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Betty Clark — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Clay-County, Illinois
Our Model Tree links this Betty Clark across the 1930 and 1940 US Censuses in Clay-County, Illinois (XGBoost, ~Confirmed) — first a daughter (b.~1922), then head of a 8-person household.
Age 18
b. ~1922
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Clay-County, Illinois |
| Surname | Clark |
| Given Name | Betty |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Flora |
| Additional Details | |
| Occupation | Maid |
| Industry | Private house |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 35 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Maid |
| Township / Ward | Harter |
| Est. Birth Year | ~1922 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Betty | Age | Birth yr |
|---|---|---|---|---|
| Conrad Clark | Son | — | 24 | ~1916 |
| Emma Clark | Daughter | — | 9 | ~1931 |
| Eugene Clark | Son | — | 12 | ~1928 |
| Edward Clark | Head | — | 60 | ~1880 |
| Betty Clark | Daughter | — | 18 | ~1922 |
| Harry Clark | Son | — | 16 | ~1924 |
| Bural Clark | Son | — | 27 | ~1913 |
| Minnie Clark | Spouse | — | 55 | ~1885 |
Census Appearances
1930
Clay, Illinois
Daughter, age 7
Clay, Illinois · implied b. ~1923 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Betty J |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Clay-County, Illinois
Daughter, age 18
Clay-County, Illinois · implied b. ~1922 — 8 household members
| Surname | Clark |
| Given Name | Betty |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Flora |
| Occupation | Maid |
| Industry | Private house |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 35 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 Betty Clark across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Betty Clark
Daughter · 1940 · age 18 · b. ~1922 · Illinois
★ You are viewing this record
Sibling
Eugene Clark
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Emma Clark
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Conrad Clark
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harry Clark
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bural Clark
Sibling · 1940 · age 27
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 — Clay-County, Illinois
Open full size
1940 US Federal Census — Clay-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00769-00296)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Nellie Mccormick | 38 | Wife | — | Illinois |
| 42 | Chas. E. Wall | 19 | Son | — | Illinois |
| 43 | Leon Mccormick | 18 | Son | — | Illinois |
| 44 | Dorris Mccormick | 12 | Daughter | — | Illinois |
| 45 | William Mccormick | 9 | Son | — | Illinois |
| 46 | Betty L. Mccormick | 7 | Daughter | — | Illinois |
| 47 | Chas. Burton | 58 | Head | Carpenter | Illinois |
| 48 | Edward Pierce | 46 | Head | Farmer | Illinois |
| 49 | Cora Pierce | 45 | Wife | — | Illinois |
| 50 | Lillian Pierce | 19 | Daughter | — | Illinois |
| 51 | Rowena Pierce | 18 | Daughter | — | Illinois |
| 52 | Wilma Pierce | 16 | Daughter | — | Illinois |
| 53 | Bobby Pierce | 12 | Son | — | Illinois |
| 54 | John Goble | 71 | Head | — | Illinois |
| 55 | Anna Goble | 70 | Wife | — | Illinois |
| 56 | Mary Stoops | 72 | Head | — | Illinois |
| 57 | Floyd Stoops | 46 | Son | Farmer | Illinois |
| 58 | Hazel Stoops | 44 | Wife | — | Illinois |
| 59 | James E. Stoops | 18 | Son | — | Illinois |
| 60 | Bernice Stoops | 14 | Daughter | — | Illinois |
| 61 | J. E. Thompson | 68 | Head | Farmer | Illinois |
| 62 | Ruby Thompson | 32 | Daughter | Domestic | Illinois |
| 63 | Ralph Wolfe | 33 | Head | Farmer | Illinois |
| 64 | Jennie Wolfe | 37 | Wife | — | Illinois |
| 65 | Eugene Wolfe | 3 | Son | — | Illinois |
| 66 | Harry W. Fisher | 51 | Head | Farmer | Illinois |
| 67 | Zella N. Fisher | 46 | Wife | — | Indiana |
| 68 | Glenn E. Fisher | 24 | Son | W.P.A. Laborer | Illinois |
| 69 | Anna B. Fisher | 18 | Mother-in-law | — | Illinois |
| 70 | Edward Clark | 60 | Head | W.P.A. Laborer | Ohio |
| 71 | Minnie Clark | 55 | Wife | — | Illinois |
| 72 | Bural Clark | 27 | Son | — | Illinois |
| 73 | Conrad Clark | 24 | Son | Laborer | Illinois |
| 74 | Betty Clark THIS PERSON | 18 | Daughter | Maid | Illinois |
| 75 | Harry Clark | 16 | Son | — | Illinois |
| 76 | Eugene Clark | 12 | Son | — | Illinois |
| 77 | Emma May Clark | 9 | Daughter | — | Illinois |
| 78 | U. R. Walker | 66 | Head | Farmer | Illinois |
| 79 | May Walker | 62 | Wife | — | Illinois |
| 80 | Arthur Walker | 24 | Son | Cutter | Illinois |
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)