JK
John Kramer — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Jefferson-County, Louisiana
Our Model Tree links this John Kramer across the 1930 and 1940 US Censuses in Jefferson-County, Louisiana (XGBoost, ~Confirmed) — first a son (b.~1923), then head of a 9-person household.
Age 17
b. ~1923
Male
Son
Born: Louisiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Jefferson-County, Louisiana |
| Surname | Kramer |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Louisiana |
| 1935 Residence (County) | Jefferson |
| Additional Details | |
| Occupation | 0 |
| Highest Grade | No 7 |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
| Occupation | 0 |
| Township / Ward | Harahan |
| Est. Birth Year | ~1923 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Elvinia Kramer | Daughter | — | 26 | ~1914 |
| Sophie Kramer | Daughter | — | 13 | ~1927 |
| Delphine Kramer | Daughter | — | 19 | ~1921 |
| Edward Kramer | Head | — | 54 | ~1886 |
| Peter Kramer | Son | — | 22 | ~1918 |
| John Kramer | Son | — | 17 | ~1923 |
| Charles Kramer | Son | — | 10 | ~1930 |
| Edward Kramer | Son | — | 30 | ~1910 |
| Caroline Kramer | Spouse | — | 50 | ~1890 |
Census Appearances
1930
Orleans, Louisiana
Son, age 7
Orleans, Louisiana · implied b. ~1923 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kramer |
| Given Name | John J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Louisiana |
| Father's Birthplace | Louisiana |
| Mother's Birthplace | Louisiana |
| Can Read/Write | Yes |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
1940
Jefferson-County, Louisiana
Son, age 17
Jefferson-County, Louisiana · implied b. ~1923 — 9 household members
| Surname | Kramer |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Louisiana |
| 1935 Residence (County) | Jefferson |
| Occupation | 0 |
| Highest Grade | No 7 |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
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 Kramer across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Kramer
Son · 1940 · age 17 · b. ~1923 · Louisiana
★ You are viewing this record
Sibling
Edward Kramer
Sibling · 1940 · age 30
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Peter Kramer
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Delphine Kramer
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elvinia Kramer
Sibling · 1940 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Sophie Kramer
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Kramer
Sibling · 1940 · age 10
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 — Jefferson-County, Louisiana
Open full size
1940 US Federal Census — Jefferson-County, Louisiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01407-00519)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Harry Allan | 4 | Son | — | Louisiana |
| 42 | Mary Nielman | 57 | Head | 0 | Louisiana |
| 43 | Wallace Trosclair | 66 | Head | — | Louisiana |
| 44 | Salidee Trosclair | 63 | Wife | — | Louisiana |
| 45 | Leveron, Adeilo Trosclair | 38 | Son-in-law | — | Louisiana |
| 46 | Emile Andeauf | 52 | Lodger | Odd Job Man | France |
| 47 | Jacob Joes | 54 | Head | Auditor | Arkansas |
| 48 | Ethel Joes | 54 | Wife | — | Arkansas |
| 49 | Anna Miller | 41 | Head | 72 | Louisiana |
| 50 | August Wahl | 53 | Head | Horse Trader | Louisiana |
| 51 | Edris Wahl | 51 | Wife | Dairy Operator | Louisiana |
| 52 | August Jr. Wahl | 33 | Son | Dairy Operator | Louisiana |
| 53 | Albertha Wahl | 20 | Daughter-in-law | — | Louisiana |
| 54 | Lilly Leonard | 75 | Mother-in-law | — | Louisiana |
| 55 | Elsie Gordon | 21 | Worker | Milker | Mississippi |
| 56 | Roland Wahl | 3 | Grand Son | — | Louisiana |
| 57 | Charles J. Jr. Border | 46 | Head | Dairy Operator | Louisiana |
| 58 | Rosalie Border | 40 | Wife | Dairy Operator | Louisiana |
| 59 | Charles Jr. Border | 18 | Son | Truck Driver | Louisiana |
| 60 | Katherine Border | 14 | Daughter | — | Louisiana |
| 61 | Edward L. Kramer | 54 | Head | 0 | Louisiana |
| 62 | Caroline Kramer | 50 | Wife | 48 | Louisiana |
| 63 | Edward Jr. Kramer | 30 | Son | 48 | Louisiana |
| 64 | Elvinia Kramer | 26 | Daughter | 48 | Louisiana |
| 65 | Peter Kramer | 22 | Son | 35 | Louisiana |
| 66 | Delphine Kramer | 19 | Daughter | 0 | Louisiana |
| 67 | John Kramer THIS PERSON | 17 | Son | 0 | Louisiana |
| 68 | Sophie Kramer | 13 | Daughter | — | Louisiana |
| 69 | Charles Kramer | 10 | Son | — | Louisiana |
| 70 | Forest Lemoine | 42 | Head | Construction Foreman | Louisiana |
| 71 | Ivy Lemoine | 30 | Wife | — | Louisiana |
| 72 | Fred Lemoine | 12 | Son | — | Louisiana |
| 73 | Evelyn Claudel | 22 | Sister-in-law | Dental Assistant | Louisiana |
| 74 | Alcide Gastram | 40 | Head | 42 | Louisiana |
| 75 | Elise Gastram | 39 | Wife | 0 | Louisiana |
| 76 | Jeanette Gastram | 15 | Daughter | 0 | Louisiana |
| 77 | Louis J. Glober | 43 | Head | Dairy Operator | Louisiana |
| 78 | Sophie Glober | 45 | Wife | Dairy Operator | Louisiana |
| 79 | Louis Jr. Glober | 18 | Son | — | Louisiana |
| 80 | Sidney Glober | 15 | Son | Milker | Louisiana |
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)