LJ
Lois Johnson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · San-Diego-County, California
Our Model Tree links this Lois Johnson across the 1920, 1930 and 1940 US Censuses in San-Diego-County, California (XGBoost, ~Confirmed) — first a head (b.~1894), then head of a 5-person household.
Age 46
b. ~1894
Female
Head
Born: Washington
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | San-Diego-County, California |
| Surname | Johnson |
| Given Name | Lois |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 46 |
| Marital Status | Widowed |
| Birthplace | Washington |
| 1935 Residence (City) | San Diego |
| 1935 Residence (County) | San Diego |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same House |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
| Township / Ward | San Diego |
| Est. Birth Year | ~1894 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Lois | Age | Birth yr |
|---|---|---|---|---|
| Linda Johnson | Daughter | — | 7 | ~1933 |
| Lois Johnson | Head | — | 46 | ~1894 |
| Mabelle Covey | Other | — | 59 | ~1881 |
| Florence Nixon | Other | — | 22 | ~1918 |
| Chester Johnson | Son | — | 20 | ~1920 |
Census Appearances
1920
San Diego, …
Spouse, age 25
San Diego, California · implied b. ~1895 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Lois Lois |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Married |
| Birthplace | Washington |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1930
San Diego, …
Other, age 36
San Diego, California · implied b. ~1894 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Lou E. |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Washington |
| Age at First Marriage | 19 |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Can Read/Write | Yes |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1940
San-Diego-County, California
Head, age 46
San-Diego-County, California · implied b. ~1894 — 5 household members
| Surname | Johnson |
| Given Name | Lois |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 46 |
| Marital Status | Widowed |
| Birthplace | Washington |
| 1935 Residence (City) | San Diego |
| 1935 Residence (County) | San Diego |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same House |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
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 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Lois Johnson
Head · 1940 · age 46 · b. ~1894 · California
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — San-Diego-County, California
Open full size
1940 US Federal Census — San-Diego-County, California
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00447-00399)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Ellen Anewalt | 40 | Wife | — | Indiana |
| 42 | Anthony Anewalt | 10 | Son | — | California |
| 43 | Henry Peter Anewalt | 72 | Father | — | Pennsylvania |
| 44 | Margaret Mcconville | 40 | Maid | Maid | Ireland |
| 45 | R. R. Brown | 45 | Head | Commander | Wisconsin |
| 46 | Augusta Brown | 36 | Wife | — | Wisconsin |
| 47 | Clarence R. Jr. Brown | 3 | Son | — | Florida |
| 48 | Frank E. Wells | 56 | Head | Realtor | Arizona |
| 49 | Louise Wells | 54 | Wife | — | Kentucky |
| 50 | George Struggles | 41 | Head | Officer | Kansas |
| 51 | Dorothy B. Struggles | 35 | Wife | — | S. Dakota |
| 52 | Fred Milton Struggles | 15 | Son | — | California |
| 53 | Mary Ellen Struggles | 13 | Daughter | — | California |
| 54 | Dorothy Struggles | 7 | Daughter | — | California |
| 55 | Gladys F. Willis | 38 | Guest | Saleswoman | Oregon |
| 56 | Joseph Maples | 66 | Head | Civil Engineer | New York |
| 57 | Edith Maples | 60 | Wife | — | Virginia |
| 58 | M. H. Edwards | 70 | Sister | — | New York |
| 59 | Edwards | None | — | — | — |
| 60 | Harry Bennett | 49 | Head | Merchant | Russia |
| 61 | Emmeline Bennett | 42 | Wife | — | Texas |
| 62 | Bernard Bennett | 16 | Son | — | New York |
| 63 | Lois Johnson THIS PERSON | 46 | Head | — | Washington |
| 64 | Chester Jr. Johnson | 20 | Son | New Worker | California |
| 65 | Linda Johnson | 7 | Daughter | — | California |
| 66 | Florence Nixon | 22 | Maid | Maid | Oklahoma |
| 67 | Mabelle Covey | 59 | Nurse | Nurse | Pennsylvania |
| 68 | O. M. Henderson | 70 | Head | Officer | Pennsylvania |
| 69 | Stella Henderson | 60 | Wife | — | S. Carolina |
| 70 | Lillian Harp | 51 | Maid | Maid | Illinois |
| 71 | Jas. F. Hooker | 66 | Head | Attorney | New York |
| 72 | Anna Maude Hooker | 65 | Wife | — | England |
| 73 | Jas. F. Jr. Hooker | 21 | Son | — | New York |
| 74 | Glenn Berry | 34 | Head | Dentist | Texas |
| 75 | Ginell Berry | 35 | Wife | — | Missouri |
| 76 | Glenn Jr. Berry | 11 | Son | — | Oklahoma |
| 77 | Browning Berry | 6 | Son | — | California |
| 78 | Capt. Jos. Fyffe | 65 | Head | Capt. Ret. | Ohio |
| 79 | Anne L. Fyffe | 70 | Wife | — | Ohio |
| 80 | Elizabeth Fyffe | 71 | Sister | Teacher | 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)