HJ
Helen Johnston — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Helen Johnston across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1897), then head of a 4-person household.
Age 43
b. ~1897
Female
Spouse
Born: Scotland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Johnston |
| Given Name | Helen |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Same Place |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
| Township / Ward | Chicago |
| Est. Birth Year | ~1897 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Helen | Age | Birth yr |
|---|---|---|---|---|
| John Johnston | Head | — | 46 | ~1894 |
| Grace Johnston | Daughter | — | 23 | ~1917 |
| Violet Johnston | Daughter | — | 21 | ~1919 |
| Helen Johnston | Spouse | — | 43 | ~1897 |
Census Appearances
1920
Cook, Illinois
Spouse, age 23
Cook, Illinois · implied b. ~1897 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnston |
| Given Name | Helen |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Married |
| Birthplace | Scotland |
| Year of Immigration | 1911 |
| Naturalization Status | Alien |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Scotch |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1930
Cook, Illinois
Spouse, age 33
Cook, Illinois · implied b. ~1897 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnston |
| Given Name | Helen |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Scotland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1924 |
| Age at First Marriage | 20 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1940
Cook-County, Illinois
Spouse, age 43
Cook-County, Illinois · implied b. ~1897 — 4 household members
| Surname | Johnston |
| Given Name | Helen |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Income (1939) | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Same Place |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
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 Helen Johnston across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Helen Johnston
Spouse · 1940 · age 43 · b. ~1897 · Illinois
★ 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 — Cook-County, Illinois
Open full size
1940 US Federal Census — Cook-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00954-00675)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Julia Yucik | 34 | Lodger | Egg Handler | Illinois |
| 2 | Edward Aberholden | 40 | Lodger | Conductor | Illinois |
| 3 | Ann Aberholden | 36 | Wife | Egg Handler | Illinois |
| 4 | Edward Aberholden | 13 | Son | — | Illinois |
| 5 | Mary Ann Aberholden | 8 | Daughter | — | Illinois |
| 6 | Walter J. Gronert | 58 | Head | Motorman | Wisconsin |
| 7 | Anna Gronert | 54 | Wife | — | Maryland |
| 8 | Marie Gronert | 21 | Daughter | — | Illinois |
| 9 | Anna Gronert | 20 | Daughter | Typist | Illinois |
| 10 | August H. Witte | 71 | Head | Proprietor | Illinois |
| 11 | Florence Witte | 43 | Daughter | Beauty Specialist | Illinois |
| 12 | John Kingsland | 56 | Head | Manager | Australia |
| 13 | Theresa Kingsland | 53 | Wife | — | Illinois |
| 14 | Peter J. Baum | 45 | Head | Broker | Illinois |
| 15 | Frances Baum | 40 | Wife | — | Illinois |
| 16 | Howard P. Baum | 13 | Son | — | Illinois |
| 17 | John A. Johnston | 46 | Head | Supervisor | Scotland |
| 18 | Helen Johnston THIS PERSON | 43 | Wife | — | Scotland |
| 19 | Grace Johnston | 23 | Daughter | — | Illinois |
| 20 | Violet Johnston | 21 | Daughter | — | Illinois |
| 21 | Charles Ruppman | 24 | Head | Price Clerk | New York |
| 22 | Eleanore Ruppman | 25 | Wife | Secretary | Illinois |
| 23 | Charles Ruppman | 0 | Son | Secretary | Illinois |
| 24 | Mary Van Adman | 64 | Head | — | Ohio |
| 25 | Alice Van Adman | 41 | Son | Proprietor | Illinois |
| 26 | Roy Hammerquist | 27 | Head | Salesman | Illinois |
| 27 | Esther Hammerquist | 26 | Wife | — | Illinois |
| 28 | Albert J. Wolf | 55 | Head | Fireman | Illinois |
| 29 | Alvira Wolf | 60 | Wife | — | Germany |
| 30 | Halbert D. Miller | 69 | Head | Guard | England |
| 31 | Elizabeth Miller | 70 | Wife | — | England |
| 32 | Grace Miller | 36 | Daughter | Stenographer | Illinois |
| 33 | James W. Keller | 26 | Head | Mechanic | Illinois |
| 34 | Helen Keller | 24 | Wife | — | Illinois |
| 35 | Billy Jean Keller | 2 | Daughter | — | Illinois |
| 36 | Daniel Keller | 52 | Head | Foreman | Illinois |
| 37 | Muriel Keller | 48 | Wife | — | Illinois |
| 38 | Daniel Havin | 57 | Head | Painter | Illinois |
| 39 | Katherine Havin | 55 | Wife | — | Illinois |
| 40 | Edward Havin | 23 | Son | Packer | Illinois |
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)