RA
Robert Anderson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cass-County, North Dakota
Our Model Tree links this Robert Anderson across the 1920, 1930 and 1940 US Censuses in Cass-County, North Dakota (XGBoost, ~Confirmed), with identified parents Jalmar & Palmer — first a son (b.~1919), then head of a 9-person household.
Age 21
b. ~1919
Male
Son
Born: North Dakota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cass-County, North Dakota |
| Surname | Anderson |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | North Dakota |
| 1935 Residence (City) | Fargo city |
| 1935 Residence (County) | Cass |
| Additional Details | |
| Occupation | Tax Research |
| Hours Worked | 32 |
| Highest Grade | C 2 |
| 1935 Residence | Same place |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
| Occupation | Tax Research |
| Township / Ward | Fargo City |
| Est. Birth Year | ~1919 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| La Anderson | Daughter | — | 22 | ~1918 |
| Hilda Anderson | Head | — | 51 | ~1889 |
| Joseph Branke | Other | — | 28 | ~1912 |
| Naomi Patten | Other | — | 30 | ~1910 |
| Julia Salmen | Other | — | 23 | ~1917 |
| Vincent Hoffert | Other | — | 23 | ~1917 |
| Lena Lundy | Other | — | 30 | ~1910 |
| Robert Anderson | Son | — | 21 | ~1919 |
| Richard Anderson | Son | — | 15 | ~1925 |
Census Appearances
1920
Cass, North …
Son, age
Cass, North Dakota · implied b. ~1920 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Anderson |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | North Dakota |
| Father's Birthplace | North Dakota |
| Mother's Birthplace | Minnesota |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
1930
Cass, North …
Son, age 11
Cass, North Dakota · implied b. ~1919 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Anderson |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | North Dakota |
| Father's Birthplace | North Dakota |
| Mother's Birthplace | Minnesota |
| Can Read/Write | Yes |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
1940
Cass-County, North …
Son, age 21
Cass-County, North Dakota · implied b. ~1919 — 9 household members
| Surname | Anderson |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | North Dakota |
| 1935 Residence (City) | Fargo city |
| 1935 Residence (County) | Cass |
| Occupation | Tax Research |
| Hours Worked | 32 |
| Highest Grade | C 2 |
| 1935 Residence | Same place |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
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 Robert Anderson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Jalmar Anderson (~0.92 confidence) and father Palmer Anderson (~0.92 confidence) and mother Hilda Anderson (~0.92 confidence) and mother Hildur Anderson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Jalmar Anderson
b. ~1888
Source father
● Household
· direct · ~0.92
Father
Palmer Anderson
b. ~1888
Source father
● Household
· direct · ~0.92
Mother
Hilda Anderson
b. ~1889
Source mother
● Household
· direct · ~0.92
Mother
Hildur Anderson
b. ~1888
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Anderson
Son · 1940 · age 21 · b. ~1919 · North Dakota
★ You are viewing this record
Sibling
La Anderson
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Anderson
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Cass-County, North Dakota
Open full size
1940 US Federal Census — Cass-County, North Dakota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02997-00105)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Clara Rooth | 24 | Lodger | No | North Dakota |
| 2 | Ilene Rooth | 21 | Lodger | No | North Dakota |
| 3 | Ward Briggs | 47 | Head | General Manager | North Dakota |
| 4 | Hazel Briggs | 41 | Wife | No | Minnesota |
| 5 | Lee Briggs | 15 | Son | No | North Dakota |
| 6 | Alice Briggs | 11 | Daughter | No | North Dakota |
| 7 | Naphe Briggs | 4 | Son | No | North Dakota |
| 8 | Barbara Briggs | 4 | Daughter | No | North Dakota |
| 9 | Mildred Hansen | 28 | Housekeeper | Housekeeper | North Dakota |
| 10 | Rose Croatt | 47 | Head | No | Iowa |
| 11 | Eleanor Croatt | 21 | Son | Collector | Minnesota |
| 12 | Catherine Croatt | 22 | Daughter | No | North Dakota |
| 13 | Stanley Olmsted | 25 | Head | Barber | North Dakota |
| 14 | Helen Olmsted | 28 | Wife | No | North Dakota |
| 15 | Albert Anstett | 55 | Head | Manager | North Dakota |
| 16 | Katherine Anstett | 54 | Wife | No | Canada |
| 17 | Hugh Anstett | 25 | Son | Salesman | North Dakota |
| 18 | Donovan (At) Anstett | 23 | Son | No | North Dakota |
| 19 | Marion Anstett | 21 | Daughter | No | North Dakota |
| 20 | Anne H. Brown | 72 | Head | No | Ireland |
| 21 | Haden Brown | 42 | Son | Clerk | Minnesota |
| 22 | Ruth Brown | 28 | Daughter | Teacher | Pennsylvania |
| 23 | Hilda B. Anderson | 51 | Head | No | Minnesota |
| 24 | La Verne Anderson | 22 | Daughter | Teacher | North Dakota |
| 25 | Robert Anderson THIS PERSON | 21 | Son | Tax Research | North Dakota |
| 26 | Richard Anderson | 15 | Son | No | North Dakota |
| 27 | Naomi Patten | 30 | Lodger | Nurse | Pennsylvania |
| 28 | Lena R. Lundy | 30 | Lodger | Nurse | Nebraska |
| 29 | Julia Salmen | 23 | Lodger | Teacher | Minnesota |
| 30 | Vincent Hoffert | 23 | Lodger | Clerk-Manager | North Dakota |
| 31 | Joseph Branke | 28 | Lodger | Laboratory Asst | Minnesota |
| 32 | Gust Monson | 55 | Head | Street Dept. | Sweden |
| 33 | Tillie Monson | 38 | Wife | No | Germany |
| 34 | Donald Monson | 16 | Son | No | North Dakota |
| 35 | Lawrence Monson | 14 | Son | No | North Dakota |
| 36 | Pete Anderholm | 60 | Lodger | Construction Work | — |
| 37 | Ingwald Kleaker | 72 | Head | Printer | Norway |
| 38 | Antonia Kleaker | 63 | Wife | No | Minnesota |
| 39 | Evelyn Kleaker | 39 | Daughter | Secretary | North Dakota |
| 40 | Harry Rolling | 45 | Head | H.W. Work | South Dakota |
Pedigree Summary
Robert + 2 siblings
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)