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Robert Hammond — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cavalier-County, North Dakota
Our Model Tree links this Robert Hammond across the 1920, 1930 and 1940 US Censuses in Cavalier-County, North Dakota (XGBoost, ~Confirmed), with identified parents Hal & Esther — first a son (b.~1919), then head of a 6-person household.
Age 21
b. ~1919
Male
Son
Born: North Dakota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cavalier-County, North Dakota |
| Surname | Hammond |
| Given Name | Robert B. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | North Dakota |
| 1935 Residence (City) | Huron Township |
| 1935 Residence (County) | Cavalier |
| Additional Details | |
| Occupation | Farm laborer |
| Industry | Farming |
| Class of Worker | NP |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 1935 Residence | North Dakota |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
| Occupation | Farm Laborer |
| Township / Ward | Huron Township |
| 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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Esther Hammond | Spouse | — | 44 | ~1896 |
| Charles Hammond | Son | — | 19 | ~1921 |
| James Hammond | Son | — | 16 | ~1924 |
| Hal Hammond | Head | — | 46 | ~1894 |
| Robert Hammond | Son | — | 21 | ~1919 |
| Esther Hammond | Daughter | — | 11 | ~1929 |
Census Appearances
1920
Cavalier, North …
Son, age 1
Cavalier, North Dakota · implied b. ~1919 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hammond |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | North Dakota |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
1930
Cavalier, North …
Other, age 11
Cavalier, North Dakota · implied b. ~1919 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hammond |
| Given Name | Robert B |
| Relationship to Head | Nephew |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | North Dakota |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
1940
Cavalier-County, North …
Son, age 21
Cavalier-County, North Dakota · implied b. ~1919 — 6 household members
| Surname | Hammond |
| Given Name | Robert B. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | North Dakota |
| 1935 Residence (City) | Huron Township |
| 1935 Residence (County) | Cavalier |
| Occupation | Farm laborer |
| Industry | Farming |
| Class of Worker | NP |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 1935 Residence | North Dakota |
| 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 Hammond across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Hal Hammond (~0.92 confidence) and mother Esther Hammond (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Hal Hammond
b. ~1895
Source father
● Household
· direct · ~0.92
Mother
Esther Hammond
b. ~1896
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Hammond
Son · 1940 · age 21 · b. ~1919 · North Dakota
★ You are viewing this record
Sibling
Charles Hammond
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Hammond
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Esther Hammond
Sibling · 1940 · age 11
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 — Cavalier-County, North Dakota
Open full size
1940 US Federal Census — Cavalier-County, North Dakota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02998-00193)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Fern E. Contd. | 11 | daughter | — | North Dakota |
| 42 | Lois I. Contd. | 7 | daughter | — | North Dakota |
| 43 | Lowell D. Contd. | 4 | son | — | North Dakota |
| 44 | Robert G. Brotherston | 66 | head | Farmer | Canada English |
| 45 | Mary Brotherston | 57 | wife | — | Canada English |
| 46 | Edward Brotherston | 22 | son | Farmer | North Dakota |
| 47 | Evelyn Brotherston | 20 | daughter | — | North Dakota |
| 48 | Verna Brotherston | 18 | daughter | — | North Dakota |
| 49 | Stewart Mcarthur | 31 | head | Farmer | North Dakota |
| 50 | Clara Mcarthur | 31 | wife | — | North Dakota |
| 51 | Marlys Mcarthur | 1 | daughter | — | North Dakota |
| 52 | Morris Naast | 40 | head | Farmer | North Dakota |
| 53 | Mable L. Naast | 25 | wife | — | North Dakota |
| 54 | Donald J. Naast | 6 | son | — | North Dakota |
| 55 | Alex Mcarthur | 63 | head | Farmer | Canada English |
| 56 | Mary Mcarthur | 61 | wife | — | Germany |
| 57 | William Mcarthur | 27 | son | Farmer | North Dakota |
| 58 | Marjorie Mcarthur | 23 | daughter | Housekeeper | North Dakota |
| 59 | Lynn Mcarthur | 20 | son | Farm Laborer | North Dakota |
| 60 | Gene Mcarthur | 17 | daughter | — | North Dakota |
| 61 | Dona Mcarthur | 12 | daughter | — | North Dakota |
| 62 | Francis D. Larson | 32 | head | Farmer | North Dakota |
| 63 | Bernice M. Larson | 29 | wife | — | North Dakota |
| 64 | Gilbert P. Mcarthur | 33 | head | Farmer | North Dakota |
| 65 | Elsie M. Mcarthur | 27 | wife | Dress Making | North Dakota |
| 66 | Donald M. Mcarthur | 6 | son | — | North Dakota |
| 67 | John S. Mcarthur | 3 | son | — | North Dakota |
| 68 | Reinhold Duening | 57 | head | Farmer | Germany |
| 69 | Lena Duening | 55 | wife | — | Minnesota |
| 70 | Raymond Duening | 37 | son | Farm Laborer | North Dakota |
| 71 | Hal L. Hammond | 46 | head | Farmer | Illinois |
| 72 | Esther M. Hammond | 44 | wife | — | Illinois |
| 73 | Robert B. Hammond THIS PERSON | 21 | son | Farm Laborer | North Dakota |
| 74 | Charles R. Hammond | 19 | son | Farm Laborer | North Dakota |
| 75 | James W. Hammond | 16 | son | Farm Laborer | North Dakota |
| 76 | Esther E. Hammond | 11 | daughter | — | North Dakota |
| 77 | Paul M. Russell | 57 | head | Farmer | Michigan |
| 78 | Stella Russell | 41 | wife | — | Minnesota |
| 79 | Douglas K. Russell | 13 | son | — | North Dakota |
| 80 | Jake L. Russell | 53 | brother | Farm Laborer | Michigan |
Pedigree Summary
Robert + 3 siblings
Gen 1 · 2 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)