MJ
Marjorie Jones — 1940 US Census Record
Linked across censuses1940 United States Federal Census · St.-Louis-County, Missouri
Our Model Tree links this Marjorie Jones across the 1930 and 1940 US Censuses in St.-Louis-County, Missouri (XGBoost, ~Confirmed) — first a daughter (b.~1923), then head of a 7-person household.
Age 17
b. ~1923
Female
Daughter
Born: Missouri
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Louis-County, Missouri |
| Surname | Jones |
| Given Name | Marjorie |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | Normandy Township |
| 1935 Residence (County) | St. Louis |
| Additional Details | |
| Industry | 0 |
| Highest Grade | H-3 |
| 1935 Residence | Same place |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Township / Ward | Normandy Township |
| 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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Marjorie | Age | Birth yr |
|---|---|---|---|---|
| Jack Gumma | Son | — | 4 | ~1936 |
| Theodore Gumma | Head | — | 34 | ~1906 |
| Paul Jones | Son | — | 14 | ~1926 |
| Grace Gumma | Spouse | — | 26 | ~1914 |
| Carl Gumma | Son | — | 1 | ~1939 |
| Marjorie Jones | Daughter | — | 17 | ~1923 |
| Grace Geeters | Other | — | 21 | ~1919 |
Census Appearances
1930
St Louis, …
Daughter, age 7
St Louis, Missouri · implied b. ~1923 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jones |
| Given Name | Marjorie L. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1940
St.-Louis-County, Missouri
Daughter, age 17
St.-Louis-County, Missouri · implied b. ~1923 — 7 household members
| Surname | Jones |
| Given Name | Marjorie |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | Normandy Township |
| 1935 Residence (County) | St. Louis |
| Industry | 0 |
| Highest Grade | H-3 |
| 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 Marjorie Jones across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Marjorie Jones
Daughter · 1940 · age 17 · b. ~1923 · Missouri
★ You are viewing this record
Sibling
Jack Gumma
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Carl Gumma
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Paul Jones
Sibling · 1940 · age 14
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 — St.-Louis-County, Missouri
Open full size
1940 US Federal Census — St.-Louis-County, Missouri
Page Contents
24 people indexed on this census page (nara:1940:m-t0627-02153-00600)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Laura Craft | 6 | Daughter | — | Missouri |
| 2 | Cora Hawkins | 50 | Mother-in-law | — | Missouri |
| 3 | Hammond Bullinger | 31 | Head | Machine Operator | Missouri |
| 4 | Mary Bullinger | 34 | Wife | — | Missouri |
| 5 | Paul Bullinger | 24 | Brother | Connector In Motor Dept. | Missouri |
| 6 | Everett Allen | 50 | Head | Truck Driver | Missouri |
| 7 | Margaret Allen | 51 | Wife | — | Missouri |
| 8 | Theodore Gumma | 34 | Head | Transformer Winder | Missouri |
| 9 | Grace Gumma | 26 | Wife | — | Missouri |
| 10 | Jack Gumma | 4 | Son | — | Missouri |
| 11 | Carl Gumma | 1 | Son | — | Missouri |
| 12 | Grace Geeters | 21 | Niece | Stator Winder | Missouri |
| 13 | Marjorie Jones THIS PERSON | 17 | Daughter | — | Missouri |
| 14 | Paul Jones | 14 | Son | — | Missouri |
| 15 | Michael Finn | 53 | Head | Maintenance Man | Northern Ireland |
| 16 | Katherine Finn | 53 | Wife | — | Missouri |
| 17 | Helen Finn | 13 | Daughter | — | Missouri |
| 18 | Rudolf Hillebrand | 28 | Head | Section Hand | Missouri |
| 19 | Martha Hillebrand | 20 | Wife | — | Missouri |
| 20 | Arlene Hillebrand | 2 | Daughter | — | Missouri |
| 21 | Robert Hillebrand | 0 | Son | — | Missouri |
| 22 | Elmer Polkinghorn | 29 | Head | Motor Bench Hand | Missouri |
| 23 | Marjorie Polkinghorn | 19 | Wife | — | Missouri |
| 24 | Donald Polkinghorn | 3 | Son | — | Missouri |
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)