RJ
Ruth Johnston — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Wayne-County, Michigan
Our Model Tree links this Ruth Johnston across the 1930 and 1940 US Censuses in Wayne-County, Michigan (XGBoost, ~Confirmed) — first a daughter (b.~1921), then head of a 9-person household.
Age 19
b. ~1921
Female
Daughter
Born: Michigan
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Wayne-County, Michigan |
| Surname | Johnston |
| Given Name | Ruth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Detroit City |
| 1935 Residence (County) | Wayne |
| Additional Details | |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Township / Ward | Detroit City |
| Est. Birth Year | ~1921 |
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 Ruth | Age | Birth yr |
|---|---|---|---|---|
| Ella Johnston | Spouse | — | 56 | ~1884 |
| Robert Johnston | Son | — | 24 | ~1916 |
| George Johnston | Head | — | 63 | ~1877 |
| Ruth Johnston | Daughter | — | 19 | ~1921 |
| Fredrick Johnston | Son | — | 16 | ~1924 |
| Margaret Johnston | Daughter | — | 17 | ~1923 |
| Wesley Johnston | Son | — | 12 | ~1928 |
| Evelyn Johnston | Daughter | — | 20 | ~1920 |
| Doris Johnston | Son | — | 14 | ~1926 |
Census Appearances
1930
Wayne, Michigan
Daughter, age 9
Wayne, Michigan · implied b. ~1921 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnston |
| Given Name | Ruth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Kansas |
| Can Read/Write | Yes |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Wayne-County, Michigan
Daughter, age 19
Wayne-County, Michigan · implied b. ~1921 — 9 household members
| Surname | Johnston |
| Given Name | Ruth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Detroit City |
| 1935 Residence (County) | Wayne |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
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 Ruth Johnston across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Ruth Johnston
Daughter · 1940 · age 19 · b. ~1921 · Michigan
★ You are viewing this record
Sibling
Fredrick Johnston
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Johnston
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Doris Johnston
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Johnston
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Evelyn Johnston
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Wesley Johnston
Sibling · 1940 · age 12
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 — Wayne-County, Michigan
Open full size
1940 US Federal Census — Wayne-County, Michigan
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01855-00535)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Thomas Dinsmore | 7 | Son | — | Michigan |
| 2 | Addie B. Cole | 76 | Mother-in-law | — | Michigan |
| 3 | George Johnston | 63 | Head | Carpenter | Canada English |
| 4 | Ella Johnston | 56 | Wife | — | Canada English |
| 5 | Robert Johnston | 24 | Son | Laborer | Canada English |
| 6 | Evelyn Johnston | 20 | Daughter | — | Michigan |
| 7 | Ruth Johnston THIS PERSON | 19 | Daughter | — | Michigan |
| 8 | Margaret Johnston | 17 | Daughter | — | Michigan |
| 9 | Fredrick Johnston | 16 | Son | — | Michigan |
| 10 | Doris Johnston | 14 | Son | — | Michigan |
| 11 | Wesley Johnston | 12 | Son | — | Michigan |
| 12 | Milton E. White | 46 | Head | Labor | Indiana |
| 13 | Edith White | 45 | Wife | Teacher | Illinois |
| 14 | Albert Moynahan | 36 | Head | Stock Handler | Canada English |
| 15 | Sylvia Moynahan | 39 | Wife | — | Canada English |
| 16 | Edward Porter | 37 | Head | Police City | Minnesota |
| 17 | Marie Porter | 36 | Wife | — | Ohio |
| 18 | John Porter | 13 | Son | — | Michigan |
| 19 | Robert Porter | 10 | Son | — | Michigan |
| 20 | Mary Margaret Porter | 8 | Daughter | — | Michigan |
| 21 | Barbara Lou Porter | 7 | Daughter | — | Michigan |
| 22 | Byron Porter | 3 | Son | — | Michigan |
| 23 | Bert Larson | 29 | Brother-in-law | Machine Operator | Ohio |
| 24 | Cecelia Larson | 27 | Sister-in-law | Bench Worker | Ohio |
| 25 | Theodore Lacasse | 32 | Head | Labor | Michigan |
| 26 | Dorothy Lacasse | 31 | Wife | — | Michigan |
| 27 | Monole Lacasse | 7 | Daughter | — | Michigan |
| 28 | Barbara Ann Lacasse | 3 | Daughter | — | Michigan |
| 29 | Charles Alexander | 65 | Head | — | Ohio |
| 30 | Louise Alexander | 51 | Wife | — | Michigan |
| 31 | Roy G. Alexander | 25 | Son | Truck Driver | Michigan |
| 32 | Charles A. Alexander | 21 | Son | Truck Driver | Michigan |
| 33 | Alice Edith Alexander | 53 | Sister-in-law | — | Michigan |
| 34 | William O'Dell | 42 | Head | City Fireman | Michigan |
| 35 | Anna O'Dell | 43 | Wife | — | Canada English |
| 36 | Sylvia O'Dell | 25 | Daughter | — | Michigan |
| 37 | Gale O'Dell | 12 | Son | — | Michigan |
| 38 | Darold O'Dell | 10 | Son | — | Michigan |
| 39 | Leonard O'Dell | 7 | Son | — | Michigan |
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)