LJ
Lloyd Johnson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Livingston-County, Illinois
Our Model Tree links this Lloyd Johnson across the 1920, 1930 and 1940 US Censuses in Livingston-County, Illinois (XGBoost, ~Confirmed), with identified parents Martin & Martin — first a son (b.~1900), then head of a 4-person household.
Age 40
b. ~1900
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Livingston-County, Illinois |
| Surname | Johnson |
| Given Name | Lloyd |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Pontiac City |
| 1935 Residence (County) | Livingston |
| Additional Details | |
| Occupation | Superintendent agency wholesale |
| Class of Worker | PW |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Superintendent Agency Wholesale |
| Township / Ward | Pontiac City |
| Est. Birth Year | ~1900 |
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 Lloyd | Age | Birth yr |
|---|---|---|---|---|
| Martin Johnson | Head | — | 68 | ~1872 |
| Robert Hacelleaf | Other | — | 19 | ~1921 |
| Lloyd Johnson | Son | — | 40 | ~1900 |
| Christine Johnson | Spouse | — | 65 | ~1875 |
Census Appearances
1920
Livingston, Illinois
Son, age 19
Livingston, Illinois · implied b. ~1901 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Lloyd |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Iowa |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Livingston, Illinois
Son, age 30
Livingston, Illinois · implied b. ~1900 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Lloyd |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 23 |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Iowa |
| Occupation | Laborer |
| Industry | Gravel Road |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Livingston-County, Illinois
Son, age 40
Livingston-County, Illinois · implied b. ~1900 — 4 household members
| Surname | Johnson |
| Given Name | Lloyd |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Pontiac City |
| 1935 Residence (County) | Livingston |
| Occupation | Superintendent agency wholesale |
| Class of Worker | PW |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 Lloyd Johnson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Martin Johnson (~0.92 confidence) and father Martin Johnson (~0.92 confidence) and mother Christiana Johnson (~0.92 confidence) and father Martin Johnson (~0.92 confidence) and mother Christine Johnson (~0.92 confidence) and mother Christina Johnson (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Martin Johnson
b. ~1871
Source father
● Household
· direct · ~0.92
Father
Martin Johnson
b. ~1872
Source father
● Household
· direct · ~0.92
Mother
Christiana Johnson
b. ~1874
Source mother
● Household
· direct · ~0.92
Father
Martin Johnson
b. ~1874
Source father
● Household
· direct · ~0.92
Mother
Christine Johnson
b. ~1875
Source mother
● Household
· direct · ~0.92
Mother
Christina Johnson
b. ~1878
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Lloyd Johnson
Son · 1940 · age 40 · b. ~1900 · 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 — Livingston-County, Illinois
Open full size
1940 US Federal Census — Livingston-County, Illinois
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-00837-00895)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Mildred Key | 39 | Wife | — | Illinois |
| 42 | John H. Hughes | 50 | Head | Field Manager | Indiana |
| 43 | Coral Hughes | 48 | Wife | Stenographer | Indiana |
| 44 | Wayne G. Hughes | 23 | Son | Bookkeeper | Indiana |
| 45 | Evan Hughes | 19 | Son | — | Indiana |
| 46 | John Loughran | 38 | Head | Cutter | Scotland |
| 47 | Marie Loughran | 37 | Wife | — | Illinois |
| 48 | John Jr. Loughran | 10 | Son | — | Illinois |
| 49 | William Loughran | 8 | Son | — | Illinois |
| 50 | Thomas Loughran | 5 | Son | — | Illinois |
| 51 | Janet Loughran | 3 | Daughter | — | Illinois |
| 52 | Margaret Loughran | 1 | Daughter | — | Illinois |
| 53 | Elizabeth Horton | 54 | Head | — | Illinois |
| 54 | Nellie Rebekin | 28 | Lodger | High School Teacher | Wisconsin |
| 55 | Arnold Parkison | 21 | Lodger | High School Teacher | Iowa |
| 57 | Martin Johnson | 68 | Head | Station Attendant | Illinois |
| 58 | Christine C. Johnson | 65 | Wife | — | Iowa |
| 59 | Lloyd Johnson THIS PERSON | 40 | Son | Superintendent Agency Wholesale | Illinois |
| 60 | Robert Hacelleaf | 19 | Lodger | Linotype Operator | Minnesota |
| 61 | W. Blanche Mcculloch | 62 | Head | Recreation Leader | Illinois |
| 62 | Gordon Mcculloch | 21 | Son | Guard | Illinois |
| 63 | Lenore Mcculloch | 20 | Daughter-in-law | — | Illinois |
| 64 | William Mcculloch | 4 | Grandson | — | Illinois |
| 65 | Mary J. Mcculloch | 1 | Granddaughter | — | Illinois |
| 66 | Howard R. Mcculloch | 22 | Son | Surveyor | Illinois |
| 67 | Margaret L. Mcculloch | 32 | Daughter | Nurse Matron | Illinois |
| 68 | Willis Lehman | 49 | Head | Maintenance Supervisor | Illinois |
| 69 | Winifred Lehman | 47 | Wife | — | Illinois |
| 70 | Donald Lehman | 20 | Son | Part Time Sales Clerk | Illinois |
| 71 | Mary Lehman | 17 | Daughter | — | Illinois |
| 72 | Helen Lehman | 12 | Daughter | — | Illinois |
| 73 | John David Lehman | 1 | Son | — | Illinois |
| 74 | O. H. Swift | 51 | Head | Reproduction Service | Illinois |
| 75 | Theetta Swift | 46 | Wife | — | Illinois |
| 76 | Harry Swift | 17 | Son | — | Illinois |
| 77 | Glenn Swift | 12 | Son | — | Illinois |
| 78 | H. Robert Swift | 9 | Son | — | Illinois |
| 79 | Cyrus J. Clatworthy | 54 | Head | — | Illinois |
| 80 | Agusta Clatworthy | 52 | Wife | — | Illinois |
Pedigree Summary
Lloyd
Gen 1 · 6 parents
~0.92
Max depth 4 (1900–1950 window)
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)