MR
Margaret Robertson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Johnson-County, Iowa
Our Model Tree links this Margaret Robertson across the 1930 and 1940 US Censuses in Johnson-County, Iowa (XGBoost, ~Confirmed) — first a spouse (b.~1905), then head of a 6-person household.
Age 35
b. ~1905
Female
Spouse
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Johnson-County, Iowa |
| Surname | Robertson |
| Given Name | Margaret |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Union Twp |
| 1935 Residence (County) | Johnson |
| Additional Details | |
| Occupation | none |
| Hours Worked | 90 |
| Income (1939) | 0 |
| Highest Grade | 7 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Union Twp |
| Est. Birth Year | ~1905 |
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 Margaret | Age | Birth yr |
|---|---|---|---|---|
| Don Robertson | Son | — | 9 | ~1931 |
| Margaret Robertson | Spouse | — | 35 | ~1905 |
| Marjorie Robertson | Daughter | — | 3 | ~1937 |
| Doris Robertson | Daughter | — | 5 | ~1935 |
| Leo Robertson | Head | — | 33 | ~1907 |
| Evelyn Robertson | Daughter | — | 7 | ~1933 |
Census Appearances
1930
Johnson, Iowa
Spouse, age 24
Johnson, Iowa · implied b. ~1906 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Robertson |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 21 |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Johnson-County, Iowa
Spouse, age 35
Johnson-County, Iowa · implied b. ~1905 — 6 household members
| Surname | Robertson |
| Given Name | Margaret |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Union Twp |
| 1935 Residence (County) | Johnson |
| Occupation | none |
| Hours Worked | 90 |
| Income (1939) | 0 |
| Highest Grade | 7 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 Margaret Robertson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Margaret Robertson
Spouse · 1940 · age 35 · b. ~1905 · 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 — Johnson-County, Iowa
Open full size
1940 US Federal Census — Johnson-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01171-00896)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Joseph Baker | 65 | helper | Laborer | Iowa |
| 42 | James Cahill | 51 | head | Farmer | Iowa |
| 43 | Gertrude Cahill | 45 | wife | None | Iowa |
| 44 | Vera Synar | 23 | helper | None | Iowa |
| 45 | Albert Waldsmith | 27 | helper | Farm Laborer | Iowa |
| 46 | Margaret Waldsmith | 26 | helper | None | Iowa |
| 47 | Frank Klein | 45 | head | Farmer | Iowa |
| 48 | Emma Klein | 37 | wife | None | Iowa |
| 49 | Carolyn Klein | 11 | daughter | None | Iowa |
| 50 | Clayton Klein | 9 | son | None | Iowa |
| 51 | Clinton Klein | 9 | son | None | Iowa |
| 52 | Phyllis Klein | 8 | daughter | None | Iowa |
| 53 | Dorothy Klein | 7 | daughter | None | Iowa |
| 54 | Jane Klein | 6 | daughter | None | Iowa |
| 55 | Frank Jr. Klein | 4 | son | None | Iowa |
| 56 | John Mead | 39 | head | Farmer | Iowa |
| 57 | Marie Mead | 32 | wife | None | Iowa |
| 58 | La Verne Mead | 12 | daughter | None | Iowa |
| 59 | Dean Mead | 10 | son | None | Iowa |
| 60 | Keith Mead | 5 | son | None | Iowa |
| 61 | Ronald Mead | 2 | son | None | Iowa |
| 62 | Paul Scheetz | 28 | head | Farmer | Iowa |
| 63 | Marguerite Scheetz | 26 | wife | None | Iowa |
| 64 | Paul Duane Scheetz | 5 | son | None | Iowa |
| 65 | Delores Scheetz | 4 | daughter | None | Iowa |
| 66 | Virginia Scheetz | 2 | daughter | None | Iowa |
| 67 | Leo Robertson | 33 | head | Farmer | Iowa |
| 68 | Margaret Robertson THIS PERSON | 35 | wife | None | Iowa |
| 69 | Don Robertson | 9 | son | None | Iowa |
| 70 | Evelyn Robertson | 7 | daughter | None | Iowa |
| 71 | Doris Robertson | 5 | daughter | None | Iowa |
| 72 | Marjorie Robertson | 3 | daughter | None | Iowa |
| 73 | Ralph Mead | 35 | head | Farmer | Iowa |
| 74 | Magdalene Mead | 27 | wife | None | Iowa |
| 75 | Mary Mead | 2 | daughter | None | Iowa |
| 76 | Daniel Mead | 1 | son | None | Iowa |
| 77 | Berent Ueen | 23 | helper | None | Iowa |
| 78 | W. William Curas | 75 | head | Farmer | Iowa |
| 79 | Ellen Curas | 74 | wife | None | Iowa |
| 80 | James Curas | 44 | son | None | 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)