GC
Grace Clark — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Oakland-County, Michigan
Our Model Tree links this Grace Clark across the 1920, 1930 and 1940 US Censuses in Oakland-County, Michigan (XGBoost, ~Confirmed) — first a spouse (b.~1891), then head of a 5-person household.
Age 49
b. ~1891
Female
Spouse
Born: Michigan
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Oakland-County, Michigan |
| Surname | Clark |
| Given Name | Grace |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Michigan |
| 1935 Residence (City) | LYON |
| 1935 Residence (County) | OAKLAND |
| Additional Details | |
| Hours Worked | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Township / Ward | Lyon |
| Est. Birth Year | ~1891 |
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 Grace | Age | Birth yr |
|---|---|---|---|---|
| Verne Clark | Son | — | 18 | ~1922 |
| Harry Clark | Head | — | 55 | ~1885 |
| Grace Clark | Spouse | — | 49 | ~1891 |
| Barbara Clark | Daughter | — | 10 | ~1930 |
| Norman Clark | Son | — | 9 | ~1931 |
Census Appearances
1920
Oakland, Michigan
Spouse, age 26
Oakland, Michigan · implied b. ~1894 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Gail |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1930
Oakland, Michigan
Spouse, age 37
Oakland, Michigan · implied b. ~1893 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Gracia M. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Michigan |
| Age at First Marriage | 22 |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Can Read/Write | Yes |
| Home Owned/Rented | 62 |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Oakland-County, Michigan
Spouse, age 49
Oakland-County, Michigan · implied b. ~1891 — 5 household members
| Surname | Clark |
| Given Name | Grace |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Michigan |
| 1935 Residence (City) | LYON |
| 1935 Residence (County) | OAKLAND |
| Hours Worked | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| 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 Grace Clark across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Grace Clark
Spouse · 1940 · age 49 · b. ~1891 · Michigan
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Oakland-County, Michigan
Open full size
1940 US Federal Census — Oakland-County, Michigan
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-01800-00012)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Alexander Mclay | 51 | Head | Steamshovel Operator | Canada |
| 2 | Lillian Mclay | 19 | Daughter | — | Ohio |
| 3 | John Mclay | 16 | Son | — | Michigan |
| 4 | John F Butterfield | 57 | Head | Farmer | Kansas |
| 5 | Bertha A Butterfield | 52 | Wife | — | Michigan |
| 6 | Fredrick Butterfield | 12 | Son | — | Michigan |
| 7 | Clark Ward | 41 | Hired hand | Farmer | New York |
| 8 | Joseph Davis | 70 | Head | Farmer | Michigan |
| 9 | Maybell Davis | 65 | Wife | — | Michigan |
| 10 | Chester Bean | 38 | Head | Foreman | Ohio |
| 11 | Lucy Bean | 31 | Wife | — | Michigan |
| 12 | Ronald Bean | 2 | Son | — | Michigan |
| 14 | Herbert Westerbolt | 26 | Head | Farmer | Michigan |
| 15 | Edna Westerbolt | 24 | Wife | — | Michigan |
| 16 | Warren Westerbolt | 2 | Son | — | Michigan |
| 18 | William Janssen | 75 | Head | Fireman | Michigan |
| 19 | Catharine Janssen | 64 | Wife | — | Pennsylvania |
| 20 | Harry L Clark | 55 | Head | Cabinet Maker | Michigan |
| 21 | Grace Clark THIS PERSON | 49 | Wife | — | Michigan |
| 22 | Verne Clark | 18 | Son | — | Michigan |
| 23 | Barbara Clark | 10 | Daughter | — | Michigan |
| 24 | Norman Clark | 9 | Son | — | Michigan |
| 25 | Edwin Westerbolt | 25 | Head | Farmer | Michigan |
| 26 | Thelma Westerbolt | 22 | Wife | — | Michigan |
| 27 | Josephine Westerbolt | 52 | Head | — | Michigan |
| 28 | Albert Hopkin | 42 | Brother | Farmer | Michigan |
| 29 | Lester Belcher | 25 | Boarder | Carpenter | Michigan |
| 30 | Leo Bryant | 43 | Hired hand | Farmer | Michigan |
| 31 | Celia Westerbolt | 18 | Daughter | — | Michigan |
| 32 | Ralf Westerbolt | 15 | Son | — | Michigan |
| 33 | Elmer Westerbolt | 11 | Son | — | Michigan |
| 34 | Jay Resovich | 74 | Head | Farmer | Michigan |
| 35 | Marie Resovich | 69 | Wife | — | Michigan |
| 36 | Clara Resovich | 30 | Son | Draftsman | Michigan |
| 37 | Ernest Fisher | 42 | Head | Truck Driver | Michigan |
| 38 | Ann Fisher | 36 | Wife | — | Pennsylvania |
| 39 | William Allen | 36 | Head | Electrical Engineer | Michigan |
| 40 | Josephine Allen | 25 | Wife | — | Michigan |
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)