MC
Mary Curtis — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Wapello-County, Iowa
Our Model Tree links this Mary Curtis across the 1930 and 1940 US Censuses in Wapello-County, Iowa (XGBoost, ~Confirmed) — first a spouse (b.~1891), then head of a 8-person household.
Age 49
b. ~1891
Female
Spouse
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Wapello-County, Iowa |
| Surname | Curtis |
| Given Name | Mary O. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Pleasant Township |
| 1935 Residence (County) | Wapello County |
| Additional Details | |
| Occupation | Housewife |
| Industry | Own Home |
| Class of Worker | H |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Housewife |
| Township / Ward | Pleasant Township |
| Est. Birth Year | ~1891 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Helen Curtis | Daughter | — | 20 | ~1920 |
| Anna Curtis | Daughter | — | 27 | ~1913 |
| Mary Curtis | Daughter | — | 14 | ~1926 |
| William Curtis | Head | — | 51 | ~1889 |
| Ralph Curtis | Son | — | 12 | ~1928 |
| Raymond Curtis | Son | — | 18 | ~1922 |
| Max Curtis | Son | — | 16 | ~1924 |
| Mary Curtis | Spouse | — | 49 | ~1891 |
Census Appearances
1930
Wapello, Iowa
Other, age 37
Wapello, Iowa · implied b. ~1893 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Curtis |
| Given Name | Mary O |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 19 |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Wapello-County, Iowa
Spouse, age 49
Wapello-County, Iowa · implied b. ~1891 — 8 household members
| Surname | Curtis |
| Given Name | Mary O. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Pleasant Township |
| 1935 Residence (County) | Wapello County |
| Occupation | Housewife |
| Industry | Own Home |
| Class of Worker | H |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 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 Mary Curtis across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Curtis
Spouse · 1940 · age 49 · b. ~1891 · 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 — Wapello-County, Iowa
Open full size
1940 US Federal Census — Wapello-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01209-01155)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Vera M. Jeffery | 32 | Wife | Housewife | Illinois |
| 42 | Virginia E. Jeffery | 14 | Daughter | — | Iowa |
| 43 | Arnold E. Jeffery | 11 | Son | — | Iowa |
| 44 | Audrey C. Jeffery | 7 | Daughter | — | Iowa |
| 45 | Deloris D. Jeffery | 2 | Daughter | — | Iowa |
| 46 | Altam T. Giltner | 51 | Head | Farmer | Iowa |
| 47 | Carl E. Giltner | 22 | Son | — | Iowa |
| 48 | Everett G. Giltner | 28 | Head | Farmer | Iowa |
| 49 | Mary Alice Giltner | 31 | Wife | Housewife | Iowa |
| 50 | James N. Giltner | 12 | Son | — | Iowa |
| 51 | Harold Dan Catterson | 6 | Step son | — | Iowa |
| 52 | Willis D. Blanchard | 67 | Head | Farmer | Iowa |
| 53 | Nettie Blanchard | 68 | Wife | Housewife | Iowa |
| 54 | Helen L. Blanchard | 29 | Daughter | Housewife | Iowa |
| 55 | Charles A. Young | 55 | Head | Farmer | Missouri |
| 56 | Ethel V. Young | 51 | Wife | Housewife | Kansas |
| 57 | Charles A. Jr. Young | 16 | Son | Student | Iowa |
| 58 | Glenn E. Young | 14 | Son | Student | Iowa |
| 59 | Grant A. Lewis | 44 | Head | Farmer | Iowa |
| 60 | Effie Lewis | 40 | Wife | Housewife | Virginia |
| 61 | Ruth W. Lewis | 18 | Daughter | Student | Iowa |
| 62 | Patricia K. Lewis | 14 | Daughter | Student | Iowa |
| 63 | James E. Lewis | 12 | Son | — | Iowa |
| 64 | George D. Black | 62 | Head | Farmer | Iowa |
| 65 | Anna Black | 56 | Wife | Housewife | Iowa |
| 66 | Arthur M. Morris | 45 | Head | Farmer | Missouri |
| 67 | Ora M. Morris | 43 | Wife | Housewife | Illinois |
| 68 | Ernest E. Morris | 19 | Son | Farmer | Iowa |
| 69 | Robert A. Morris | 9 | Son | — | Iowa |
| 70 | Jessie M. Shelton | 42 | Head | Farmer | Iowa |
| 71 | William S. Curtis | 51 | Head | Farmer | Iowa |
| 72 | Mary O. Curtis THIS PERSON | 49 | Wife | Housewife | Iowa |
| 73 | Anna L. Curtis | 27 | Daughter | Housewife | Iowa |
| 74 | Helen O. Curtis | 20 | Daughter | Housewife | Iowa |
| 75 | Raymond L. Curtis | 18 | Son | Student | Iowa |
| 76 | Max L. Curtis | 16 | Son | Student | Iowa |
| 77 | Mary G. Curtis | 14 | Daughter | Student | Iowa |
| 78 | Ralph E. Curtis | 12 | Son | — | Iowa |
| 79 | Olen L. Mullikin | 25 | Head | Farmer | Missouri |
| 80 | P. Murle Mullikin | 26 | Wife | Housewife | 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)