AC
Anna Clark — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Mason-County, Illinois
Our Model Tree links this Anna Clark across the 1920, 1930 and 1940 US Censuses in Mason-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1855), then head of a 2-person household.
Age 85
b. ~1855
Female
Head
Born: Pennsylvania
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Mason-County, Illinois |
| Surname | Clark |
| Given Name | Anna B. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 85 |
| Marital Status | Widowed |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Hours Worked | 0 |
| Highest Grade | No 4 |
| 1935 Residence | Illinois |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Bath |
| Est. Birth Year | ~1855 |
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.
2 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Anna | Age | Birth yr |
|---|---|---|---|---|
| Nora Cooper | Daughter | — | 43 | ~1897 |
| Anna Clark | Head | — | 85 | ~1855 |
Census Appearances
1920
Mason, Illinois
Head, age 65
Mason, Illinois · implied b. ~1855 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Anna B |
| Relationship to Head | head |
| Sex | F |
| Color / Race | White |
| Age | 65 |
| Marital Status | Widowed |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Industry | private family |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Mason, Illinois
Other, age 74
Mason, Illinois · implied b. ~1856 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Anna B. |
| Relationship to Head | Servant |
| Sex | F |
| Color / Race | White |
| Age | 74 |
| Marital Status | Widowed |
| Birthplace | Pennsylvania |
| Age at First Marriage | 20 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Servant |
| Industry | Private Family |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Mason-County, Illinois
Head, age 85
Mason-County, Illinois · implied b. ~1855 — 2 household members
| Surname | Clark |
| Given Name | Anna B. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 85 |
| Marital Status | Widowed |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Hours Worked | 0 |
| Highest Grade | No 4 |
| 1935 Residence | Illinois |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 Anna 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
Anna Clark
Head · 1940 · age 85 · b. ~1855 · Illinois
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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 — Mason-County, Illinois
Open full size
1940 US Federal Census — Mason-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00855-00038)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Frank H. Lane | 5 | Son | — | Illinois |
| 42 | Verla M. Lane | 1 | Daughter | — | Illinois |
| 43 | Ernest M. Fletcher | 46 | Head | Trucker | Illinois |
| 44 | Helen J. Fletcher | 41 | Wife | — | Illinois |
| 45 | Donella Donalda | 15 | Daughter | — | Illinois |
| 46 | Harold Donalda | 13 | Son | — | Illinois |
| 47 | Garold Donalda | 11 | Son | — | Illinois |
| 48 | Audrey L. Donalda | 9 | Daughter | — | Illinois |
| 49 | James E. Donalda | 6 | Son | — | Illinois |
| 50 | Daniel M. Donalda | 1 | Son | — | Illinois |
| 51 | Geraldine E. Pazara | 17 | Daughter | — | Illinois |
| 52 | John G. Corder | 53 | Head | Carpenter | Illinois |
| 53 | Edith M. Corder | 50 | Wife | — | Illinois |
| 54 | Eileen E. Corder | 12 | Daughter | — | Illinois |
| 55 | Louise A. Steging | 74 | Mother-in-law | — | Illinois |
| 56 | Elmer E. Vosler | 69 | Head | — | Iowa |
| 57 | Charley S. Vosler | 71 | Brother | — | Tennessee |
| 58 | Anna B. Clark THIS PERSON | 85 | Head | — | Pennsylvania |
| 59 | Nora A. Cooper | 43 | Daughter | — | Illinois |
| 60 | Philip G. Billings | 46 | Head | Barber | Iowa |
| 61 | Bertha V. Billings | 48 | Wife | — | Illinois |
| 62 | Adolph W. Kramer | 70 | Head | — | Illinois |
| 63 | Ida J. Kramer | 68 | Wife | — | Illinois |
| 64 | Harmon D. Koke | 54 | Head | Laborer | Illinois |
| 65 | Minnie H. Koke | 57 | Wife | — | Germany |
| 66 | Kathryn Schone | 87 | Mother-in-law | — | Germany |
| 67 | Oscar Carlock | 60 | Head | Laborer | Illinois |
| 68 | Walter B. Dunlap | 73 | Head | — | Illinois |
| 69 | Kate M. Dunlap | 72 | Wife | — | Illinois |
| 70 | Hazel Owen | 45 | Daughter | Nurse | Illinois |
| 71 | Carl L. Naylor | 51 | Head | Mail Carrier | Illinois |
| 72 | Augusta D. Naylor | 46 | Wife | — | Illinois |
| 73 | Mayme M. Naylor | 16 | Daughter | — | Illinois |
| 74 | Herbert C. Naylor | 11 | Son | — | Illinois |
| 75 | George M. Hart | 58 | Head | Laborer | Illinois |
| 76 | Elsie B. Hart | 43 | Wife | — | Illinois |
| 77 | M. Bernice Hart | 13 | Daughter | — | Illinois |
| 78 | Henry A. Forsyth | 86 | Head | — | Indiana |
| 79 | Sarah K. Forsyth | 77 | Wife | — | Illinois |
| 80 | Dora L. Mccarty | 61 | Head | — | 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)