OJ
Olga Johnson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Merrimack-County, New Hampshire
Our Model Tree links this Olga Johnson across the 1920, 1930 and 1940 US Censuses in Merrimack-County, New Hampshire (XGBoost, ~Confirmed), with identified parents Gust & Marie — first a daughter (b.~1891), then head of a 2-person household.
Age 49
b. ~1891
Female
Daughter
Born: Sweden
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Merrimack-County, New Hampshire |
| Surname | Johnson |
| Given Name | Olga |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 49 |
| Marital Status | Single |
| Birthplace | Sweden |
| 1935 Residence (City) | Concord city |
| 1935 Residence (County) | Merrimack |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Housekeeper |
| Industry | Private Home |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 728 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
| Occupation | Housekeeper |
| Township / Ward | Concord City |
| Est. Birth Year | ~1891 |
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.
2 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Olga | Age | Birth yr |
|---|---|---|---|---|
| Olga Johnson | Daughter | — | 49 | ~1891 |
| Marie Johnson | Head | — | 84 | ~1856 |
Census Appearances
1920
Merrimack, New …
Daughter, age 29
Merrimack, New Hampshire · implied b. ~1891 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Olga |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Sweden |
| Year of Immigration | 1905 |
| Naturalization Status | Alien |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | No |
| Mother Tongue | Swedish |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
1930
Merrimack, New …
Daughter, age 39
Merrimack, New Hampshire · implied b. ~1891 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Olga A |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 39 |
| Marital Status | Single |
| Birthplace | Sweden |
| Naturalization Status | Naturalized |
| Year of Immigration | 1905 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Housework |
| Industry | Private Home |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Swedish |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
1940
Merrimack-County, New …
Daughter, age 49
Merrimack-County, New Hampshire · implied b. ~1891 — 2 household members
| Surname | Johnson |
| Given Name | Olga |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 49 |
| Marital Status | Single |
| Birthplace | Sweden |
| 1935 Residence (City) | Concord city |
| 1935 Residence (County) | Merrimack |
| Naturalization Status | Naturalized |
| Occupation | Housekeeper |
| Industry | Private Home |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 728 |
| 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. Identified parents: father Gust Johnson (~0.92 confidence) and mother Marie Johnson (~0.92 confidence) and mother Myna Johnson (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Gust Johnson
b. ~1866
Source father
● Household
· direct · ~0.92
Mother
Marie Johnson
b. ~1856
Source mother
● Household
· direct · ~0.92
Mother
Myna Johnson
b. ~1867
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Olga Johnson
Daughter · 1940 · age 49 · b. ~1891 · New Hampshire
★ 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 — Merrimack-County, New Hampshire
Open full size
1940 US Federal Census — Merrimack-County, New Hampshire
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02293-00485)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Marion Ingersoll | 49 | Head | — | New Hampshire |
| 2 | Mary Ingersoll | 15 | Daughter | — | New Hampshire |
| 3 | Jonathan Ingersoll | 13 | Son | — | New Hampshire |
| 4 | Vinnie Barton | 45 | Lodger | Social Worker | Austria |
| 5 | Walter S. Dole | 71 | Head | Inspector | New Hampshire |
| 6 | Cora W. Dole | 70 | Wife | — | New Hampshire |
| 7 | William Sleeper | 52 | Head | Realtor | New Hampshire |
| 8 | Mildred L. Sleeper | 17 | Daughter | — | New Hampshire |
| 9 | Ralph L. Sleeper | 15 | Son | — | New Hampshire |
| 10 | Anita A. Smith | 23 | Housekeeper | Housekeeper | Massachusetts |
| 11 | Grace S. Gordon | 55 | Head | — | New Hampshire |
| 12 | Benett Trask | 47 | Head | Clerk | New Hampshire |
| 13 | Gertrude Trask | 45 | Sister | — | New Hampshire |
| 14 | Harold Bridge | 49 | Head | Part Owner | New Hampshire |
| 15 | Theodore Bridge | 46 | Wife | — | New Hampshire |
| 16 | Beverly Bridge | 19 | Daughter | — | New Hampshire |
| 17 | Angie Bridge | 78 | Mother | — | New Hampshire |
| 18 | Jasper Avery | 35 | Head | Truck Driver | New Hampshire |
| 19 | Marion Avery | 30 | Wife | Bookkeeper | New Hampshire |
| 20 | Mildred Perkins | 30 | Lodger | Clerk | Vermont |
| 21 | George Blodgett | 53 | Head | Carpenter | Vermont |
| 22 | Hilda Blodgett | 56 | Wife | Cooking | Vermont |
| 23 | Marie Johnson | 84 | Head | — | Sweden |
| 24 | Olga Johnson THIS PERSON | 49 | Daughter | Housekeeper | Sweden |
| 25 | Hall Nelson | 75 | Head | Owner | New Hampshire |
| 26 | Martha Nelson | 70 | Wife | — | New Hampshire |
| 27 | Winifred Packard | 53 | Lodger | Typist | Massachusetts |
| 28 | Ellen Smith | 62 | Wife | — | Massachusetts |
| 29 | Dorothy L. Leonard | 36 | Daughter | Stenographer | Maine |
| 30 | Crystal S. Pierson | 29 | Lodger | Bookkeeper | New Hampshire |
| 31 | Ada Fleece | 43 | Lodger | Teacher | Texas |
| 32 | Robert Styles | 18 | Nephew | — | Massachusetts |
| 33 | Francis Havens | 24 | Lodger | Truck Driver | Massachusetts |
| 34 | Mabel Goodwin | 60 | Head | — | New Hampshire |
| 35 | Velma Goodwin | 25 | Son | Worker | New Hampshire |
| 36 | Trudy Goodwin | 20 | Daughter | Stenographer | New Hampshire |
| 37 | James Engleah | 45 | Head | General Work | New York |
| 38 | Lena Engleah | 60 | Wife | Practical Nurse | New York |
| 39 | John H. Sullivan | 67 | Head | — | Canada |
| 40 | Ida M. Sullivan | 61 | Wife | — | Canada |
Pedigree Summary
Olga
Gen 1 · 3 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)