LJ
Lawrence Johnson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Eau-Claire-County, Wisconsin
Our Model Tree links this Lawrence Johnson across the 1920, 1930 and 1940 US Censuses in Eau-Claire-County, Wisconsin (XGBoost, ~Confirmed), with identified parents Louis & Anna — first a head (b.~1909), then head of a 4-person household.
Age 31
b. ~1909
Male
Head
Born: Wisconsin
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Eau-Claire-County, Wisconsin |
| Surname | Johnson |
| Given Name | Lawrence |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Eau Claire City |
| 1935 Residence (County) | Eau Claire |
| Additional Details | |
| Occupation | Lineman |
| Industry | Electric Utility |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 2114 |
| Highest Grade | C 4 |
| 1935 Residence | Same Place |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
| Occupation | Lineman |
| Township / Ward | Eau Claire City |
| Est. Birth Year | ~1909 |
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 Lawrence | Age | Birth yr |
|---|---|---|---|---|
| Diane Johnson | Daughter | — | 3 | ~1937 |
| Lawrence Johnson | Head | — | 31 | ~1909 |
| Delmar Johnson | Son | — | 10 | ~1930 |
| Helma Johnson | Spouse | — | 29 | ~1911 |
Census Appearances
1920
Eau Claire, …
Son, age 10
Eau Claire, Wisconsin · implied b. ~1910 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Lawrence |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| Father's Birthplace | Norway |
| Mother's Birthplace | Wisconsin |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1930
Eau Claire, …
Son, age 21
Eau Claire, Wisconsin · implied b. ~1909 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Lawrence J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| Father's Birthplace | Norway |
| Mother's Birthplace | Wisconsin |
| Occupation | Truck Driver |
| Industry | Transfer Co. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1940
Eau-Claire-County, Wisconsin
Head, age 31
Eau-Claire-County, Wisconsin · implied b. ~1909 — 4 household members
| Surname | Johnson |
| Given Name | Lawrence |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Eau Claire City |
| 1935 Residence (County) | Eau Claire |
| Occupation | Lineman |
| Industry | Electric Utility |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 2114 |
| Highest Grade | C 4 |
| 1935 Residence | Same Place |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
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 Lawrence Johnson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Louis Johnson (~0.92 confidence) and mother Anna Johnson (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Louis Johnson
b. ~1877
Source father
● Household
· direct · ~0.92
Mother
Anna Johnson
b. ~1879
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Lawrence Johnson
Head · 1940 · age 31 · b. ~1909 · Wisconsin
★ 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 — Eau-Claire-County, Wisconsin
Open full size
1940 US Federal Census — Eau-Claire-County, Wisconsin
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04477-00345)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Gay Thompson | 3 | Daughter | — | Wisconsin |
| 2 | Arthur Thompson | 38 | Head | Truck Driver | Wisconsin |
| 3 | Dorothy P. Thompson | 23 | Wife | — | Wisconsin |
| 4 | Barbara Jean Thompson | 2 | Daughter | — | Wisconsin |
| 5 | Alice M. Thompson | 61 | Mother | — | Wisconsin |
| 6 | Gladys Modl | 26 | Sister-in-law | Housework | Wisconsin |
| 7 | Carl P. Thompson | 37 | Head | Stock Clerk | Wisconsin |
| 8 | Gladys S. Thompson | 36 | Wife | — | Wisconsin |
| 9 | Beverly Thompson | 14 | Daughter | — | Wisconsin |
| 10 | Duwayne Thompson | 9 | Son | — | Wisconsin |
| 11 | Caroline P. Harcier | 72 | Mother-in-law | — | Germany |
| 12 | Del Harcier | 43 | Daughter | Saleslady | Wisconsin |
| 13 | William Harcier | 40 | Son | — | Wisconsin |
| 14 | Charles P. Thompson | 23 | Head | Rivet Heater | Wisconsin |
| 15 | Eleanor Thompson | 23 | Wife | — | Wisconsin |
| 16 | Lawrence Johnson THIS PERSON | 31 | Head | Lineman | Wisconsin |
| 17 | Helma Johnson | 29 | Wife | — | Wisconsin |
| 18 | Delmar Johnson | 10 | Son | — | Wisconsin |
| 19 | Diane Johnson | 3 | Daughter | — | Wisconsin |
| 20 | George H. Gilbertson | 52 | Head | Federal Investigator | Michigan |
| 21 | Myrtle P. Gilbertson | 40 | Wife | — | Wisconsin |
| 22 | Warren Gilbertson | 18 | Son | — | Wisconsin |
| 23 | Roger Gilbertson | 3 | Son | — | Wisconsin |
| 24 | Walter Sigel | 36 | Head | Proprietor | Wisconsin |
| 25 | Lillian P. Sigel | 28 | Wife | — | Wisconsin |
| 26 | Barbara Sigel | 7 | Daughter | — | Wisconsin |
| 27 | James Sigel | 5 | Son | — | Wisconsin |
| 28 | Nancy Sigel | 0 | Daughter | — | Wisconsin |
| 29 | William J. Marsh | 68 | Head | Laborer | Canada |
| 30 | Hilda Marsh | 67 | Wife | — | Norway |
| 31 | William Jr. Marsh | 40 | Son | Bartender | Wisconsin |
| 32 | William Linton | 40 | Head | Lineman | Canada |
| 33 | Louie Linton | 36 | Wife | — | Wisconsin |
| 34 | Elizabeth Anderson | 76 | Mother-in-law | — | Sweden |
| 35 | William Erdman | 60 | Head | Street Sweeper | Germany |
| 36 | Martha Erdman | 55 | Wife | — | Germany |
| 37 | Laverne Erdman | 11 | Son | — | Minnesota |
| 38 | Harry Trimbell | 60 | Head | Masonry | Wisconsin |
| 39 | Laura Trimbell | 56 | Wife | — | Canada |
| 40 | Thomas Trimbell | 23 | Son | Masonry | Wisconsin |
Pedigree Summary
Lawrence
Gen 1 · 2 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)