MW
Mary Whitney — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cedar-County, Iowa
Our Model Tree links this Mary Whitney across the 1930 and 1940 US Censuses in Cedar-County, Iowa (XGBoost, ~Confirmed) — first a daughter (b.~1918), then head of a 5-person household.
Age 22
b. ~1918
Female
Daughter
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cedar-County, Iowa |
| Surname | Whitney |
| Given Name | Mary Jane |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Cedar Town |
| 1935 Residence (County) | Cedar |
| Additional Details | |
| Occupation | Public School |
| Industry | Teacher |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 600 |
| Highest Grade | C-2 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Public School |
| Township / Ward | Center Twp |
| Est. Birth Year | ~1918 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Lyle Whitney | Head | — | 47 | ~1893 |
| William Whitney | Son | — | 17 | ~1923 |
| Muriel Whitney | Spouse | — | 49 | ~1891 |
| Mary Whitney | Daughter | — | 22 | ~1918 |
| James Whitney | Son | — | 15 | ~1925 |
Census Appearances
1930
Johnson, Iowa
Daughter, age 12
Johnson, Iowa · implied b. ~1918 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Whitney |
| Given Name | Mary Jane |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Cedar-County, Iowa
Daughter, age 22
Cedar-County, Iowa · implied b. ~1918 — 5 household members
| Surname | Whitney |
| Given Name | Mary Jane |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Cedar Town |
| 1935 Residence (County) | Cedar |
| Occupation | Public School |
| Industry | Teacher |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 600 |
| Highest Grade | C-2 |
| 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 Whitney across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Whitney
Daughter · 1940 · age 22 · b. ~1918 · Iowa
★ You are viewing this record
Sibling
James Whitney
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Whitney
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Cedar-County, Iowa
Open full size
1940 US Federal Census — Cedar-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01145-00684)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ruth Schuman | 31 | Wife | Housewife | Missouri |
| 2 | Edward Schuman | 6 | Son | — | Iowa |
| 3 | Everett Schuman | 4 | Son | — | Iowa |
| 4 | Doris Schuman | 2 | Daughter | — | Iowa |
| 5 | Emmett Schuman | 1 | Son | — | Iowa |
| 6 | Elmer Schuman | 0 | Son | — | Iowa |
| 7 | Otis Wagaman | 45 | Head | Farmer | Iowa |
| 8 | Margaret Wagaman | 42 | Wife | Housewife | Iowa |
| 9 | Lyle Wagaman | 18 | Son | — | Iowa |
| 10 | James Wagaman | 14 | Son | — | Iowa |
| 11 | Richard Wagaman | 12 | Son | — | Iowa |
| 12 | William Wagaman | 10 | Son | — | Iowa |
| 13 | Myron Wagaman | 8 | Son | — | Iowa |
| 14 | John Wagaman | 3 | Son | — | Iowa |
| 15 | Oscar Dahl | 35 | Head | Farmer | Iowa |
| 16 | Francis Dahl | 37 | Wife | Housewife | Iowa |
| 17 | Carol Jo Ann Dahl | 2 | Daughter | — | Iowa |
| 18 | Emmett Ford | 55 | Head | Farmer | Iowa |
| 19 | Freda Ford | 47 | Wife | Housewife | Neb |
| 20 | Harold Ford | 27 | Son | — | Iowa |
| 21 | Evelyn Ford | 18 | Daughter | — | Iowa |
| 22 | Betty Mae Ford | 17 | Daughter | — | Iowa |
| 23 | Leola Ford | 14 | Daughter | — | Iowa |
| 24 | Lyle Whitney | 47 | Head | Farmer | Iowa |
| 25 | Muriel Whitney | 49 | Wife | Housewife | Iowa |
| 26 | Mary Jane Whitney THIS PERSON | 22 | Daughter | Public School | Iowa |
| 27 | William Whitney | 17 | Son | — | Iowa |
| 28 | James Whitney | 15 | Son | — | Iowa |
| 29 | Charles Bowman | 21 | Head | — | Missouri |
| 30 | Blanche Bowman | 19 | Wife | — | Iowa |
| 31 | Walter Shaffer | 67 | Head | Farmer | Iowa |
| 32 | Hattie Shaffer | 68 | Wife | Housewife | Iowa |
| 33 | Frank Lausen | 47 | Head | Farmer | Iowa |
| 34 | Alma Lausen | 46 | Wife | Housewife | Iowa |
| 35 | Lois Lausen | 20 | Daughter | — | Iowa |
| 36 | Howard Lausen | 19 | Son | Farm Labor | Iowa |
| 37 | Virgil Swailes | 24 | Head | Farm Labor | Iowa |
| 38 | Velma Swailes | 21 | Wife | Housewife | Iowa |
| 39 | Barbara Swailes | 2 | Daughter | — | Iowa |
| 40 | Roger Bolton | 35 | Head | Farmer | 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)