | Emma Hagenah | 31 | Wife | Home Worker | Germany |
| 55 | Hubert Vooght | 25 | Head | Clerk | England |
| 56 | Mary Vooght | 20 | Wife | Typist | Scotland |
| 57 | Anatoli Trufemoff | 41 | Head | Parquet Floor | Russia |
| 58 | Charles Raab | 32 | Head | Diamond Setter | New York |
| 59 | Frances Raab | 32 | Wife | Operator | New York |
| 60 | Augustus Spieler | 56 | Head | Mail Dispatcher | Norway |
| 61 | Catherine Spieler | 47 | Wife | — | Norway |
| 62 | Thomas Spieler | 16 | Son | — | New York |
| 63 | Joseph De Lorenzo | 39 | Head | Bus Driver | New York |
| 64 | Elvira De Lorenzo | 32 | Wife | — | New York |
| 65 | Mary De Lorenzo | 12 | Daughter | — | New York |
| 66 | David Fraser | 31 | Head | Painter | Scotland |
| 67 | Mary Fraser | 25 | Wife | Counter Girl | New York |
| 68 | Lauri Laisi | 25 | Head | Lithographer | New York |
| 69 | Margaret Laisi | 25 | Wife | — | New York |
| 70 | Eileen Cudmore | 46 | Head | Operator | Ireland |
| 71 | Harry Lyle | 26 | Head | Cashier | New York |
| 72 | Viola Lyle | 22 | Wife | — | New York |
| 73 | Thomas Richards | 35 | Head | Clerk | New York |
| 74 | Rose Richards | 31 | Wife | Clerk | New York |
| 75 | Elsa Grelck | 38 | Head | Supervisor | New York |
| 76 | Elsie Foster | 42 | Head | Expeditor | Illinois |
| 77 | Mary Foster | 16 | Daughter | — | Illinois |
| 78 | George Molloy | 25 | Head | Chauf | New York |
| 79 | Alma Molloy | 21 | Wife | — | New York |
| 80 | Louis Stangel | 41 | Head | Foot-Dye Maker | Germany |
Pedigree Summary
James
Gen 1 · 3 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)