MC
Margaret Clark — 1940 US Census Record
Model Tree available1940 United States Federal Census · Passaic-County, New Jersey
Our Model Tree links this Margaret Clark across the 1920, 1930 and 1940 US Censuses in Passaic-County, New Jersey (XGBoost, ~Confirmed), with identified parents John & Margaret — first a daughter (b.~1912), then head of a 5-person household.
Age 28
b. ~1912
Female
Daughter
Born: New Jersey
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Passaic-County, New Jersey |
| Surname | Clark |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Passaic City |
| 1935 Residence (County) | Passaic |
| Additional Details | |
| Occupation | Typist |
| Industry | Insurance office |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1000 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | Typist |
| Township / Ward | Passaic 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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Margaret Clark | Daughter | — | 28 | ~1912 |
| Morris Clark | Head | — | 63 | ~1877 |
| William Clark | Son | — | 23 | ~1917 |
| Morris Clark | Son | — | 25 | ~1915 |
| Catherine Clark | Spouse | — | 56 | ~1884 |
Census Appearances
1920
Passaic, New …
Daughter, age 9
Passaic, New Jersey · implied b. ~1911 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Margaret F. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1930
Passaic, New …
Daughter, age 19
Passaic, New Jersey · implied b. ~1911 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Occupation | Teacher |
| Industry | Public School |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Passaic-County, New …
Daughter, age 28
Passaic-County, New Jersey · implied b. ~1912 — 5 household members
| Surname | Clark |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Passaic City |
| 1935 Residence (County) | Passaic |
| Occupation | Typist |
| Industry | Insurance office |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1000 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
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 Margaret Clark across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Clark (~0.92 confidence) and mother Margaret Clark (~0.92 confidence) and father Morris Clark (~0.92 confidence) and mother Catherine Clark (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Clark
b. ~1875
Source father
● Household
· direct · ~0.92
Mother
Margaret Clark
b. ~1876
Source mother
● Household
· direct · ~0.92
Father
Morris Clark
b. ~1877
Source father
● Household
· direct · ~0.92
Mother
Catherine Clark
b. ~1884
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Margaret Clark
Daughter · 1940 · age 28 · b. ~1912 · New Jersey
★ You are viewing this record
Sibling
William Clark
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Morris Clark
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 — Passaic-County, New Jersey
Open full size
1940 US Federal Census — Passaic-County, New Jersey
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02377-00587)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Morris Clark | 63 | Head | Foreman | New Jersey |
| 2 | Catherine Clark | 56 | Wife | — | New Jersey |
| 3 | Margaret Clark THIS PERSON | 28 | Daughter | Typist | New Jersey |
| 4 | Morris Clark | 25 | Son | — | New Jersey |
| 5 | William Clark | 23 | Son | Helper | New Jersey |
| 6 | Mary Hollar | 61 | Head | — | Austria |
| 7 | Frederick Hollar | 34 | Son | Taxi Driver | New Jersey |
| 8 | Edward Hollar | 29 | Son | 40 | H-2 |
| 9 | Russell Hollar | 24 | Son | Taxi Driver | New Jersey |
| 10 | Salvatore Gagliardotto | 60 | Head | Laborer | Italy |
| 11 | Rose Gagliardotto | 57 | Wife | Finisher | Italy |
| 12 | Angelina Gagliardotto | 22 | Daughter | Salesgirl | New York |
| 13 | Rodolfo Gagliardotto | 20 | Son | — | New York |
| 14 | Carmelo Gagliardotto | 18 | Son | Plasterer | New York |
| 15 | Lawrence Costello | 42 | Head | Fireman | New Jersey |
| 16 | Emily Costello | 40 | Wife | — | New York |
| 17 | Lawrence Costello | 16 | Son | — | New Jersey |
| 18 | Helen Costello | 10 | Daughter | — | New Jersey |
| 19 | Mary Frances Costello | 64 | Mother | — | New York |
| 20 | Joseph Johnson | 52 | Brother-in-law | Fireman | New Jersey |
| 21 | Dominick Gangara | 38 | Head | Mechanic | Italy |
| 22 | Eleanor Gangara | 32 | Wife | — | New York |
| 23 | Marion Gangara | 13 | Daughter | — | New Jersey |
| 24 | Bessie Gangara | 11 | Daughter | — | New Jersey |
| 25 | Victor Farras | 36 | Head | Fireman | New Jersey |
| 26 | Esther Farras | 31 | Wife | Operator | New Jersey |
| 27 | Mary Sennes | 51 | Mother-in-law | — | Hungary |
| 28 | Vilma Sennes | 20 | Sister-in-law | Waitress | Illinois |
| 29 | Anthony Re | 67 | Head | Salesman | Italy |
| 30 | Angellina Re | 57 | Wife | — | Italy |
| 31 | Concetta Re | 26 | Daughter | Floor Girl | New Jersey |
| 32 | Anthony Re | 24 | Son | Shoe Maker | New Jersey |
| 33 | Catherine Re | 13 | Daughter | — | New Jersey |
| 34 | Wesley Tribling | 69 | Head | — | New Jersey |
| 35 | Elizabeth Tribling | 65 | Wife | — | New Jersey |
| 36 | Kenneth Maticker | 13 | Grandson | — | New Jersey |
| 37 | Bernice Maticker | 11 | Granddaughter | — | New Jersey |
| 38 | Leo Tribling | 41 | Head | Attendant | New Jersey |
| 39 | Victoria Tribling | 37 | Wife | — | New Jersey |
| 40 | Joan Tribling | 9 | Daughter | — | New Jersey |
Pedigree Summary
Margaret + 2 siblings
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)