GJ
Gertrude Johnson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Ramsey-County, Minnesota
Our Model Tree links this Gertrude Johnson across the 1920, 1930 and 1940 US Censuses in Ramsey-County, Minnesota (XGBoost, ~Confirmed), with identified parents Harry & Harry — first a daughter (b.~1904), then head of a 2-person household.
Age 36
b. ~1904
Female
Daughter
Born: Colorado
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Ramsey-County, Minnesota |
| Surname | Johnson |
| Given Name | Gertrude (S) |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 36 |
| Marital Status | Single |
| Birthplace | Colorado |
| 1935 Residence (City) | St Paul |
| 1935 Residence (County) | Ramsey |
| Additional Details | |
| Occupation | Asst to Director Bureau Trade |
| Industry | State of Minnesota |
| Class of Worker | GW |
| Hours Worked | 44 |
| Income (1939) | 3000 |
| Highest Grade | H 4 |
| 1935 Residence | Same home |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
| Occupation | Asst To Director Bureau Trade |
| Township / Ward | St Paul |
| Est. Birth Year | ~1904 |
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 Gertrude | Age | Birth yr |
|---|---|---|---|---|
| Gertrude Johnson | Daughter | — | 36 | ~1904 |
| Harry Johnson | Head | — | 68 | ~1872 |
Census Appearances
1920
Ramsey, Minnesota
Daughter, age 16
Ramsey, Minnesota · implied b. ~1904 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Gertrude |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Canada |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1930
Ramsey, Minnesota
Daughter, age 26
Ramsey, Minnesota · implied b. ~1904 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Gertrude A |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Colorado |
| Mother's Birthplace | Canada English |
| Occupation | Child Welfare Investigator |
| Industry | Ramsey County |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1940
Ramsey-County, Minnesota
Daughter, age 36
Ramsey-County, Minnesota · implied b. ~1904 — 2 household members
| Surname | Johnson |
| Given Name | Gertrude (S) |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 36 |
| Marital Status | Single |
| Birthplace | Colorado |
| 1935 Residence (City) | St Paul |
| 1935 Residence (County) | Ramsey |
| Occupation | Asst to Director Bureau Trade |
| Industry | State of Minnesota |
| Class of Worker | GW |
| Hours Worked | 44 |
| Income (1939) | 3000 |
| Highest Grade | H 4 |
| 1935 Residence | Same home |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
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 Gertrude Johnson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Harry Johnson (~0.92 confidence) and father Harry Johnson (~0.92 confidence) and mother Addie Johnson (~0.92 confidence) and mother Addie Johnson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Harry Johnson
b. ~1871
Source father
● Household
· direct · ~0.92
Father
Harry Johnson
b. ~1872
Source father
● Household
· direct · ~0.92
Mother
Addie Johnson
b. ~1875
Source mother
● Household
· direct · ~0.92
Mother
Addie Johnson
b. ~1876
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Gertrude Johnson
Daughter · 1940 · age 36 · b. ~1904 · Minnesota
★ 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 — Ramsey-County, Minnesota
Open full size
1940 US Federal Census — Ramsey-County, Minnesota
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-02003-00326)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | D. Howard Perry | 35 | Head | Salesman | Minnesota |
| 2 | Harriet (A) Perry | 31 | Wife | — | Minnesota |
| 3 | Jocelyn Perry | 6 | Daughter | — | — |
| 4 | Edward Kelley | 47 | Head | Butcher | Minnesota |
| 5 | Ann Kelley | 47 | Wife | — | Minnesota |
| 6 | Marjory Kelley | 16 | Daughter | — | Minnesota |
| 7 | John Sullivan | 29 | Head | Furniture Salesman | Minnesota |
| 8 | Blanche (L) Sullivan | 24 | Wife | — | Minnesota |
| 9 | Patricia Sullivan | 3 | Daughter | — | — |
| 10 | Edward Holl | 42 | Head | Owner Manager | Minnesota |
| 11 | Zetta (A) Holl | 41 | Wife | — | Minnesota |
| 12 | Marylou Holl | 8 | Daughter | — | Minnesota |
| 13 | Irene Deroche | 20 | Daughter | Clerical | Minnesota |
| 14 | Harry Viellieux | 40 | Head | Photographer | Minnesota |
| 15 | Laura (R) Viellieux | 40 | Wife | — | Minnesota |
| 16 | Lara Harriet Viellieux | 16 | Daughter | — | Minnesota |
| 17 | Clara E. Viellieux | 15 | Daughter | — | Minnesota |
| 18 | Lois Ann Viellieux | 7 | Daughter | — | — |
| 19 | Harold Goodrich | 42 | Head | Controller | Minnesota |
| 20 | Maud Goodrich | 39 | Wife | — | Minnesota |
| 21 | Leo G. Goodrich | 12 | Son | — | Minnesota |
| 22 | Arnold W. Walcher | 36 | Head | Deputy Probation Office | Minnesota |
| 23 | Adeline (B) Walcher | 31 | Wife | — | Minnesota |
| 24 | Barbra Becker | 72 | Mother in law | — | Minnesota |
| 25 | Milton Schueler | 48 | Head | Internal Revenue Agent | Wisconsin |
| 26 | Hazel (S) Schueler | 41 | Wife | — | Minnesota |
| 27 | Sophia Van Keuren | 63 | Mother in law | — | Minnesota |
| 28 | Harry S. Johnson | 68 | Head | Inspector Distilleries Tax | Wisconsin |
| 29 | Gertrude (S) Johnson THIS PERSON | 36 | Daughter | Asst To Director Bureau Trade | Colorado |
| 30 | Leo Fitzgerald | 43 | Head | Manager | Iowa |
| 31 | Margaret Fitzgerald | 42 | Wife | — | Minnesota |
| 32 | Virginia Fitzgerald | 15 | Daughter | — | Minnesota |
| 33 | Margaret Fitzgerald | 12 | Daughter | — | Minnesota |
| 34 | James Fitzgerald | 9 | Son | — | Minnesota |
| 35 | Ellen Galvin | 76 | Mother in law | — | Minnesota |
| 36 | Cornelius H. Kleyne | 47 | Head | Owner Manager | Iowa |
| 37 | Marie (R) Kleyne | 42 | Wife | — | Minnesota |
| 38 | Wilhelmina Kleyne | 11 | Daughter | — | Minnesota |
| 39 | Joan Kleyne | 10 | Daughter | — | Minnesota |
Pedigree Summary
Gertrude
Gen 1 · 4 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)