HC
Harold Clark — 1940 US Census Record
Model Tree available1940 United States Federal Census · Grant-County, Oregon
Our Model Tree links this Harold Clark across the 1920, 1930 and 1940 US Censuses in Grant-County, Oregon (XGBoost, ~Confirmed), with identified parents George & Elizabeth — first a head (b.~1909), then head of a 3-person household.
Age 31
b. ~1909
Male
Head
Born: Oregon
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Grant-County, Oregon |
| Surname | Clark |
| Given Name | Harold |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Oregon |
| 1935 Residence (City) | Canyon City town |
| 1935 Residence (County) | Grant |
| Additional Details | |
| Occupation | Stage driver |
| Industry | U.S. Mail |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1320 |
| Highest Grade | H-2 |
| 1935 Residence | Oregon |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
| Occupation | Stage Driver |
| Township / Ward | Canyon City Town |
| Est. Birth Year | ~1909 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Harold | Age | Birth yr |
|---|---|---|---|---|
| Wanda Clark | Spouse | — | 24 | ~1916 |
| Harold Clark | Head | — | 31 | ~1909 |
| Mary Clark | Daughter | — | 1 | ~1939 |
Census Appearances
1920
Grant, Oregon
Son, age 10
Grant, Oregon · implied b. ~1910 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Harold W |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Oregon |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Oregon |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
1930
Grant, Oregon
Son, age 21
Grant, Oregon · implied b. ~1909 — 49 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Harold W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Oregon |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Oregon |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
1940
Grant-County, Oregon
Head, age 31
Grant-County, Oregon · implied b. ~1909 — 3 household members
| Surname | Clark |
| Given Name | Harold |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Oregon |
| 1935 Residence (City) | Canyon City town |
| 1935 Residence (County) | Grant |
| Occupation | Stage driver |
| Industry | U.S. Mail |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1320 |
| Highest Grade | H-2 |
| 1935 Residence | Oregon |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
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 Harold Clark across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father George Clark (~0.92 confidence) and mother Elizabeth Clark (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
George Clark
b. ~1863
Source father
● Household
· direct · ~0.92
Mother
Elizabeth Clark
b. ~1879
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Harold Clark
Head · 1940 · age 31 · b. ~1909 · Oregon
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Grant-County, Oregon
Open full size
1940 US Federal Census — Grant-County, Oregon
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03361-00010)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Murlan W. Johnson | 25 | Head | Salesman | Oregon |
| 2 | June W. Johnson | 23 | Wife | — | Oregon |
| 3 | Raymond Provins | 34 | Head | Salesman | Oregon |
| 4 | Dorothy Provins | 24 | Wife | — | Oregon |
| 5 | Dolores Provins | 2 | Daughter | — | Oregon |
| 6 | Errett Hicks | 73 | Head | Attorney | Missouri |
| 7 | Blanche Hicks | 66 | Wife | — | Oregon |
| 8 | Ward Mullenner | 55 | Head | Miner | Virginia |
| 9 | Sophia Mullenner | 49 | Wife | — | Montana |
| 10 | Dorothy Mullenner | 19 | Daughter | Maid | Canada-English |
| 11 | Frank Mullenner | 16 | Son | — | Canada-English |
| 12 | Gordon Mullenner | 13 | Son | — | Oregon |
| 13 | Charlotte Ricco | 54 | Head | — | Minnesota |
| 14 | Georgia Livermore | 18 | Daughter | — | Oregon |
| 15 | Ernest Jr. Livermore | 16 | Son | — | Oregon |
| 16 | Carroll Livermore | 6 | Daughter | — | Oregon |
| 17 | Margaret Venger | 72 | Mother | — | Ohio |
| 18 | Harold Clark THIS PERSON | 31 | Head | Stage Driver | Oregon |
| 19 | Wanda Clark | 24 | Wife | — | Colorado |
| 20 | Mary E. Clark | 1 | Daughter | — | Oregon |
| 21 | Alta Anne Clark | 61 | Head | Janitor | Oregon |
| 22 | F. C. Mack | 61 | Head | Deputy Sheriff | Oregon |
| 23 | Gertrude Mack | 59 | Wife | — | Washington |
| 24 | Charles W. Mack | 23 | Son | Laborer | Oregon |
| 25 | Carl Carlson | 57 | Head | — | Sweden |
| 26 | Irene Carlson | 51 | Wife | — | Nebraska |
| 27 | Carlton Simmons | 47 | Brother-in-law | — | California |
| 28 | Thomas S. Sewell | 70 | Head | — | Oregon |
| 29 | Julia Jackson | 69 | Keeper | — | Texas |
| 30 | Charles Carroll | 54 | Head | — | Oregon |
| 31 | Eva Carroll | 45 | Wife | — | South Dakota |
| 32 | John Carroll | 21 | Son | — | Oregon |
| 33 | Alice Carroll | 17 | Niece | Waitress | Oregon |
| 34 | Gladys Carroll | 15 | Niece | — | Oregon |
| 35 | C. P. Haight | 65 | Head | Editor | California |
| 36 | Bernice Haight | 50 | Wife | — | Oregon |
| 37 | Stanley Bohle | 23 | Lodger | — | Iowa |
| 38 | Terry Bell | 34 | Head | Pharmacist | Oregon |
| 39 | Monica Bell | 29 | Wife | — | South Dakota |
| 40 | Clyde Jones | 56 | Head | Miner | Oregon |
Pedigree Summary
Harold
Gen 1 · 2 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)