LJ
Lois Johnson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Washington-County, Oregon
Our Model Tree links this Lois Johnson across the 1920, 1930 and 1940 US Censuses in Washington-County, Oregon (XGBoost, ~Confirmed) — first a head (b.~1868), then head of a 6-person household.
Age 72
b. ~1868
Male
Head
Born: Denmark
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Washington-County, Oregon |
| Surname | Johnson |
| Given Name | Lois P. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 72 |
| Marital Status | Married |
| Birthplace | Denmark |
| 1935 Residence (City) | Tualatin City |
| 1935 Residence (County) | Washington |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Kitchen Helper |
| Industry | Golf Club House |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 200 |
| Highest Grade | H 8 |
| 1935 Residence | Same place |
| Birth Country | Denmark |
| Birthplace (normalized) | denmark |
| Occupation | Kitchen Helper |
| Township / Ward | Tualatin City |
| Est. Birth Year | ~1868 |
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 Lois | Age | Birth yr |
|---|---|---|---|---|
| Lois Johnson | Head | — | 72 | ~1868 |
| Jay Johnson | Other | — | 2 | ~1938 |
| Grace Johnson | Other | — | 29 | ~1911 |
| Peter Johnson | Son | — | 25 | ~1915 |
| Ivan Johnson | Son | — | 31 | ~1909 |
| Elsie Johnson | Spouse | — | 68 | ~1872 |
Census Appearances
1920
Multnomah, Oregon
Head, age 51
Multnomah, Oregon · implied b. ~1869 — 20 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Lars P. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Denmark |
| Year of Immigration | 1880 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Occupation | Machinist |
| Industry | Garage |
| Class of Worker | O |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Danish |
| Home Owned/Rented | R |
| Birth Country | Denmark |
| Year of Naturalization | 1886 |
| Birthplace (normalized) | denmark |
1930
Washington, Oregon
Head, age 61
Washington, Oregon · implied b. ~1869 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Lars P. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 61 |
| Marital Status | Married |
| Birthplace | Denmark |
| Naturalization Status | Naturalized |
| Year of Immigration | 1880 |
| Age at First Marriage | 33 |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Occupation | none |
| Can Read/Write | Yes |
| Mother Tongue | Danish |
| Home Owned/Rented | R |
| Home Value / Rent | 10 |
| Birth Country | Denmark |
| Birthplace (normalized) | denmark |
1940
Washington-County, Oregon
Head, age 72
Washington-County, Oregon · implied b. ~1868 — 6 household members
| Surname | Johnson |
| Given Name | Lois P. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 72 |
| Marital Status | Married |
| Birthplace | Denmark |
| 1935 Residence (City) | Tualatin City |
| 1935 Residence (County) | Washington |
| Naturalization Status | Naturalized |
| Occupation | Kitchen Helper |
| Industry | Golf Club House |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 200 |
| Highest Grade | H 8 |
| 1935 Residence | Same place |
| Birth Country | Denmark |
| Birthplace (normalized) | denmark |
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 Lois Johnson across 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Lois Johnson
Head · 1940 · age 72 · b. ~1868 · Oregon
★ 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 — 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-t0627-03382-00064)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Asa W. Mack | 50 | Head | Laborer | Oregon |
| 42 | Eva G. Mack | 45 | Wife | — | Washington |
| 43 | Leonard S. Pohl | 23 | Son | Operator | Washington |
| 44 | Margie C. Pohl | 19 | Daughter | House Keeper | Oregon |
| 45 | John B. Worch | 73 | Head | Real Estate | Germany |
| 46 | Minnie Worch | 61 | Wife | — | Germany |
| 47 | August G. Langpap | 47 | Head | Foreman | S. Dakota |
| 48 | Matilda Langpap | 42 | Wife | — | Minnesota |
| 49 | Samuel Todd | 43 | Head | Laborer | Oklahoma |
| 50 | Doris Todd | 38 | Wife | — | Iowa |
| 51 | Vera Todd | 16 | Daughter | — | Oregon |
| 52 | Ruth Todd | 14 | Daughter | — | Oregon |
| 53 | Lois Todd | 11 | Daughter | — | Oregon |
| 54 | Jean Todd | 10 | Daughter | — | Oregon |
| 55 | Howard Todd | 8 | Son | — | Oregon |
| 56 | Alice Todd | 5 | Daughter | — | Oregon |
| 57 | Samuel Todd | 2 | Son | — | Oregon |
| 58 | Joseph W. Krise | 54 | Head | — | Nebraska |
| 59 | Edith S. Krise | 42 | Wife | — | Oregon |
| 60 | Robert P. Krise | 20 | Son | Woodcutter | Oregon |
| 61 | Virginia M. Krise | 14 | Daughter | — | Oregon |
| 62 | William Bourgrove | 51 | Head | — | Oregon |
| 63 | Teresa O. Bourgrove | 39 | Wife | — | Idaho |
| 64 | Henrietta Bourgrove | 18 | Daughter | — | Oregon |
| 65 | Dolores Mclaughlin | 17 | Daughter | — | Oregon |
| 66 | William Mclaughlin | 15 | Son | — | Oregon |
| 67 | Walter Eames | 48 | Head | Groundkeeper | Massachusetts |
| 68 | Walter J. Eames | 18 | Son | — | Oregon |
| 69 | Lois P. Johnson THIS PERSON | 72 | Head | Kitchen Helper | Denmark |
| 70 | Elsie Johnson | 68 | Wife | Cook & Baker | Denmark |
| 71 | Ivan Johnson | 31 | Son | Professional | Oregon |
| 72 | Peter Johnson | 25 | Son | — | Arkansas |
| 73 | Jay G. Johnson | 2 | Grandson | — | Oregon |
| 74 | Grace Johnson | 29 | Daughter-in-law | Commercial Artist | Oregon |
| 75 | John Richards | 56 | Head | Laborer | Switzerland |
| 76 | Alvilda Richards | 48 | Wife | — | Oregon |
| 77 | Leon C. Mcreynolds | 45 | Head | Longshoreman | Nebraska |
| 78 | Ruth A. Mcreynolds | 43 | Wife | — | Oregon |
| 79 | Robert W. Mcreynolds | 20 | Son | Delivery | Oregon |
| 80 | Myrtle M. Ladd | 59 | Head | — | Ohio |
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)