MC
Mary Clark — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Linn-County, Oregon
Our Model Tree links this Mary Clark across the 1920, 1930 and 1940 US Censuses in Linn-County, Oregon (XGBoost, ~Confirmed) — first a head (b.~1888), then head of a 6-person household.
Age 52
b. ~1888
Female
Head
Born: Nebraska
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Linn-County, Oregon |
| Surname | Clark |
| Given Name | Mary E. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 52 |
| Marital Status | Widowed |
| Birthplace | Nebraska |
| 1935 Residence (City) | Foster pt |
| 1935 Residence (County) | Linn |
| Additional Details | |
| Industry | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
| Township / Ward | Foster Pt |
| 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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Nadine Clark | Daughter | — | 12 | ~1928 |
| Elsie Clark | Daughter | — | 16 | ~1924 |
| Louise Clark | Daughter | — | 14 | ~1926 |
| Mary Clark | Head | — | 52 | ~1888 |
| Kenneth Clark | Son | — | 19 | ~1921 |
| William Clark | Son | — | 23 | ~1917 |
Census Appearances
1920
Linn, Oregon
Spouse, age 33
Linn, Oregon · implied b. ~1887 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Mary E |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Nebraska |
| Father's Birthplace | North Carolina |
| Mother's Birthplace | Kansas |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
1930
Linn, Oregon
Spouse, age 42
Linn, Oregon · implied b. ~1888 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Mary E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Nebraska |
| Age at First Marriage | 15 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Kansas |
| Can Read/Write | Yes |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
1940
Linn-County, Oregon
Head, age 52
Linn-County, Oregon · implied b. ~1888 — 6 household members
| Surname | Clark |
| Given Name | Mary E. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 52 |
| Marital Status | Widowed |
| Birthplace | Nebraska |
| 1935 Residence (City) | Foster pt |
| 1935 Residence (County) | Linn |
| Industry | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
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 Mary Clark across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Clark
Head · 1940 · age 52 · b. ~1888 · Oregon
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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 — Linn-County, Oregon
Open full size
1940 US Federal Census — Linn-County, Oregon
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-03371-00334)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Leonard T. Walters | 47 | Head | Baker | Michigan |
| 42 | I. Lee Walters | 12 | Son | — | Oregon |
| 43 | S. Dolores Walters | 9 | Daughter | — | Oregon |
| 44 | Clarence S. Wiley | 63 | Head | Operator | Oregon |
| 45 | Irene E. Wiley | 58 | Wife | — | Oregon |
| 46 | Harold Wiley | 14 | Son | — | Oregon |
| 47 | William T. Foust | 27 | Head | Faller | Oregon |
| 48 | Clarice O. Foust | 21 | Wife | — | Oregon |
| 49 | Donna W. Foust | 3 | Daughter | — | Oregon |
| 50 | Joyce E. Foust | 2 | Daughter | — | Oregon |
| 51 | Theodore M. Foust | 0 | Son | — | Oregon |
| 52 | Lilly J. Foust | 73 | Mother-in-law | — | Oregon |
| 53 | C. Clifford Thramer | 29 | Head | Loader | Minn |
| 54 | Celia Thramer | 22 | Wife | — | Minn |
| 55 | Charles Thramer | 1 | Son | — | Oregon |
| 56 | Chester Hodge | 75 | Head | Road Construction | Illinois |
| 57 | Pearl Hodge | 40 | Wife | — | Oregon |
| 58 | Robert E. Hodge | 19 | Son | — | Oregon |
| 59 | Edith Hodge | 15 | Daughter | — | Oregon |
| 60 | Effie Hodge | 13 | Daughter | — | Oregon |
| 61 | George A. Scanlan | 77 | Head | — | Illinois |
| 62 | Cora S. Scanlan | 72 | Wife | — | Ohio |
| 63 | Gordon M. Scanlan | 30 | Son | Truck Driver | Oregon |
| 64 | Ronald S. Scanlan | 28 | Son | Bucks | Oregon |
| 65 | Clarence Rowley | 40 | Head | Owner | Michigan |
| 66 | Edmund M. Fletcher | 41 | Head | Loader | Wisconsin |
| 67 | Juanita Fletcher | 31 | Wife | — | Arkansas |
| 68 | Annette R. Fletcher | 10 | Daughter | — | Idaho |
| 69 | Patricia Fletcher | 7 | Daughter | — | Oregon |
| 70 | Merle F. Fletcher | 5 | Daughter | — | Idaho |
| 71 | Sally Fletcher | 2 | Daughter | — | Oregon |
| 72 | Harry Ayers | 72 | Head | Owner | Ohio |
| 73 | Mattie G. Ayers | 73 | Wife | — | Missouri |
| 75 | Mary E. Clark THIS PERSON | 52 | Head | — | Nebraska |
| 76 | Kenneth L. Clark | 19 | Son | Operator | Oregon |
| 77 | William M. Clark | 23 | Son | Assistant Operator | Oregon |
| 78 | Elsie Clark | 16 | Daughter | Assistant Librarian | Oregon |
| 79 | Louise Clark | 14 | Daughter | — | Oregon |
| 80 | Nadine Clark | 12 | Daughter | — | Oregon |
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)