HC
Helen Clark — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Sanilac-County, Michigan
Our Model Tree links this Helen Clark across the 1930 and 1940 US Censuses in Sanilac-County, Michigan (XGBoost, ~Confirmed) — first a daughter (b.~1924), then head of a 10-person household.
Age 16
b. ~1924
Female
Daughter
Born: Michigan
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Sanilac-County, Michigan |
| Surname | Clark |
| Given Name | Helen C. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Worth T |
| 1935 Residence (County) | Sanilac |
| Additional Details | |
| Occupation | House Work |
| Industry | Private Family |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Same House |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Occupation | House Work |
| Township / Ward | Worth T |
| 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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Helen | Age | Birth yr |
|---|---|---|---|---|
| Helen Clark | Daughter | — | 16 | ~1924 |
| Beatrice Clark | Daughter | — | 11 | ~1929 |
| Marraine Clark | Daughter | — | 1 | ~1939 |
| Jean Clark | Daughter | — | ~1940 | |
| Ruth Clark | Daughter | — | 7 | ~1933 |
| June Clark | Daughter | — | 4 | ~1936 |
| Rollie Clark | Head | — | 42 | ~1898 |
| Howard Clark | Son | — | 10 | ~1930 |
| Robert Clark | Son | — | 19 | ~1921 |
| Gwendolyne Clark | Spouse | — | 42 | ~1898 |
Census Appearances
1930
Sanilac, Michigan
Daughter, age 6
Sanilac, Michigan · implied b. ~1924 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Helen G. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Sanilac-County, Michigan
Daughter, age 16
Sanilac-County, Michigan · implied b. ~1924 — 10 household members
| Surname | Clark |
| Given Name | Helen C. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Worth T |
| 1935 Residence (County) | Sanilac |
| Occupation | House Work |
| Industry | Private Family |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Same House |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
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 Helen Clark across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Helen Clark
Daughter · 1940 · age 16 · b. ~1924 · Michigan
★ You are viewing this record
Sibling
Ruth Clark
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Beatrice Clark
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marraine Clark
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Clark
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
June Clark
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Howard Clark
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jean Clark
Sibling · 1940 · age
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 — Sanilac-County, Michigan
Open full size
1940 US Federal Census — Sanilac-County, Michigan
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01818-00856)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Thomas H. Mcnabb | 40 | Head | Farmer | Michigan |
| 2 | Hazel M. Mcnabb | 34 | Wife | — | Michigan |
| 3 | Thomas J. Mcnabb | 13 | Son | — | Michigan |
| 4 | Ralph D. Mcnabb | 11 | Son | — | Michigan |
| 5 | Joseph Lander | 63 | Border | Farm Laborer | Michigan |
| 6 | Kenneth T. Mcnabb | 18 | Son | Farm Laborer | Michigan |
| 7 | Rollie J. Clark | 42 | Head | Farmer | Michigan |
| 8 | Gwendolyne Clark | 42 | Wife | — | Michigan |
| 9 | Robert J. Clark | 19 | Son | Reforestation | Michigan |
| 10 | Helen C. Clark THIS PERSON | 16 | Daughter | House Work | Michigan |
| 11 | Beatrice E. Clark | 11 | Daughter | — | Michigan |
| 12 | Howard D. Clark | 10 | Son | — | Michigan |
| 13 | Ruth V. Clark | 7 | Daughter | — | Michigan |
| 14 | June L. Clark | 4 | Daughter | — | Michigan |
| 15 | Marraine C. Clark | 1 | Daughter | — | Michigan |
| 16 | Jean E. Clark | 0 | Daughter | — | Michigan |
| 17 | Walter Zaremba | 34 | Head | Farmer | Poland |
| 18 | Stella Zaremba | 47 | Wife | — | Poland |
| 19 | Walter C. Zaremba | 16 | Son | Farmer | Pennsylvania |
| 20 | Ted K. Zaremba | 14 | Son | Farmer | Pennsylvania |
| 21 | Loretta F. Zaremba | 8 | Daughter | — | Pennsylvania |
| 22 | Fred J. Johnson | 31 | Head | Section Hand | Michigan |
| 23 | Bernice H. Johnson | 25 | Wife | — | Michigan |
| 24 | John F. Johnson | 1 | Son | — | Michigan |
| 25 | Anna Johnson | 66 | Mother | — | Michigan |
| 26 | Herman M. Johnson | 54 | Brother | Farm Laborer | Michigan |
| 27 | Fred F. Helm | 59 | Head | Farmer | Michigan |
| 28 | Mable M. Helm | 53 | Wife | — | Michigan |
| 29 | Frederick J. Helm | 4 | Son | — | Michigan |
| 30 | Glenn I. Lamb | 43 | Head | Farmer | Michigan |
| 31 | Jessie I. Lamb | 35 | Wife | — | Michigan |
| 32 | Leola M. Lamb | 7 | Daughter | — | Michigan |
| 33 | Lewis E. Lamb | 2 | Son | — | Michigan |
| 34 | Wilfred W. Doan | 33 | Hired-Hand | Farm Laborer | Michigan |
| 35 | Bert H. Bradley | 66 | Head | — | Michigan |
| 36 | Mary J. Bradley | 77 | Wife | — | Ireland |
| 37 | Andrew E. Bradley | 40 | Son | Farmer | Michigan |
| 38 | Otto H. Bradley | 41 | Son | Laborer | Michigan |
| 39 | Cecil Thorley | 28 | Head | Service Man | Michigan |
| 40 | Evelyn Thorley | 26 | Wife | — | Michigan |
Related Census Records
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)