MC
Marion Clark — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cuyahoga-County, Ohio
Our Model Tree links this Marion Clark across the 1930 and 1940 US Censuses in Cuyahoga-County, Ohio (XGBoost, ~Confirmed) — first a daughter (b.~1924), then head of a 9-person household.
Age 16
b. ~1924
Female
Daughter
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cuyahoga-County, Ohio |
| Surname | Clark |
| Given Name | Marion |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Cleveland |
| 1935 Residence (County) | Cuyahoga |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | H-2 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Township / Ward | Cleveland |
| Est. Birth Year | ~1924 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Marion | Age | Birth yr |
|---|---|---|---|---|
| Patricia Clark | Daughter | — | 11 | ~1929 |
| Anna Clark | Spouse | — | 41 | ~1899 |
| James Clark | Son | — | 4 | ~1936 |
| Catheleen Clark | Daughter | — | 7 | ~1933 |
| Joseph Clark | Head | — | 46 | ~1894 |
| Elizabeth Clark | Daughter | — | 12 | ~1928 |
| Joseph Clark | Son | — | 14 | ~1926 |
| Cordelia Clark | Daughter | — | 15 | ~1925 |
| Marion Clark | Daughter | — | 16 | ~1924 |
Census Appearances
1930
Cuyahoga, Ohio
Daughter, age 6
Cuyahoga, Ohio · implied b. ~1924 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Marion |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Pennsylvania |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Cuyahoga-County, Ohio
Daughter, age 16
Cuyahoga-County, Ohio · implied b. ~1924 — 9 household members
| Surname | Clark |
| Given Name | Marion |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Cleveland |
| 1935 Residence (County) | Cuyahoga |
| Class of Worker | 0 |
| Highest Grade | H-2 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
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 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Marion Clark
Daughter · 1940 · age 16 · b. ~1924 · Ohio
★ You are viewing this record
Sibling
Cordelia Clark
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elizabeth Clark
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Clark
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Clark
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catheleen Clark
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patricia Clark
Sibling · 1940 · age 11
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 — Cuyahoga-County, Ohio
Open full size
1940 US Federal Census — Cuyahoga-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03216-00496)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Joseph Jr. Kamenicky | 39 | Son | Office Work | Ohio |
| 42 | James Kamenicky | 30 | Son | New Worker | Ohio |
| 43 | Florence Kamenicky | 25 | Daughter | Seamstress | Ohio |
| 44 | Dorothy Kamenicky | 20 | Daughter | Machine Operator | Ohio |
| 45 | Frank Kamensky | 65 | Head | Baker | Czechoslovakia |
| 46 | Anna Kamensky | 55 | Wife | — | Czechoslovakia |
| 47 | James Kvasnicka | 55 | Head | Machinist | Czechoslovakia |
| 48 | Anna Kvasnicka | 50 | Wife | — | Czechoslovakia |
| 49 | James Kvasnicka | 20 | Son | Musician | Ohio |
| 50 | Francis Nemec | 75 | Mother-in-law | — | Czechoslovakia |
| 51 | Charles Sinker | 45 | Head | Laborer | Ohio |
| 52 | Rose Sinker | 40 | Wife | Kitchen Helper | Ohio |
| 53 | Clarence Sinker | 18 | Son | Laborer | Ohio |
| 54 | Rita Sinker | 16 | Daughter | — | Ohio |
| 55 | Evelynn Sinker | 15 | Daughter | — | Ohio |
| 56 | Raymond Frida | 25 | Head | Cab Driver | Florida |
| 57 | Mary Frida | 22 | Wife | — | Ohio |
| 58 | Ben Figerski | 31 | Head | Polisher | Ohio |
| 59 | Boles Figerski | 27 | Wife | Presser | Ohio |
| 60 | Edward Twarogowski | 39 | Head | Truck Farmer | Ohio |
| 61 | Rose Twarogowski | 31 | Wife | — | Poland |
| 62 | Joseph Twarogowski | 13 | Son | — | Ohio |
| 63 | Raymond Twarogowski | 10 | Son | — | Ohio |
| 64 | Doris Twarogowski | 2 | Daughter | — | Ohio |
| 65 | Antonia Krejci | 70 | Head | — | Ohio |
| 66 | Joseph Papesk | 44 | Head | Machinist | Ohio |
| 67 | Helen Papesk | 40 | Wife | — | Ohio |
| 68 | Elmer Papesk | 19 | Son | — | Ohio |
| 69 | Norman Papesk | 11 | Son | — | Ohio |
| 70 | Joseph Clark | 46 | Head | Machinist | Kentucky |
| 71 | Anna Clark | 41 | Wife | — | Pennsylvania |
| 72 | Marion Clark THIS PERSON | 16 | Daughter | — | Ohio |
| 73 | Cordelia Clark | 15 | Daughter | — | Ohio |
| 74 | Joseph Jr. Clark | 14 | Son | — | Ohio |
| 75 | Elizabeth Clark | 12 | Daughter | — | Ohio |
| 76 | Patricia Clark | 11 | Daughter | — | Ohio |
| 77 | Catheleen Clark | 7 | Daughter | — | Ohio |
| 78 | James Clark | 4 | Son | — | Ohio |
| 79 | Clement Roch | 70 | Head | — | Czechoslovakia |
| 80 | Catherine Roch | 66 | Wife | — | Czechoslovakia |
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)