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Joseph Johnston — 1940 US Census Record
Linked across censuses1940 United States Federal Census · St.-Louis-City-County, Missouri
Our Model Tree links this Joseph Johnston across the 1930 and 1940 US Censuses in St.-Louis-City-County, Missouri (XGBoost, ~Confirmed) — first a son (b.~1926), then head of a 12-person household.
Age 14
b. ~1926
Male
Son
Born: Missouri
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Louis-City-County, Missouri |
| Surname | Johnston |
| Given Name | Joseph Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | St. Louis City |
| 1935 Residence (County) | St. Louis City |
| Additional Details | |
| Occupation | Student |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Occupation | Student |
| Township / Ward | St Louis City |
| 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.
12 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Joseph | Age | Birth yr |
|---|---|---|---|---|
| Nadine Johnston | Daughter | — | 13 | ~1927 |
| David Johnston | Son | — | 2 | ~1938 |
| Margaret Johnston | Daughter | — | 19 | ~1921 |
| Doris Johnston | Daughter | — | 10 | ~1930 |
| Betty Johnston | Daughter | — | 7 | ~1933 |
| Jessie Johnston | Spouse | — | 36 | ~1904 |
| Gerald Johnston | Son | — | 8 | ~1932 |
| Helen Johnston | Daughter | — | 16 | ~1924 |
| Helen Johnston | Daughter | — | 17 | ~1923 |
| Joseph Johnston | Head | — | 42 | ~1898 |
| Alice Johnston | Daughter | — | 11 | ~1929 |
| Joseph Johnston | Son | — | 14 | ~1926 |
Census Appearances
1930
St Louis, …
Son, age 4
St Louis, Missouri · implied b. ~1926 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnston |
| Given Name | Joseph J Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Illinois |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1940
St.-Louis-City-County, Missouri
Son, age 14
St.-Louis-City-County, Missouri · implied b. ~1926 — 12 household members
| Surname | Johnston |
| Given Name | Joseph Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | St. Louis City |
| 1935 Residence (County) | St. Louis City |
| Occupation | Student |
| Highest Grade | 8 |
| 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 Joseph Johnston across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Joseph Johnston
Son · 1940 · age 14 · b. ~1926 · Missouri
★ You are viewing this record
Sibling
Doris Johnston
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gerald Johnston
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Johnston
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Johnston
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Betty Johnston
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
David Johnston
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Johnston
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Nadine Johnston
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Johnston
Sibling · 1940 · age 11
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-City-County, Missouri
Open full size
1940 US Federal Census — St.-Louis-City-County, Missouri
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02181-00393)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Robt E Murray | 40 | Head | Foreman | Iowa |
| 42 | Jessie (X) Murray | 42 | Wife | Housewife | Pennsylvania |
| 43 | Robt Jr Murray | 19 | Son | Student | Missouri |
| 44 | Howard Lee Murray | 17 | Son | Student | Missouri |
| 45 | Roy Wm Murray | 14 | Son | Student | Missouri |
| 46 | J. N. Whitis | 65 | Mother | Housewife | Pennsylvania |
| 47 | Emmet C Walton | 46 | Head | Foreman | Kentucky |
| 48 | Ann (X) Walton | 44 | Wife | Housewife | Missouri |
| 49 | Kenneth Walton | 6 | Son | Student | Missouri |
| 50 | Anna Schaefer | 66 | Mother | Housewife | Germany |
| 51 | Garfield Cox | 53 | Head | Switchman | Iowa |
| 52 | Cora (X) Cox | 52 | Wife | Housewife | Missouri |
| 53 | Marjorie Cox | 23 | Daughter | Student | Missouri |
| 54 | Doris Cox | 10 | Granddaughter | Student | Missouri |
| 55 | Joseph Johnston | 42 | Head | Lab. Helper | Missouri |
| 56 | Jessie (X) Johnston | 36 | Wife | Housewife | Illinois |
| 57 | Margaret Johnston | 19 | Daughter | Perforator | Missouri |
| 58 | Helen Johnston | 17 | Daughter | Housegirl | Missouri |
| 59 | Helen Johnston | 16 | Daughter | Housegirl | Missouri |
| 60 | Joseph Jr Johnston THIS PERSON | 14 | Son | Student | Missouri |
| 61 | Nadine Johnston | 13 | Daughter | Student | Missouri |
| 62 | Alice Johnston | 11 | Daughter | Student | Missouri |
| 63 | Doris Johnston | 10 | Daughter | Student | Missouri |
| 64 | Gerald Johnston | 8 | Son | Student | Missouri |
| 65 | Betty Johnston | 7 | Daughter | Student | Missouri |
| 66 | David Johnston | 2 | Son | — | Missouri |
| 67 | John W Flood | 62 | Head | Paper Hanger | Missouri |
| 68 | Bella N (X) Flood | 60 | Wife | Housewife | Missouri |
| 69 | John Jr. Flood | 25 | Son | Shipping Clerk | Missouri |
| 70 | Frank Eisenhart | 49 | Head | Moulder | Missouri |
| 71 | Mary (X) Eisenhart | 49 | Wife | Housewife | Missouri |
| 72 | Margaret Eisenhart | 25 | Daughter | Typing | Missouri |
| 73 | Fred Healey | 39 | Head | Mach. Oper. | Missouri |
| 74 | Helen (X) Healey | 33 | Wife | Housewife | Missouri |
| 75 | Arthur Healey | 15 | Son | Student | Missouri |
| 76 | Frank Angello | 29 | Head | Chauffeur | Missouri |
| 77 | Rose (X) Angello | 31 | Wife | Housewife | Missouri |
| 78 | Vincent Palazzolo | 14 | Son | Student | Missouri |
| 79 | Lorine Palazzolo | 10 | Daughter | Student | Missouri |
| 80 | Wm. O Steennerd | 68 | Head | Moulder | 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)