JC
John Cramer — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Wright-County, Iowa
Our Model Tree links this John Cramer across the 1930 and 1940 US Censuses in Wright-County, Iowa (XGBoost, ~Confirmed) — first a head (b.~1889), then head of a 5-person household.
Age 51
b. ~1889
Male
Head
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Wright-County, Iowa |
| Surname | Cramer |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Lincoln Township |
| 1935 Residence (County) | Wright |
| Additional Details | |
| Occupation | Farm |
| Industry | OA |
| Class of Worker | 70 |
| Highest Grade | 8 |
| 1935 Residence | 60 |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Farm |
| Township / Ward | Lincoln Township |
| Est. Birth Year | ~1889 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Walter Cramer | Son | — | 19 | ~1921 |
| Warren Cramer | Son | — | 19 | ~1921 |
| Genevieve Cramer | Daughter | — | 22 | ~1918 |
| John Cramer | Head | — | 51 | ~1889 |
| Grace Cramer | Spouse | — | 41 | ~1899 |
Census Appearances
1930
Wright, Iowa
Other, age 41
Wright, Iowa · implied b. ~1889 — 40 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cramer |
| Given Name | John |
| Relationship to Head | O |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 27 |
| Father's Birthplace | Germany |
| Mother's Birthplace | New York |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | O |
| Can Read/Write | Yes |
| Radio Set | R |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Wright-County, Iowa
Head, age 51
Wright-County, Iowa · implied b. ~1889 — 5 household members
| Surname | Cramer |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Lincoln Township |
| 1935 Residence (County) | Wright |
| Occupation | Farm |
| Industry | OA |
| Class of Worker | 70 |
| Highest Grade | 8 |
| 1935 Residence | 60 |
| 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 John Cramer across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Cramer
Head · 1940 · age 51 · b. ~1889 · 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 — Wright-County, Iowa
Open full size
1940 US Federal Census — Wright-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01217-00856)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Ethel Marshall | 44 | Wife | — | Iowa |
| 42 | Robert Marshall | 19 | Son | Farm | Iowa |
| 43 | Daryl Marshall | 17 | Son | Farm | Iowa |
| 44 | Maxine Marshall | 15 | Daughter | No | Iowa |
| 45 | Elizabeth Marshall | 13 | Daughter | No | Iowa |
| 46 | Theresa Marshall | 11 | Daughter | No | Iowa |
| 47 | Ruth Marshall | 9 | Son | No | Iowa |
| 48 | Mary Ann Marshall | 7 | Daughter | No | Iowa |
| 49 | Ines Marshall | 3 | Daughter | No | Iowa |
| 50 | Phyllis Marshall | 1 | Daughter | No | Iowa |
| 51 | Rush Marshall | 83 | Father | Farm | Pennsylvania |
| 52 | Roy Woodley | 59 | Head | Farm | Iowa |
| 53 | Carrie Woodley | 57 | Wife | No | Ohio |
| 54 | Clair Woodley | 29 | Son | Farm | Iowa |
| 55 | Lorene La Barr | 25 | Hired girl | Private Family | Iowa |
| 56 | Kenneth Reeden | 31 | Head | Farm | Iowa |
| 57 | Ruth Reeden | 25 | Wife | No | Iowa |
| 58 | Howard Reeden | 5 | Son | — | Iowa |
| 59 | Richard Reeden | 4 | Son | — | Iowa |
| 60 | Tom Finn | 74 | Head | Farm | New York |
| 61 | Ella Finn | 69 | Wife | No | Iowa |
| 62 | Kenneth Tillman | 33 | Head | Farm | Iowa |
| 63 | Hazel Tillman | 31 | Wife | No | Iowa |
| 64 | Joane Tillman | 6 | Daughter | — | Iowa |
| 65 | Jerry Tillman | 4 | Son | — | Iowa |
| 66 | Ray Warner | 27 | Hired man | Farm | Missouri |
| 67 | Ralph Hansen | 35 | Head | Farm | Iowa |
| 68 | Edna Hansen | 25 | Wife | No | Iowa |
| 69 | Charlene Hansen | 3 | Daughter | — | Iowa |
| 70 | John Cramer THIS PERSON | 51 | Head | Farm | Iowa |
| 71 | Grace Cramer | 41 | Wife | No | Iowa |
| 72 | Genevieve Cramer | 22 | Daughter | No | Iowa |
| 73 | Warren Cramer | 19 | Son | Farm | Iowa |
| 74 | Walter Cramer | 19 | Son | Farm | Iowa |
| 75 | Alfred Heins | 28 | Head | Farm | Iowa |
| 76 | Francis Heins | 19 | Wife | No | Iowa |
| 77 | Alvena Heins | 2 | Daughter | — | Iowa |
| 78 | James Babcock | 38 | Head | Farm Highway | Iowa |
| 79 | Erma Babcock | 39 | Wife | No | Iowa |
| 80 | Keith Babcock | 15 | Son | Farm | 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)