EM
Eva Martin — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Washington-County, Iowa
Our Model Tree links this Eva Martin across the 1930 and 1940 US Censuses in Washington-County, Iowa (XGBoost, ~Confirmed) — first a spouse (b.~1884), then head of a 6-person household.
Age 56
b. ~1884
Female
Spouse
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Washington-County, Iowa |
| Surname | Martin |
| Given Name | Eva A. |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | 76 Twp. |
| 1935 Residence (County) | Washington |
| Additional Details | |
| Highest Grade | 8 |
| 1935 Residence | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | 76 Twp |
| Est. Birth Year | ~1884 |
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 Eva | Age | Birth yr |
|---|---|---|---|---|
| Eva Martin | Spouse | — | 56 | ~1884 |
| Jeanne Martin | Daughter | — | 21 | ~1919 |
| William Martin | Head | — | 52 | ~1888 |
| Bessie Martin | Daughter | — | 17 | ~1923 |
| Earl Martin | Son | — | 20 | ~1920 |
| Ruth Martin | Daughter | — | 15 | ~1925 |
Census Appearances
1930
Washington, Iowa
Other, age 46
Washington, Iowa · implied b. ~1884 — 44 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Eva A |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 27 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Ohio |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Washington-County, Iowa
Spouse, age 56
Washington-County, Iowa · implied b. ~1884 — 6 household members
| Surname | Martin |
| Given Name | Eva A. |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | 76 Twp. |
| 1935 Residence (County) | Washington |
| Highest Grade | 8 |
| 1935 Residence | Iowa |
| 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 Eva Martin across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Eva Martin
Spouse · 1940 · age 56 · b. ~1884 · 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 — Washington-County, Iowa
Open full size
1940 US Federal Census — Washington-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01211-00417)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Joanne M. Reed | 8 | daughter | — | Iowa |
| 42 | Rose Ellen Reed | 6 | daughter | — | Iowa |
| 43 | James W. Reed | 3 | son | — | Iowa |
| 44 | Edmund R. Reed | 1 | son | — | Iowa |
| 45 | F. E. Argenbright | 53 | Head | Farmer | Virginia |
| 46 | Ruby E. Argenbright | 49 | wife | — | Iowa |
| 47 | Ralph C. Romine | 44 | Head | Farmer | Iowa |
| 48 | Myrtle Romine | 45 | wife | — | Iowa |
| 49 | Violet Romine | 23 | daughter | — | Iowa |
| 50 | Arden Romine | 21 | son | Farmer | Iowa |
| 51 | Roger Romine | 14 | son | — | Iowa |
| 52 | Frank C. Mayer | 60 | Head | Farmer | Iowa |
| 53 | Martha Mayer | 52 | wife | — | Iowa |
| 54 | Roy Wotrich | 19 | Hired man | Laborer | Iowa |
| 55 | Binney K. Gretter | 38 | Head | Farmer | North Carolina |
| 56 | Edith Gretter | 37 | wife | — | Iowa |
| 57 | Betty M. Gretter | 17 | daughter | — | Iowa |
| 58 | Dorothy Gretter | 11 | daughter | — | Iowa |
| 59 | John Gretter | 8 | son | — | Iowa |
| 60 | H. T. Carrie | 57 | Head | Farmer | Iowa |
| 61 | Belva Carrie | 55 | wife | — | Iowa |
| 62 | James Lemley | 52 | Brother in law | Chore-Boy | Iowa |
| 63 | William J. Martin | 52 | Head | Farmer | Kansas |
| 64 | Eva A. Martin THIS PERSON | 56 | wife | — | Iowa |
| 65 | Jeanne Martin | 21 | daughter | Teacher | Iowa |
| 66 | Earl K. Martin | 20 | son | Farmer | Iowa |
| 67 | Bessie Martin | 17 | daughter | — | Iowa |
| 68 | Ruth Martin | 15 | daughter | — | Iowa |
| 69 | J. Victor Vogel | 41 | Head | Farmer | Iowa |
| 70 | Clara E. Vogel | 41 | wife | — | Iowa |
| 71 | Dolores B. Vogel | 19 | daughter | — | Iowa |
| 72 | Leon Vogel | 16 | son | — | Iowa |
| 73 | Eugene Vogel | 14 | son | — | Iowa |
| 74 | Dale Vogel | 8 | son | — | Iowa |
| 75 | Wayne Vogel | 5 | son | — | Iowa |
| 76 | Donna Vogel | 1 | daughter | — | Iowa |
| 77 | Everett Koch | 20 | Hired man | Laborer | Iowa |
| 78 | John D. Durst | 26 | Head | Trucker | Iowa |
| 79 | Maxine C. Durst | 23 | wife | — | Iowa |
| 80 | Nancy C. Durst | 3 | daughter | — | 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)