OJ
Olga Johnson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Essex-County, Massachusetts
Our Model Tree links this Olga Johnson across the 1920, 1930 and 1940 US Censuses in Essex-County, Massachusetts (XGBoost, ~Confirmed) — first a spouse (b.~1897), then head of a 3-person household.
Age 43
b. ~1897
Female
Spouse
Born: Sweden
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Essex-County, Massachusetts |
| Surname | Johnson |
| Given Name | Olga K. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Sweden |
| 1935 Residence (City) | Lynn City |
| 1935 Residence (County) | Essex |
| Naturalization Status | Naturalized |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
| Township / Ward | Lynn City |
| Est. Birth Year | ~1897 |
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 Olga | Age | Birth yr |
|---|---|---|---|---|
| Elmer Johnson | Son | — | 23 | ~1917 |
| Shubert Johnson | Head | — | 48 | ~1892 |
| Olga Johnson | Spouse | — | 43 | ~1897 |
Census Appearances
1920
Essex, Massachusetts
Spouse, age 22
Essex, Massachusetts · implied b. ~1898 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Olga K. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Married |
| Birthplace | Sweden |
| Year of Immigration | 1914 |
| Naturalization Status | First papers filed |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Swedish |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
1930
Essex, Massachusetts
Spouse, age 33
Essex, Massachusetts · implied b. ~1897 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Olga C. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Sweden |
| Naturalization Status | Naturalized |
| Year of Immigration | 1914 |
| Age at First Marriage | 19 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Can Read/Write | Yes |
| Mother Tongue | Swedish |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
1940
Essex-County, Massachusetts
Spouse, age 43
Essex-County, Massachusetts · implied b. ~1897 — 3 household members
| Surname | Johnson |
| Given Name | Olga K. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Sweden |
| 1935 Residence (City) | Lynn City |
| 1935 Residence (County) | Essex |
| Naturalization Status | Naturalized |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
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 Olga Johnson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Olga Johnson
Spouse · 1940 · age 43 · b. ~1897 · Massachusetts
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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 — Essex-County, Massachusetts
Open full size
1940 US Federal Census — Essex-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01695-00176)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Daisy O. Speare | 69 | Head | — | New Hampshire |
| 42 | Charles H. Whitehouse | 40 | Head | Mailman | Massachusetts |
| 43 | Evelyn V. Whitehouse | 34 | Wife | — | Massachusetts |
| 44 | Marlene L. Whitehouse | 2 | Daughter | — | Massachusetts |
| 45 | Charles O. Morse | 71 | Head | — | England |
| 46 | Minnie S. Morse | 72 | Wife | — | England |
| 47 | Shubert D. Johnson | 48 | Head | Carpenter | Sweden |
| 48 | Olga K. Johnson THIS PERSON | 43 | Wife | — | Sweden |
| 49 | Elmer W. Johnson | 23 | Son | Carpenter | Massachusetts |
| 50 | Herbert W. Scott | 38 | Head | Embalmer | Massachusetts |
| 51 | Anna V. Scott | 40 | Wife | — | Massachusetts |
| 52 | Arthur W. Thomas | 62 | Head | Contractor & Builder | Canada Eng |
| 53 | Rena B. Thomas | 60 | Wife | — | England |
| 54 | James J. Buckley | 43 | Head | Attorney | Massachusetts |
| 55 | Janet M. Buckley | 42 | Wife | — | Massachusetts |
| 56 | Dorothy J. Buckley | 23 | Daughter | Stenographer | Massachusetts |
| 57 | James E. Buckley | 16 | Son | — | Massachusetts |
| 58 | Thomas M. Birtwell | 64 | Lodger | Stitcher | Scotland |
| 59 | James E. Freeman | 26 | Head | Ship Clerk | Canada Eng |
| 60 | Emma R. Freeman | 62 | Mother | — | England |
| 61 | Alice L. Freeman | 31 | Sister | Clerk | England |
| 62 | John J. Hamill | 46 | Head | Public Accountant | Massachusetts |
| 63 | Laura B. Hamill | 50 | Wife | — | Massachusetts |
| 64 | Robert J. Hamill | 17 | Son | — | Massachusetts |
| 65 | Lynden E. Fox | 59 | Head | Asst. Superintendent | California |
| 66 | Loretta Fox | 58 | Wife | — | New Hampshire |
| 67 | Jean E. Fox | 23 | Daughter | Secretary | Massachusetts |
| 68 | Lizzie F. Davenport | 76 | Head | — | New Hampshire |
| 69 | Addie E. Hooke | 55 | Daughter | Clerk | Massachusetts |
| 70 | Philip B. Hooke | 33 | Grandson | Salesman | Massachusetts |
| 71 | Alice J. Hooke | 31 | Granddaughter-in-law | — | Massachusetts |
| 72 | Philip B. Jr. Hooke | 10 | Great-Grandson | — | Massachusetts |
| 73 | John H. Hellmuth | 41 | Head | Die-Stamp Foreman | Massachusetts |
| 74 | Elda A. Hellmuth | 41 | Wife | — | Sweden |
| 75 | Doris V. Hellmuth | 15 | Daughter | — | Massachusetts |
| 76 | Norman J. Hellmuth | 11 | Son | — | Massachusetts |
| 77 | Patrick D. Theriault | 58 | Head | Salesman | Canada Fr |
| 78 | Charlotte M. Theriault | 39 | Wife | — | France |
| 79 | Doris C. Theriault | 21 | Daughter | Saleslady | Massachusetts |
| 80 | Marjorie E. Theriault | 17 | Daughter | — | Massachusetts |
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)