JC
John Cramer — 1940 US Census Record
Model Tree available1940 United States Federal Census · St.-Louis-City-County, Missouri
Our Model Tree links this John Cramer across the 1920, 1930 and 1940 US Censuses in St.-Louis-City-County, Missouri (XGBoost, ~Confirmed), with identified parents Harry & Alice — first a head (b.~1909), then head of a 3-person household.
Age 31
b. ~1909
Male
Head
Born: Missouri
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Louis-City-County, Missouri |
| Surname | Cramer |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Missouri |
| 1935 Residence (City) | St Louis City |
| 1935 Residence (County) | St Louis City |
| Additional Details | |
| Occupation | Motor Assembler |
| Industry | Electric Manufacturing Co |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1400 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Occupation | Motor Assembler |
| Township / Ward | St Louis City |
| Est. Birth Year | ~1909 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Ruth Cramer | Spouse | — | 28 | ~1912 |
| John Cramer | Head | — | 31 | ~1909 |
| John Cramer | Son | — | 5 | ~1935 |
Census Appearances
1920
St Louis, …
Son, age 11
St Louis, Missouri · implied b. ~1909 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Creamer |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1930
St Louis, …
Son, age 21
St Louis, Missouri · implied b. ~1909 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Creamer |
| Given Name | John S. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Occupation | Plumber |
| Industry | Plumbing Co. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1940
St.-Louis-City-County, Missouri
Head, age 31
St.-Louis-City-County, Missouri · implied b. ~1909 — 3 household members
| Surname | Cramer |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Missouri |
| 1935 Residence (City) | St Louis City |
| 1935 Residence (County) | St Louis City |
| Occupation | Motor Assembler |
| Industry | Electric Manufacturing Co |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1400 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
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 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Harry Creamer (~0.92 confidence) and mother Alice Creamer (~0.92 confidence) and mother Mary Creamer (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Harry Creamer
b. ~1879
Source father
● Household
· direct · ~0.92
Mother
Alice Creamer
b. ~1882
Source mother
● Household
· direct · ~0.92
Mother
Mary Creamer
b. ~1888
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Cramer
Head · 1940 · age 31 · b. ~1909 · Missouri
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — St.-Louis-City-County, Missouri
Open full size
1940 US Federal Census — St.-Louis-City-County, Missouri
Page Contents
30 people indexed on this census page (nara:1940:m-t0627-02203-00947)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Leroy Branum | 33 | Head | Salesman | Illinois |
| 42 | Georgia Branum | 29 | Wife | Cashier | Tennessee |
| 43 | Nellie S Vaughn | 31 | Head | Teacher | Missouri |
| 44 | Estelle Vaughn | 28 | Sister | Social Service Worker | Missouri |
| 45 | Esther June Vaughn | 5 | Daughter | — | Missouri |
| 46 | John P Sherman | 39 | Head | Waiter | Texas |
| 47 | Anna M Sherman | 37 | Wife | — | Texas |
| 48 | Edna Sue Sherman | 2 | Daughter | — | Texas |
| 49 | Maccie Jones | 50 | Head | Manager | Missouri |
| 50 | George Summers | 46 | Nephew | Clerk | Missouri |
| 51 | Lee Summers | 46 | Niece | — | Missouri |
| 52 | Rosalyn Alberti | 4 | Granddaughter | — | Missouri |
| 53 | Laura Walker | 68 | Head | — | Missouri |
| 54 | Vincent Ryan | 29 | Head | Clerk | Missouri |
| 55 | Maxine Ryan | 23 | Wife | — | Illinois |
| 56 | Margaret M Ryan | 3 | Daughter | — | Missouri |
| 57 | Lewis W Smith | 45 | Head | Mechanic | Missouri |
| 58 | Evelyn Smith | 45 | Wife | Saleslady | Tennessee |
| 59 | Milton Smith | 48 | Head | Mechanic | Arkansas |
| 60 | Mora L Smith | 46 | Wife | — | Arkansas |
| 61 | James W Smith | 12 | Son | — | Missouri |
| 62 | Lily Ambur | 45 | Head | Silk Spotter | Arkansas |
| 63 | Katherine Johnson | 75 | Mother | — | Illinois |
| 64 | John Cramer THIS PERSON | 31 | Head | Motor Assembler | Missouri |
| 65 | Ruth Cramer | 28 | Wife | — | Missouri |
| 66 | John Jr Cramer | 5 | Son | — | Missouri |
| 67 | Robert Hohman | 41 | Head | Attendant | Kansas |
| 68 | Celeste Hohman | 34 | Wife | — | Illinois |
| 69 | Thomas Mcallister | 27 | Head | Laborer | Missouri |
| 70 | Jane Mcallister | 25 | Wife | — | Missouri |
Pedigree Summary
John
Gen 1 · 3 parents
~0.92
Max depth 4 (1900–1950 window)
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)