MR
Mary Roberts — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Clackamas-County, Oregon
Our Model Tree links this Mary Roberts across the 1920, 1930 and 1940 US Censuses in Clackamas-County, Oregon (XGBoost, ~Confirmed) — first a spouse (b.~1868), then head of a 3-person household.
Age 72
b. ~1868
Female
Spouse
Born: Ohio
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Clackamas-County, Oregon |
| Surname | Roberts |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 72 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | Precinct 3-21 |
| 1935 Residence (County) | Clackamas |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Township / Ward | Precinct 321 |
| Est. Birth Year | ~1868 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Joseph Roberts | Head | — | 74 | ~1866 |
| Guy Roberts | Son | — | 31 | ~1909 |
| Mary Roberts | Spouse | — | 72 | ~1868 |
Census Appearances
1920
Clackamas, Oregon
Spouse, age 53
Clackamas, Oregon · implied b. ~1867 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Roberts |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Ohio |
| Father's Birthplace | Switzerland |
| Mother's Birthplace | Switzerland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | French |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Clackamas, Oregon
Other, age 62
Clackamas, Oregon · implied b. ~1868 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Roberts |
| Given Name | Mary |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 62 |
| Marital Status | Married |
| Birthplace | Ohio |
| Age at First Marriage | 37 |
| Father's Birthplace | Switzerland |
| Mother's Birthplace | Switzerland |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Clackamas-County, Oregon
Spouse, age 72
Clackamas-County, Oregon · implied b. ~1868 — 3 household members
| Surname | Roberts |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 72 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | Precinct 3-21 |
| 1935 Residence (County) | Clackamas |
| Income (1939) | 0 |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
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 Roberts across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Roberts
Spouse · 1940 · age 72 · b. ~1868 · 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 — Clackamas-County, Oregon
Open full size
1940 US Federal Census — Clackamas-County, Oregon
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03354-00434)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | John Robertson | 31 | Head | Farmer | Kansas |
| 42 | Laura O. Robertson | 28 | Wife | — | Kansas |
| 43 | Marvin Robertson | 8 | Son | — | Kansas |
| 44 | Rollin Robertson | 6 | Son | — | Kansas |
| 45 | Connie Robertson | 1 | Daughter | — | Oregon |
| 46 | Thomas Wright | 80 | Head | Farmer | Germany |
| 47 | Charles Rogers | 59 | Head | Farmer | Missouri |
| 48 | Walter Scott | 65 | Lodger | — | New York |
| 49 | Louis Cabaniss | 70 | Head | Farmer | Iowa |
| 50 | Margaret Cabaniss | 64 | Wife | — | Germany |
| 51 | Frank Wilson | 35 | Head | Farmer | Oklahoma |
| 52 | Hazel O. Wilson | 26 | Wife | — | Oklahoma |
| 53 | Imogene Wilson | 7 | Daughter | — | Oklahoma |
| 54 | Walter Wilson | 5 | Son | — | Oklahoma |
| 55 | John Phillips | 44 | Head | Farmer | Pennsylvania |
| 56 | Clara R. Phillips | 51 | Wife | — | Denmark |
| 57 | Dennis D. St. Clair | 33 | Head | Farm Laborer | Oregon |
| 58 | Leo St. Clair | 45 | Brother | Cook | Oregon |
| 59 | George St. Clair | 40 | Brother | Farm Laborer | Oregon |
| 60 | William Mackenzie | 43 | Head | Farmer | Montana |
| 61 | Joseph Roberts | 74 | Head | — | Canada |
| 62 | Mary Roberts THIS PERSON | 72 | Wife | — | Ohio |
| 63 | Guy Roberts | 31 | Son | Farmer | Oregon |
| 64 | Herman Schmidt | 65 | Head | Farmer | Switzerland |
| 65 | Ludwine Schmidt | 59 | Wife | — | Germany |
| 66 | Leslie Schneider | 31 | Head | Farmer | Oregon |
| 67 | Ruby Schneider | 25 | Wife | — | South Dakota |
| 68 | Hill Rader | 45 | Head | Farm Laborer | Oregon |
| 69 | Elepha Rader | 39 | Wife | — | Oregon |
| 70 | Neil Rader | 15 | Son | — | Oregon |
| 71 | Clara Rader | 13 | Daughter | — | Oregon |
| 72 | Hill Jr. Rader | 11 | Son | — | Oregon |
| 73 | Dean Rader | 9 | Son | — | Oregon |
| 74 | Hope Ferrill | 62 | Head | — | Illinois |
| 75 | James Simpson | 64 | Brother | Painter | Illinois |
| 76 | John Simpson | 50 | Brother | Business Agent | Illinois |
| 77 | Lloyd Line | 38 | Head | Farmer | Nebraska |
| 78 | Jeannette Line | 46 | Wife | — | Kansas |
| 79 | Mary Jensen | 16 | Step-daughter | — | Wyoming |
| 80 | Helen Jensen | 15 | Step-daughter | — | Wyoming |
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)