MR
Mary Robinson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Sac-County, Iowa
Our Model Tree links this Mary Robinson across the 1920, 1930 and 1940 US Censuses in Sac-County, Iowa (XGBoost, ~Confirmed) — first a spouse (b.~1866), then head of a 6-person household.
Age 74
b. ~1866
Female
Spouse
Born: Vermont
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Sac-County, Iowa |
| Surname | Robinson |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 74 |
| Marital Status | Married |
| Birthplace | Vermont |
| 1935 Residence (City) | Schaller |
| 1935 Residence (County) | Sac |
| Additional Details | |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Vermont |
| Birth Country | United States |
| Birthplace (normalized) | vermont |
| Township / Ward | Schaller |
| Est. Birth Year | ~1866 |
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 |
|---|---|---|---|---|
| Luella Tryon | Daughter | — | 35 | ~1905 |
| J Robinson | Head | — | 81 | ~1859 |
| Mary Tryon | Other | — | 10 | ~1930 |
| Edwin Fehlhaber | Other | — | 32 | ~1908 |
| Harry Tryon | Other | — | 9 | ~1931 |
| Mary Robinson | Spouse | — | 74 | ~1866 |
Census Appearances
1920
Sac, Iowa
Spouse, age 53
Sac, Iowa · implied b. ~1867 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Robinson |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Vermont |
| Father's Birthplace | New Hampshire |
| Mother's Birthplace | Vermont |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Vermont |
| Birth Country | United States |
| Birthplace (normalized) | vermont |
1930
Sac, Iowa
Other, age 64
Sac, Iowa · implied b. ~1866 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Robinson |
| Given Name | Mary H. |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 64 |
| Marital Status | Married |
| Birthplace | Vermont |
| Age at First Marriage | 28 |
| Father's Birthplace | New Hampshire |
| Mother's Birthplace | Vermont |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Vermont |
| Birth Country | United States |
| Birthplace (normalized) | vermont |
1940
Sac-County, Iowa
Spouse, age 74
Sac-County, Iowa · implied b. ~1866 — 6 household members
| Surname | Robinson |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 74 |
| Marital Status | Married |
| Birthplace | Vermont |
| 1935 Residence (City) | Schaller |
| 1935 Residence (County) | Sac |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Vermont |
| Birth Country | United States |
| Birthplace (normalized) | vermont |
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 Robinson 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 Robinson
Spouse · 1940 · age 74 · b. ~1866 · Iowa
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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 — Sac-County, Iowa
Open full size
1940 US Federal Census — Sac-County, Iowa
Page Contents
37 people indexed on this census page (nara:1940:m-t0627-01201-00556)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Thekla D. Schmidt | 24 | Wife | — | Iowa |
| 42 | Ralph Bond | 60 | Head | Common Laborer | Illinois |
| 43 | Adelaide C. Bond | 56 | Wife | — | Illinois |
| 44 | Mary A. Bond | 14 | Daughter | — | Iowa |
| 46 | Earl Knapp | 50 | Head | Midget | Kansas |
| 47 | C. Mack Knapp | 46 | Brother | Midget | Iowa |
| 48 | Ida Warren | 67 | Aunt | — | Missouri |
| 50 | Fred M. Jarvis | 41 | Head | Scale Inspector | Indiana |
| 51 | Elizabeth E. Jarvis | 28 | Wife | — | Iowa |
| 52 | Byford D. Jarvis | 4 | Son | — | Iowa |
| 53 | Joan Jarvis | 2 | Daughter | — | Iowa |
| 54 | R. J. Bennett | 56 | Head | Mechanic | Iowa |
| 55 | Nell E. Bennett | 39 | Wife | — | Iowa |
| 56 | Deane Bennett | 16 | Step son | Asst Bowling | Iowa |
| 57 | Ardith Bennett | 24 | Step daughter | — | S. Dak |
| 58 | Vernon Bennett | 24 | Nephew | Mechanic | Iowa |
| 59 | Delbert Smith | 31 | Lodger | Mechanic | Iowa |
| 60 | James E. Green | 68 | Head | Agent | Illinois |
| 61 | Clara M. Green | 62 | Wife | — | Illinois |
| 62 | Elizabeth D. Mccray | 70 | Head | — | Scotland |
| 63 | Mildred M. Mccray | 34 | Daughter | — | Iowa |
| 64 | Joan E. Mccray | 3 | Granddaughter | — | Iowa |
| 65 | Marian Mcnaughton | 56 | Head | Farm Laborer | Iowa |
| 66 | Florence Mcnaughton | 58 | Wife | — | Iowa |
| 67 | Charles H. Mcnaughton | 32 | Son | Common Laborer | Iowa |
| 68 | Alfred R. Pattison | 62 | Head | Farmer | Iowa |
| 69 | Mary J. Pattison | 65 | Wife | — | Iowa |
| 70 | Joseph F. Pattison | 42 | Son | Farmer | Iowa |
| 71 | Russell D. Pattison | 35 | Son | Farmer | Iowa |
| 73 | J. D. Robinson | 81 | Head | — | Minn |
| 74 | Mary Robinson THIS PERSON | 74 | Wife | — | Vermont |
| 75 | Luella M. Tryon | 35 | Daughter | Clerk | Iowa |
| 76 | Mary L. Tryon | 10 | Granddaughter | — | Iowa |
| 77 | Harry B. Tryon | 9 | Grandson | — | Iowa |
| 78 | Edwin W. Fehlhaber | 32 | Lodger | Printer | S. Dak |
| 79 | Aubrey Dandy | 31 | Head | Carpenter | Iowa |
| 80 | Wife Dandy | 28 | Wife | — | Iowa |
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)