MC
Marion Clark — 1940 US Census Record
Model Tree available1940 United States Federal Census · Kings-County, New York
Our Model Tree links this Marion Clark across the 1920, 1930 and 1940 US Censuses in Kings-County, New York (XGBoost, ~Confirmed), with identified parents Ezra & Ezra — first a daughter (b.~1918), then head of a 5-person household.
Age 22
b. ~1918
Female
Daughter
Born: New York
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Kings-County, New York |
| Surname | Clark |
| Given Name | Marion |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | New York City |
| 1935 Residence (County) | Kings |
| Additional Details | |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Township / Ward | New York City |
| Est. Birth Year | ~1918 |
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 Marion | Age | Birth yr |
|---|---|---|---|---|
| Agnes Clark | Spouse | — | 55 | ~1885 |
| Marion Clark | Daughter | — | 22 | ~1918 |
| Jeanette Clark | Daughter | — | 16 | ~1924 |
| Albert Clark | Son | — | 19 | ~1921 |
| Ezra Clark | Head | — | 62 | ~1878 |
Census Appearances
1920
Kings, New …
Daughter, age 2
Kings, New York · implied b. ~1918 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Marion |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | Mass. |
| Mother's Birthplace | New York |
| Occupation | none |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1930
Kings, New …
Daughter, age 13
Kings, New York · implied b. ~1917 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Marion |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | Massachusetts |
| 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 …
Daughter, age 22
Kings-County, New York · implied b. ~1918 — 5 household members
| Surname | Clark |
| Given Name | Marion |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | New York City |
| 1935 Residence (County) | Kings |
| 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 Marion Clark across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Ezra Clark (~0.92 confidence) and father Ezra Clark (~0.92 confidence) and father John Clark (~0.92 confidence) and mother Agnes Clark (~0.92 confidence) and mother Agnes Clark (~0.92 confidence) and mother Agnes Clark (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Ezra Clark
b. ~1878
Source father
● Household
· direct · ~0.92
Father
Ezra Clark
b. ~1877
Source father
● Household
· direct · ~0.92
Father
John Clark
b. ~1877
Source father
● Household
· direct · ~0.92
Mother
Agnes Clark
b. ~1883
Source mother
● Household
· direct · ~0.92
Mother
Agnes Clark
b. ~1885
Source mother
● Household
· direct · ~0.92
Mother
Agnes Clark
b. ~1884
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Marion Clark
Daughter · 1940 · age 22 · b. ~1918 · New York
★ You are viewing this record
Sibling
Jeanette Clark
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Albert Clark
Sibling · 1940 · age 19
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 — 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-t0627-02571-00426)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Charles Sewsperk | 58 | Head | Machinist | Austria |
| 2 | Frances Sewsperk | 45 | Wife | — | Austria |
| 3 | Anthony Mikoliv | 58 | Boarder | Carpenter | Austria |
| 4 | Charles Olsen | 41 | Head | Mechanic | Norway |
| 5 | Ernestine Olsen | 40 | Wife | — | New York |
| 6 | Ezra Clark | 62 | Head | Plumber | Mass. |
| 7 | Agnes Clark | 55 | Wife | — | New York |
| 8 | Marion Clark THIS PERSON | 22 | Daughter | — | New York |
| 9 | Albert Clark | 19 | Son | — | New York |
| 10 | Jeanette Clark | 16 | Daughter | — | New York |
| 11 | James Meehan | 38 | Head | Longshoreman | New York |
| 12 | Catherine Meehan | 38 | Wife | Sales Clerk | New York |
| 13 | Richard Brown | 40 | Head | Coffee Man | New York |
| 14 | Mary Brown | 39 | Wife | Housekeeper | New York |
| 15 | Julia Mcmahon | 56 | Head | — | Eire |
| 16 | Thomas Mcmahon | 33 | Son | Play Ground Director | New York |
| 17 | Gerald Mcmahon | 31 | Son | Lawyer | New York |
| 18 | Catherine Mcmahon | 27 | Daughter | Secretary | New York |
| 19 | Marie Mcmahon | 25 | Daughter | Bookkeeper | New York |
| 20 | Frances Mcmahon | 23 | Daughter | — | New York |
| 21 | Florence Mcmahon | 21 | Daughter | — | New York |
| 22 | Cornelius Sammon | 33 | Head | Clerk | New York |
| 23 | Marion Sammon | 33 | Wife | — | New York |
| 24 | Robert Sammon | 10 | Son | — | New York |
| 25 | Francis Sammon | 8 | Son | — | New York |
| 26 | Frank Michalski | 76 | Head | — | Poland |
| 27 | Mary Michalski | 69 | Wife | — | Poland |
| 28 | Caroline Michalski | 40 | Daughter | Numberer | New York |
| 29 | Mary Lefnes | 63 | Head | — | Eire |
| 30 | Rosemary Lefnes | 37 | Daughter | Clerk | New York |
| 31 | Irene Lefnes | 33 | Daughter | Clerk | New York |
| 32 | George A. Byrnes | 40 | Head | Traffic Clerk | New York |
| 33 | Irene Byrnes | 42 | Wife | — | New York |
| 34 | Robert James Byrnes | 11 | Son | — | New York |
| 35 | Delia Petty | 71 | Head | — | Eire |
| 36 | Harry Petty | 38 | Son | Clerk | New York |
| 37 | Charles Norris | 60 | Son-in-law | Lineman | Ohio |
| 38 | Mabel Norris | 46 | Daughter | Clerk | New York |
| 39 | Anthony Logalbo | 55 | Head | Clerk | Italy |
| 40 | Marie Logalbo | 47 | Wife | — | Italy |
Pedigree Summary
Marion + 2 siblings
Gen 1 · 6 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)