MC
Mary Clarke — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Bergen-County, New Jersey
Our Model Tree links this Mary Clarke across the 1930 and 1940 US Censuses in Bergen-County, New Jersey (XGBoost, ~Confirmed) — first a daughter (b.~1928), then head of a 11-person household.
Age 12
b. ~1928
Female
Daughter
Born: New Jersey
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Bergen-County, New Jersey |
| Surname | Clarke |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (County) | Bergen |
| Additional Details | |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Township / Ward | Teaneck |
| Est. Birth Year | ~1928 |
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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Ellen Clarke | Daughter | — | 7 | ~1933 |
| Helen Clarke | Spouse | — | 40 | ~1900 |
| Matthew Clarke | Head | — | 39 | ~1901 |
| Anne Clarke | Daughter | — | 15 | ~1925 |
| Matthew Clarke | Son | — | 18 | ~1922 |
| Michael Clarke | Son | — | 17 | ~1923 |
| Thomas Clarke | Son | — | 4 | ~1936 |
| Elizabeth Clarke | Daughter | — | 20 | ~1920 |
| Mary Clarke | Daughter | — | 12 | ~1928 |
| Catherine Clarke | Daughter | — | 14 | ~1926 |
| Grace Clarke | Daughter | — | 10 | ~1930 |
Census Appearances
1930
Bergen, New …
Daughter, age 2
Bergen, New Jersey · implied b. ~1928 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | CLARKE |
| Given Name | MARY |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Occupation | none |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Bergen-County, New …
Daughter, age 12
Bergen-County, New Jersey · implied b. ~1928 — 11 household members
| Surname | Clarke |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (County) | Bergen |
| Highest Grade | No 5 |
| 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 Mary Clarke across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Clarke
Daughter · 1940 · age 12 · b. ~1928 · New Jersey
★ You are viewing this record
Sibling
Matthew Clarke
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elizabeth Clarke
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Michael Clarke
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Grace Clarke
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anne Clarke
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Clarke
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ellen Clarke
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Clarke
Sibling · 1940 · age 14
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 — Bergen-County, New Jersey
Open full size
1940 US Federal Census — Bergen-County, New Jersey
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02314-00695)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Anna M. Kilmurray | 1 | Daughter | — | New Jersey |
| 2 | Kathleen Kilmurray | 0 | Daughter | — | New Jersey |
| 3 | John W. Larsen | 25 | Head | Accounting | New York |
| 4 | Eleanor Larsen | 24 | Wife | Stenographer | New Jersey |
| 5 | George Frederickson | 33 | Head | Painter | Sweden |
| 6 | Martha Frederickson | 30 | Wife | — | Sweden |
| 7 | Carl Hagbloom | 36 | Head | Bricklayer | Finland |
| 8 | Tyra Hagbloom | 30 | Wife | — | Finland |
| 9 | Rita Hagbloom | 8 | Daughter | — | New Jersey |
| 10 | Charles Burt | 31 | Head | 44 | New Jersey |
| 11 | Charlotte Burt | 24 | Wife | — | New Jersey |
| 12 | Charlotte J. Burt | 3 | Daughter | — | New Jersey |
| 13 | William Hanny | 52 | Head | 40 | New York |
| 14 | Minna Hanny | 44 | Wife | 40 | New Jersey |
| 15 | Lillian Hanny | 72 | Mother | — | New Jersey |
| 16 | Henry J. Ohaderrick | 53 | Head | Manager | Germany |
| 17 | Anna Ohaderrick | 47 | Wife | — | Germany |
| 18 | Henry Jr. Ohaderrick | 17 | Son | — | New Jersey |
| 19 | Conrad Ohaderrick | 16 | Son | — | New Jersey |
| 20 | Mary Ohaderrick | 12 | Daughter | — | New Jersey |
| 21 | Matthew Clarke | 39 | Head | 50 | New York |
| 22 | Helen Clarke | 40 | Wife | — | New York |
| 23 | Elizabeth Clarke | 20 | Daughter | 40 | New York |
| 24 | Matthew Jr. Clarke | 18 | Son | 50 | New York |
| 25 | Michael Clarke | 17 | Son | — | New York |
| 26 | Anne Clarke | 15 | Daughter | — | New Jersey |
| 27 | Catherine Clarke | 14 | Daughter | — | New Jersey |
| 28 | Mary Clarke THIS PERSON | 12 | Daughter | — | New Jersey |
| 29 | Grace Clarke | 10 | Daughter | — | New Jersey |
| 30 | Ellen Clarke | 7 | Daughter | — | New Jersey |
| 31 | Thomas Clarke | 4 | Son | — | New Jersey |
| 32 | Louis Lombi | 56 | Head | Machinist | Italy |
| 33 | Jennie Lombi | 50 | Wife | — | Italy |
| 34 | Ezio Lombi | 21 | Son | 48 | New Jersey |
| 35 | Gaetano Strambi | 44 | Head | Mason | Italy |
| 36 | Katherine Strambi | 38 | Wife | Operator | Italy |
| 37 | Rudolph Strambi | 9 | Son | — | New Jersey |
| 38 | Onorino Grondo | 70 | Brother-in-law | — | Italy |
| 39 | Jean Ehring | 72 | Head | — | Germany |
| 40 | Walter Davis | 47 | Head | Salesman | Minnesota |
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)