LJ
Lilly Johnson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Clay-County, Iowa
Our Model Tree links this Lilly Johnson across the 1930 and 1940 US Censuses in Clay-County, Iowa (XGBoost, ~Confirmed) — first a daughter (b.~1930), then head of a 10-person household.
Age 10
b. ~1930
Female
Daughter
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Clay-County, Iowa |
| Surname | Johnson |
| Given Name | Lilly |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Spencer City |
| 1935 Residence (County) | Clay |
| Additional Details | |
| Highest Grade | 4 |
| 1935 Residence | Same Place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Spencer City |
| Est. Birth Year | ~1930 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Lilly | Age | Birth yr |
|---|---|---|---|---|
| Jack Johnson | Son | — | 12 | ~1928 |
| Joyce Johnson | Daughter | — | 2 | ~1938 |
| James Johnson | Son | — | 8 | ~1932 |
| Maggie Crouse | Other | — | 52 | ~1888 |
| Mabel Johnson | Spouse | — | 38 | ~1902 |
| Billy Johnson | Son | — | 13 | ~1927 |
| Perla Johnson | Daughter | — | 6 | ~1934 |
| Otto Johnson | Son | — | 3 | ~1937 |
| Ray Johnson | Head | — | 40 | ~1900 |
| Lilly Johnson | Daughter | — | 10 | ~1930 |
Census Appearances
1930
Clay, Iowa
Daughter, age
Clay, Iowa · implied b. ~1930 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Lillie E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Clay-County, Iowa
Daughter, age 10
Clay-County, Iowa · implied b. ~1930 — 10 household members
| Surname | Johnson |
| Given Name | Lilly |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Spencer City |
| 1935 Residence (County) | Clay |
| Highest Grade | 4 |
| 1935 Residence | Same Place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 Lilly Johnson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Lilly Johnson
Daughter · 1940 · age 10 · b. ~1930 · Iowa
★ You are viewing this record
Sibling
Joyce Johnson
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Billy Johnson
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Johnson
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Perla Johnson
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Otto Johnson
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jack Johnson
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 — Clay-County, Iowa
Open full size
1940 US Federal Census — Clay-County, Iowa
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01148-00757)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Burdette Lockey | 27 | son | Laborer | Iowa |
| 2 | Ray Johnson | 40 | Head | Truck Gardener | Iowa |
| 3 | Mabel Johnson | 38 | wife | — | Iowa |
| 4 | Billy Johnson | 13 | son | — | Iowa |
| 5 | Jack Johnson | 12 | son | — | Iowa |
| 6 | Lilly Johnson THIS PERSON | 10 | daughter | — | Iowa |
| 7 | James Johnson | 8 | son | — | Iowa |
| 8 | Perla Johnson | 6 | daughter | — | Iowa |
| 9 | Otto Johnson | 3 | son | — | Iowa |
| 10 | Joyce Johnson | 2 | daughter | — | Iowa |
| 11 | Maggie Crouse | 52 | maid | Maid | Iowa |
| 12 | Francis Gustaf | 27 | Head | Laborer | Iowa |
| 13 | Dorothy Gustaf | 27 | wife | — | Iowa |
| 14 | Geraldine Gustaf | 10 | daughter | — | Iowa |
| 15 | Betty Gustaf | 5 | daughter | — | Iowa |
| 16 | Jack Gustaf | 2 | son | — | Iowa |
| 17 | Larry Gustaf | 1 | son | — | Iowa |
| 18 | Lloyd Lockey | 24 | Head | Lineman | Iowa |
| 19 | Winona Lockey | 22 | wife | — | Iowa |
| 20 | Neal Nelson | 57 | Head | Proprietor | Illinois |
| 21 | Merle Nelson | 49 | wife | Proprietor | Iowa |
| 22 | Harry Patridge | 45 | Head | Operator | Iowa |
| 23 | Lillian Patridge | 42 | wife | — | Iowa |
| 24 | Earl Rose | 41 | Head | Foreman | Iowa |
| 25 | Gana Rose | 28 | wife | — | Iowa |
| 26 | Jeanette Rose | 5 | daughter | — | Iowa |
| 27 | Melvin Rose | 3 | son | — | Iowa |
| 28 | E. J. James | 57 | Head | Proprietor | Illinois |
| 29 | Mary James | 58 | wife | — | Illinois |
| 30 | Dan Trout | 57 | Head | — | Illinois |
| 31 | Maude Trout | 58 | wife | — | Iowa |
| 32 | Chester Trout | 18 | son | Deliveryman | Iowa |
| 33 | Harold Trout | 22 | son | — | Iowa |
| 34 | Elsie Nelson | 29 | daughter | — | Iowa |
| 35 | Viola Smoot | 15 | granddaughter | — | Iowa |
| 36 | Helen Nelson | 15 | daughter | — | Iowa |
| 37 | Byron Nelson | 50 | Head | Laborer | Iowa |
| 38 | Marie Nelson | 28 | wife | — | Iowa |
| 39 | Donald Nelson | 11 | son | — | Iowa |
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)