JC
John Cramer — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Jasper-County, Illinois
Our Model Tree links this John Cramer across the 1930 and 1940 US Censuses in Jasper-County, Illinois (XGBoost, ~Confirmed) — first a son (b.~1926), then head of a 6-person household.
Age 14
b. ~1926
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Jasper-County, Illinois |
| Surname | Cramer |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Grandville Township |
| 1935 Residence (County) | Jasper |
| Additional Details | |
| Occupation | farmer |
| Industry | farming |
| Class of Worker | PW |
| Hours Worked | 20 |
| Income (1939) | 5 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Farmer |
| Township / Ward | Grandville Township |
| Est. Birth Year | ~1926 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| William Cramer | Head | — | 44 | ~1896 |
| John Cramer | Son | — | 14 | ~1926 |
| Johanna Cramer | Daughter | — | 12 | ~1928 |
| Mae Cramer | Son | — | 16 | ~1924 |
| Amy Cramer | Spouse | — | 36 | ~1904 |
| Caroline Cramer | Daughter | — | 7 | ~1933 |
Census Appearances
1930
Jasper, Illinois
Son, age 4
Jasper, Illinois · implied b. ~1926 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cramer |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Can Read/Write | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Jasper-County, Illinois
Son, age 14
Jasper-County, Illinois · implied b. ~1926 — 6 household members
| Surname | Cramer |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Grandville Township |
| 1935 Residence (County) | Jasper |
| Occupation | farmer |
| Industry | farming |
| Class of Worker | PW |
| Hours Worked | 20 |
| Income (1939) | 5 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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.
Show:
This person
Anchor record
John Cramer
Son · 1940 · age 14 · b. ~1926 · Illinois
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Sibling
Mae Cramer
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Johanna Cramer
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Caroline Cramer
Sibling · 1940 · age 7
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 — Jasper-County, Illinois
Open full size
1940 US Federal Census — Jasper-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00815-00089)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Marjorie Decker | 15 | Daughter | House Work | Illinois |
| 2 | Jack Decker | 18 | Son | Laborer | Illinois |
| 3 | Warren Decker | 17 | Son | Laborer | Illinois |
| 4 | Albert Odell | 61 | Head | Farmer | Illinois |
| 5 | Lelara Odell | 55 | Wife | House Work | Illinois |
| 6 | Virgil Odell | 23 | Son | Labour | Illinois |
| 7 | Lucille Odell | 20 | Daughter | House Work | Illinois |
| 8 | June Odell | 17 | Daughter | — | Illinois |
| 9 | Betty Odell | 15 | Daughter | — | Illinois |
| 10 | Anna Odell | 12 | Daughter | — | Illinois |
| 11 | Dick Odell | 39 | Head | Wpa Shovel Work | Illinois |
| 12 | Beulah Odell | 33 | Wife | — | Oklahoma |
| 13 | Wayne Odell | 5 | Son | — | Illinois |
| 14 | Dale Odell | 5 | Son | — | Illinois |
| 15 | Don Odell | 22 | Brother | Laborer | Illinois |
| 16 | Beata Odell | 24 | Wife | — | Illinois |
| 17 | Lola Odell | 4 | Daughter | — | Illinois |
| 18 | William A. Cramer | 44 | Head | Farmer | Illinois |
| 19 | Amy R. Cramer | 36 | Wife | — | Illinois |
| 20 | Mae Cramer | 16 | Son | Farmer | Illinois |
| 21 | John Cramer THIS PERSON | 14 | Son | Farmer | Illinois |
| 22 | Johanna Cramer | 12 | Daughter | — | Illinois |
| 23 | Caroline Cramer | 7 | Daughter | — | Illinois |
| 24 | Hermie O. Cramer | 72 | Head | House Work | Illinois |
| 25 | Gary Matheny | 68 | Head | Farmer | Illinois |
| 26 | Elsie Matheny | 68 | Wife | — | Illinois |
| 27 | Gayle Hickox | 27 | Head | Farmer | Illinois |
| 28 | Marjorie Hickox | 27 | Wife | — | Illinois |
| 29 | Wendell Hickox | 7 | Son | — | Illinois |
| 30 | Earl Hickox | 5 | Son | — | Illinois |
| 31 | Phyllis Hickox | 3 | Daughter | — | Illinois |
| 32 | Carol Hickox | 1 | Daughter | — | Illinois |
| 33 | Oliver Hickox | 57 | Father | — | Indiana |
| 34 | Margaret Hickox | 76 | Mother | — | Illinois |
| 35 | Bruce A. Cramer | 36 | Head | Farmer | Illinois |
| 36 | Ethel Cramer | 38 | Wife | — | Illinois |
| 37 | Carolyn J. Cramer | 9 | Daughter | — | Illinois |
| 38 | Eugene Cramer | 7 | Son | — | Illinois |
| 39 | Wiley J. Decker | 59 | Head | Farmer | Illinois |
| 40 | Florence Decker | 53 | Wife | — | Illinois |
Related Census Records
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)