RM
Robert Mcdonald — 1940 US Census Record
Model Tree available1940 United States Federal Census · Golden-Valley-County, North Dakota
Our Model Tree links this Robert Mcdonald across the 1920, 1930 and 1940 US Censuses in Golden-Valley-County, North Dakota (XGBoost, ~Confirmed), with identified parents Byron & Byron — first a son (b.~1907), then head of a 2-person household.
Age 33
b. ~1907
Male
Son
Born: North Dakota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Golden-Valley-County, North Dakota |
| Surname | McDonald |
| Given Name | Robert B. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Single |
| Birthplace | North Dakota |
| 1935 Residence (City) | Elk Creek township |
| 1935 Residence (County) | Golden Valley |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 20 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
| Occupation | Farmer |
| Township / Ward | Elk Creek Township |
| Est. Birth Year | ~1907 |
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 Robert | Age | Birth yr |
|---|---|---|---|---|
| Byron Mcdonald | Head | — | 68 | ~1872 |
| Robert Mcdonald | Son | — | 33 | ~1907 |
Census Appearances
1920
Golden Valley, …
Son, age 13
Golden Valley, North Dakota · implied b. ~1907 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mc Donald |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | North Dakota |
| Father's Birthplace | Michigan |
| Mother's Birthplace | North Dakota |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
1930
Golden Valley, …
Son, age 23
Golden Valley, North Dakota · implied b. ~1907 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McDonald |
| Given Name | Robert B. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | North Dakota |
| Father's Birthplace | Michigan |
| Mother's Birthplace | North Dakota |
| Occupation | Farm laborer |
| Industry | Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
1940
Golden-Valley-County, North …
Son, age 33
Golden-Valley-County, North Dakota · implied b. ~1907 — 2 household members
| Surname | McDonald |
| Given Name | Robert B. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Single |
| Birthplace | North Dakota |
| 1935 Residence (City) | Elk Creek township |
| 1935 Residence (County) | Golden Valley |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 20 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 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 Mcdonald across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Byron Mc Donald (~0.92 confidence) and father Byron Mcdonald (~0.92 confidence) and father Daniel Mcdonald (~0.92 confidence) and mother Bell Mc Donald (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Byron Mc Donald
b. ~1872
Source father
● Household
· direct · ~0.92
Father
Byron Mcdonald
b. ~1872
Source father
● Household
· direct · ~0.92
Father
Daniel Mcdonald
b. ~1873
Source father
● Household
· direct · ~0.92
Mother
Bell Mc Donald
b. ~1882
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Mcdonald
Son · 1940 · age 33 · b. ~1907 · North Dakota
★ 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 — Golden-Valley-County, North Dakota
Open full size
1940 US Federal Census — Golden-Valley-County, North Dakota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03001-00270)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ernest Barkland | 30 | Head | Farmer | Illinois |
| 2 | Flossie Barkland | 30 | Wife | — | South Dakota |
| 3 | Roger Barkland | 1 | Son | — | North Dakota |
| 4 | James H. Caston | 16 | Hired man | Farmer | North Dakota |
| 5 | Dick Kerr | 69 | Head | Farmer | Iowa |
| 6 | Max Kerr | 39 | Son | Farmer | Iowa |
| 7 | Donald D. Buell | 23 | Head | Farmer | North Dakota |
| 8 | Ida Buell | 26 | Wife | Teacher | Washington |
| 9 | Jack Buell | 1 | Son | — | North Dakota |
| 10 | Myron Castor | 40 | Head | Laborer | Minnesota |
| 11 | Hazel Castor | 37 | Wife | — | Wisconsin |
| 12 | Clifford Castor | 15 | Son | Laborer | North Dakota |
| 13 | Claude Castor | 13 | Son | — | North Dakota |
| 14 | Elvis Castor | 11 | Daughter | — | North Dakota |
| 15 | Patricia Castor | 8 | Daughter | — | North Dakota |
| 16 | Mary Caston | 69 | Head | — | Iowa |
| 17 | Byron Mcdonald | 68 | Head | Farmer | Michigan |
| 18 | Robert B. Mcdonald THIS PERSON | 33 | Son | Farmer | North Dakota |
| 19 | John Mcdonald | 37 | Head | Farmer | North Dakota |
| 20 | Ruby Mcdonald | 33 | Wife | — | Wisconsin |
| 21 | Eugene Mcdonald | 15 | Son | — | North Dakota |
| 22 | Evelyn Mcdonald | 13 | Daughter | — | North Dakota |
| 23 | Lester Mcdonald | 12 | Son | — | North Dakota |
| 24 | Robert Mcdonald | 11 | Son | — | North Dakota |
| 25 | Merlin Mcdonald | 5 | Son | — | North Dakota |
| 26 | Florence Mcdonald | 4 | Daughter | — | North Dakota |
| 27 | Ardis Mcdonald | 2 | Daughter | — | North Dakota |
| 28 | Harry T. Bailey | 59 | Head | Farmer | Illinois |
| 29 | Cora May Bailey | 60 | Wife | — | Iowa |
| 30 | Emmett D. Bailey | 35 | Son | Farmer | Iowa |
| 31 | Phillip Elbertson | 27 | Hired man | Laborer | Minnesota |
| 32 | Clifford Van Horn | 35 | Hired man | Laborer | North Dakota |
| 33 | Clarence Satre | 31 | Head | Farmer | Minnesota |
| 34 | Gladys Satre | 28 | Wife | — | North Dakota |
| 35 | Jordice Satre | 6 | Daughter | — | North Dakota |
| 36 | Clayton Satre | 4 | Son | — | North Dakota |
| 37 | James Satre | 1 | Son | — | North Dakota |
| 38 | Ivar Carlson | 40 | Lodger | Herder | Sweden |
| 39 | Teddy Blue | 34 | Head | Farmer | North Dakota |
| 40 | Emelia Blue | 27 | Wife | Teacher | North Dakota |
Pedigree Summary
Robert
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)