CJ
Clara Jackson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Humboldt-County, California
Our Model Tree links this Clara Jackson across the 1930 and 1940 US Censuses in Humboldt-County, California (XGBoost, ~Confirmed) — first a head (b.~1888), then head of a 9-person household.
Age 52
b. ~1888
Female
Head
Born: California
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Humboldt-County, California |
| Surname | Jackson |
| Given Name | Clara |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | California |
| 1935 Residence (City) | Mad River Township |
| 1935 Residence (County) | Humboldt |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 50 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Occupation | Farmer |
| Township / Ward | Mad River Township |
| Est. Birth Year | ~1888 |
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 Clara | Age | Birth yr |
|---|---|---|---|---|
| Sonya Jackson | Daughter | — | 1 | ~1939 |
| Carroll Jackson | Son | — | 10 | ~1930 |
| Ethel Jackson | Daughter | — | 12 | ~1928 |
| Carl Jackson | Son | — | 10 | ~1930 |
| Crystal Jackson | Daughter | — | 10 | ~1930 |
| Clara Jackson | Head | — | 52 | ~1888 |
| Jonathan Jackson | Son | — | 14 | ~1926 |
| Sally Jackson | Daughter | — | 9 | ~1931 |
| Richard Jackson | Son | — | 3 | ~1937 |
Census Appearances
1930
Humboldt, California
Other, age 40
Humboldt, California · implied b. ~1890 — 13 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jackson |
| Given Name | Clara M. |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | California |
| Age at First Marriage | 20 |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
Humboldt-County, California
Head, age 52
Humboldt-County, California · implied b. ~1888 — 9 household members
| Surname | Jackson |
| Given Name | Clara |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | California |
| 1935 Residence (City) | Mad River Township |
| 1935 Residence (County) | Humboldt |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 50 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
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 Clara Jackson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Clara Jackson
Head · 1940 · age 52 · b. ~1888 · California
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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 — Humboldt-County, California
Open full size
1940 US Federal Census — Humboldt-County, California
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00208-00236)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Ivah L. West | 48 | Wife | — | California |
| 42 | Margaret M. West | 18 | Daughter | — | California |
| 43 | Clara Jackson THIS PERSON | 52 | Head | Farmer | California |
| 44 | Jonathan Jackson | 14 | Son | — | California |
| 45 | Ethel Jackson | 12 | Daughter | — | California |
| 46 | Carroll Jackson | 10 | Son | — | California |
| 47 | Crystal Jackson | 10 | Daughter | — | California |
| 48 | Carl Jackson | 10 | Son | — | California |
| 49 | Sally Ann Jackson | 9 | Daughter | — | California |
| 50 | Richard M. Jackson | 3 | Son | — | California |
| 51 | Sonya D. Jackson | 1 | Daughter | — | California |
| 52 | Abel J. Thomas | 22 | Head | — | California |
| 53 | Walter Gehrig | 70 | Head | Logger-Cutter | Switzerland |
| 54 | Lena B. Gehrig | 57 | Wife | — | California |
| 55 | Barbara Gehrig | 13 | Daughter | — | California |
| 56 | Robert L. Stephenson | 30 | Head | Farmer | California |
| 57 | Eugene R. Stephenson | 5 | Son | — | California |
| 58 | Frances Snider | 26 | Housekeeper | Housekeeper | California |
| 59 | Edna Snider | 6 | Daughter | — | California |
| 60 | Dotty Childs | 44 | Head | — | Missouri |
| 61 | William Childs | 14 | Son | — | California |
| 62 | Keith Childs | 12 | Son | — | California |
| 63 | Dorothy Childs | 11 | Daughter | — | California |
| 64 | Joyette Childs | 8 | Daughter | — | California |
| 65 | Benjamin F. Scott | 76 | Head | — | California |
| 66 | Ellen Scott | 71 | Wife | — | California |
| 67 | Roy Westerfield | 31 | Head | Truck Driver | Missouri |
| 68 | James Elgar | 30 | Head | Welder | Colorado |
| 69 | Marie Elgar | 24 | Wife | — | California |
| 70 | James M. Elgar | 5 | Son | — | California |
| 71 | Leslie Wallace | 20 | Roomer | Laborer | California |
| 72 | Delmo Shinn | 40 | Roomer | Attendant | Oregon |
| 73 | Joseph Marino | 41 | Roomer | Laborer | Texas |
| 74 | Alva A. Crawford | 70 | Head | Farmer | Nebraska |
| 75 | Laura Crawford | 63 | Wife | — | California |
| 76 | Walter A. Crawford | 37 | Head | Farmer | California |
| 77 | Ana Crawford | 30 | Wife | — | California |
| 78 | William G. Dogherra | 25 | Head | Truck Driver | California |
| 79 | Barbara Dogherra | 19 | Wife | — | California |
| 80 | Jay Dogherra | 0 | Son | — | California |
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)