LA
Lawrence Anderson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Washington-County, Oregon
Our Model Tree links this Lawrence Anderson across the 1920, 1930 and 1940 US Censuses in Washington-County, Oregon (XGBoost, ~Confirmed), with identified parents Ivan & John — first a son (b.~1901), then head of a 3-person household.
Age 39
b. ~1901
Male
Son
Born: Nebraska
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Washington-County, Oregon |
| Surname | Anderson |
| Given Name | Lawrence |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Single |
| Birthplace | Nebraska |
| 1935 Residence (City) | Dilly |
| 1935 Residence (County) | Washington |
| Additional Details | |
| Occupation | laborer |
| Industry | road construction |
| Class of Worker | PW |
| Hours Worked | 40 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
| Occupation | Laborer |
| Township / Ward | Dilly |
| Est. Birth Year | ~1901 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Lawrence | Age | Birth yr |
|---|---|---|---|---|
| Ann Anderson | Daughter | — | 41 | ~1899 |
| Lawrence Anderson | Son | — | 39 | ~1901 |
| Ivan Anderson | Head | — | 27 | ~1913 |
Census Appearances
1920
Washington, Oregon
Son, age 19
Washington, Oregon · implied b. ~1901 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Anderson |
| Given Name | Lawrence |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Nebraska |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
1930
Washington, Oregon
Son, age 29
Washington, Oregon · implied b. ~1901 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Anderson |
| Given Name | Lawrence |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Nebraska |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Occupation | Farmer |
| Industry | Gen Farming |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
1940
Washington-County, Oregon
Son, age 39
Washington-County, Oregon · implied b. ~1901 — 3 household members
| Surname | Anderson |
| Given Name | Lawrence |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Single |
| Birthplace | Nebraska |
| 1935 Residence (City) | Dilly |
| 1935 Residence (County) | Washington |
| Occupation | laborer |
| Industry | road construction |
| Class of Worker | PW |
| Hours Worked | 40 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
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 Anderson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Ivan Anderson (~0.50 confidence) and father John Anderson (~0.92 confidence) and father John Anderson (~0.92 confidence) and mother Solveig Anderson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.82
Father
Ivan Anderson
b. ~1913
Source father
● Household
· direct · ~0.5
Father
John Anderson
b. ~1853
Source father
● Household
· direct · ~0.92
Father
John Anderson
b. ~1853
Source father
● Household
· direct · ~0.92
Mother
Solveig Anderson
b. ~1864
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Lawrence Anderson
Son · 1940 · age 39 · b. ~1901 · Oregon
★ You are viewing this record
Sibling
Ann Anderson
Sibling · 1940 · age 41
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 — Washington-County, Oregon
Open full size
1940 US Federal Census — Washington-County, Oregon
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03382-00506)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Valerie Anderson | 5 | daughter | — | Oregon |
| 42 | Herbert Simmonsen | 58 | head | Section Hand | Oregon |
| 43 | Minnie Simmonsen | 55 | wife | — | Oregon |
| 44 | Edgar H. Simmonsen | 32 | son | Laborer | Oregon |
| 45 | Melvin C. Simmonsen | 21 | son | Laborer | Oregon |
| 46 | Orvill M. Simmonsen | 18 | son | Laborer | Oregon |
| 47 | Forrest L. Simmonsen | 16 | son | — | Oregon |
| 48 | Marvin C. Simmonsen | 11 | son | — | Oregon |
| 49 | Mary E. Jewell | 65 | head | — | Minnesota |
| 50 | Wilford Jewell | 46 | son | Farmer | Washington |
| 51 | Ivan L. Anderson | 27 | head | — | Norway |
| 52 | Lawrence Anderson THIS PERSON | 39 | son | Laborer | Nebraska |
| 53 | Ann Anderson | 41 | daughter | Clerk | Nebraska |
| 54 | Martin Gerdes | 49 | head | Farm | Illinois |
| 55 | Lena Gerdes | 44 | wife | — | Oregon |
| 56 | Helen Gerdes | 13 | daughter | — | Oregon |
| 57 | Luther Gerdes | 11 | son | — | Oregon |
| 58 | Monroe Gerdes | 9 | son | — | Oregon |
| 59 | Mint Hart | 41 | head | Laborer | Texas |
| 60 | Esther Hart | 28 | wife | — | Oregon |
| 61 | Esther Marie Hart | 5 | daughter | — | Texas |
| 62 | Edwin Leroy Hart | 3 | son | — | Oregon |
| 63 | Alverta Gates | 51 | head | — | Oregon |
| 64 | Lavina Gates | 79 | mother | — | Oregon |
| 65 | Raymond Hubbert | 32 | head | Sawyer | Oregon |
| 66 | Katheryn Hubbert | 27 | wife | — | Oregon |
| 67 | Verne Hubbert | 7 | son | — | Oregon |
| 68 | Ray Morris | 31 | lodger | Truck Driver | Oregon |
| 69 | Odd Morris | 34 | lodger/father | Carpenter | Oregon |
| 70 | Ernest Steve Minton | 42 | head | Boiler Man | Oklahoma |
| 71 | Grace Minton | 39 | wife | — | Tennessee |
| 72 | Boyd Minton | 16 | son | Laborer | Oklahoma |
| 73 | Norma Minton | 5 | daughter | — | Oregon |
| 74 | Oral Kiser | 28 | head | Line-Up-Man/Footman | Oregon |
| 75 | Delma Kiser | 39 | wife | — | Oregon |
| 76 | Myron Moore | 16 | stepson | — | Oregon |
| 77 | Geraldine Moore | 13 | stepdaughter | — | Oregon |
| 78 | Marilyn Moore | 9 | stepdaughter | — | Oregon |
| 79 | Howard E. Snyder | 58 | head | Proprietor | Pennsylvania |
| 80 | Minnie A. Snyder | 57 | wife | Attendant | Wisconsin |
Pedigree Summary
Lawrence + 1 sibling
Gen 1 · 4 parents
~0.81
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)