LJ
Lawrence Johnson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Multnomah-County, Oregon
Our Model Tree links this Lawrence Johnson across the 1920, 1930 and 1940 US Censuses in Multnomah-County, Oregon (XGBoost, ~Confirmed), with identified parents Edward & Edwin — first a son (b.~1910), then head of a 6-person household.
Age 30
b. ~1910
Male
Son
Born: Oregon
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Multnomah-County, Oregon |
| Surname | Johnson |
| Given Name | Lawrence H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Oregon |
| 1935 Residence (City) | Portland city |
| 1935 Residence (County) | Multnomah |
| Additional Details | |
| Occupation | Painter |
| Industry | Housing |
| Class of Worker | PW |
| Hours Worked | 36 |
| Income (1939) | 330 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
| Occupation | Painter |
| Township / Ward | Portland City |
| Est. Birth Year | ~1910 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Lawrence | Age | Birth yr |
|---|---|---|---|---|
| Edward Johnson | Head | — | 61 | ~1879 |
| Deloris Johnson | Other | — | 27 | ~1913 |
| Emory Johnson | Son | — | 32 | ~1908 |
| Lawrence Johnson | Son | — | 30 | ~1910 |
| Gordon Johnson | Son | — | 23 | ~1917 |
| Julia Johnson | Spouse | — | 53 | ~1887 |
Census Appearances
1920
Multnomah, Oregon
Son, age 10
Multnomah, Oregon · implied b. ~1910 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Lawrence H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Oregon |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Minnesota |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
1930
Multnomah, Oregon
Son, age 20
Multnomah, Oregon · implied b. ~1910 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Lawrence L |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Oregon |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Minnesota |
| Occupation | Salesman |
| Industry | Department Store |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
1940
Multnomah-County, Oregon
Son, age 30
Multnomah-County, Oregon · implied b. ~1910 — 6 household members
| Surname | Johnson |
| Given Name | Lawrence H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Oregon |
| 1935 Residence (City) | Portland city |
| 1935 Residence (County) | Multnomah |
| Occupation | Painter |
| Industry | Housing |
| Class of Worker | PW |
| Hours Worked | 36 |
| Income (1939) | 330 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
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 Edward Johnson (~0.92 confidence) and father Edwin Johnson (~0.92 confidence) and mother Julia Johnson (~0.92 confidence) and mother Julia Johnson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Edward Johnson
b. ~1879
Source father
● Household
· direct · ~0.92
Father
Edwin Johnson
b. ~1879
Source father
● Household
· direct · ~0.92
Mother
Julia Johnson
b. ~1879
Source mother
● Household
· direct · ~0.92
Mother
Julia Johnson
b. ~1887
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Lawrence Johnson
Son · 1940 · age 30 · b. ~1910 · Oregon
★ You are viewing this record
Sibling
Emory Johnson
Sibling · 1940 · age 32
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gordon Johnson
Sibling · 1940 · age 23
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 — Multnomah-County, Oregon
Open full size
1940 US Federal Census — Multnomah-County, Oregon
Page Contents
37 people indexed on this census page (nara:1940:m-t0627-03390-00016)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Lucy Mendenhall | 53 | Boarder | Nurse | North Carolina |
| 42 | Rosina Lux | 77 | Head | — | Minnesota |
| 43 | William Duffy | 40 | Head | Machinist | Wyoming |
| 44 | Beatrice Duffy | 38 | Wife | — | Rhode Island |
| 45 | Marion Bowman | 63 | Mother in law | — | Rhode Island |
| 46 | Stanley Stahl | 42 | Head | Laborer | New York |
| 47 | Dorothy Stahl | 37 | Wife | — | Oregon |
| 48 | Jessie Stahl | 18 | Daughter | Dental Assistant | Oregon |
| 49 | Helen Stahl | 16 | Daughter | — | Oregon |
| 50 | Percival E. Wood | 31 | Head | Electrical Mechanic | Oregon |
| 51 | Lucille Wood | 10 | Daughter | — | Oregon |
| 52 | Vera Gill | 48 | Mother | Cook | Illinois |
| 54 | Earl Davis | 39 | Head | Apprentice Engineer | Oregon |
| 55 | Mary Davis | 36 | Wife | — | Idaho |
| 56 | William Davis | 6 | Son | — | Oregon |
| 57 | Jack Davis | 5 | Son | — | Oregon |
| 58 | Robert Davis | 3 | Son | — | Oregon |
| 59 | Edward L. Johnson | 61 | Head | Painter | Minnesota |
| 60 | Julia M. Johnson | 53 | Wife | — | Minnesota |
| 61 | Emory J. Johnson | 32 | Son | News Boy | Minnesota |
| 62 | Gordon T. Johnson | 23 | Son | Painter | Minnesota |
| 63 | Lawrence H. Johnson THIS PERSON | 30 | Son | Painter | Oregon |
| 64 | Deloris Johnson | 27 | Daughter in law | — | Oregon |
| 65 | Merlin Halleran | 38 | Head | Gardener | Free State |
| 66 | Joan Marie Halleran | 1 | Daughter | — | Oregon |
| 67 | Jane Anne Bishop | 52 | House keeper | House Keeper | Canada English |
| 70 | Frank Paul Ivory | 35 | Head | Handyman | Oregon |
| 71 | Alice Ivory | 35 | Wife | Stenographer | Oregon |
| 72 | Emil Ivory | 72 | Father | — | Switzerland |
| 73 | Robert J. Morrison | 34 | Head | Bell Hop | Indiana |
| 74 | Rose Morrison | 25 | Wife | — | Montana |
| 75 | Donald Morrison | 1 | Son | — | Oregon |
| 76 | James Mccanley | 71 | Head | — | Ireland |
| 77 | William Madigan | 38 | Son in law | Accountant | California |
| 78 | Mary Madigan | 39 | Daughter | — | Montana |
| 79 | Mary Beth Madigan | 5 | Grand daughter | — | Oregon |
| 80 | John Whitaker | 48 | Head | Cook | Oregon |
Pedigree Summary
Lawrence + 2 siblings
Gen 1 · 4 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)