CJ
Clifford Johnson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Mountrail-County, North Dakota
Our Model Tree links this Clifford Johnson across the 1920, 1930 and 1940 US Censuses in Mountrail-County, North Dakota (XGBoost, ~Confirmed), with identified parents Andrew & Andrew — first a son (b.~1911), then head of a 4-person household.
Age 29
b. ~1911
Male
Son
Born: North Dakota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Mountrail-County, North Dakota |
| Surname | Johnson |
| Given Name | Clifford |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | North Dakota |
| 1935 Residence (City) | Idaho Township |
| 1935 Residence (County) | Mountrail |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | NP |
| Hours Worked | 70 |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
| Occupation | Farmer |
| Township / Ward | Idaho Township |
| Est. Birth Year | ~1911 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Clifford | Age | Birth yr |
|---|---|---|---|---|
| Andrew Johnson | Head | — | 66 | ~1874 |
| Clifford Johnson | Son | — | 29 | ~1911 |
| Dolky Johnson | Son | — | 24 | ~1916 |
| Annie Johnson | Spouse | — | 59 | ~1881 |
Census Appearances
1920
Mountrail, North …
Son, age 8
Mountrail, North Dakota · implied b. ~1912 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Clifford |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | North Dakota |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
1930
Mountrail, North …
Son, age 19
Mountrail, North Dakota · implied b. ~1911 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Clifford |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | North Dakota |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Can Read/Write | Yes |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
1940
Mountrail-County, North …
Son, age 29
Mountrail-County, North Dakota · implied b. ~1911 — 4 household members
| Surname | Johnson |
| Given Name | Clifford |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | North Dakota |
| 1935 Residence (City) | Idaho Township |
| 1935 Residence (County) | Mountrail |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | NP |
| Hours Worked | 70 |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 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 Clifford Johnson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Andrew Johnson (~0.92 confidence) and father Andrew Johnson (~0.92 confidence) and father Andrew Johnson (~0.92 confidence) and mother Anna Johnson (~0.92 confidence) and mother Anna Johnson (~0.92 confidence) and mother Annie Johnson (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Andrew Johnson
b. ~1873
Source father
● Household
· direct · ~0.92
Father
Andrew Johnson
b. ~1874
Source father
● Household
· direct · ~0.92
Father
Andrew Johnson
b. ~1874
Source father
● Household
· direct · ~0.92
Mother
Anna Johnson
b. ~1881
Source mother
● Household
· direct · ~0.92
Mother
Anna Johnson
b. ~1881
Source mother
● Household
· direct · ~0.92
Mother
Annie Johnson
b. ~1881
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Clifford Johnson
Son · 1940 · age 29 · b. ~1911 · North Dakota
★ You are viewing this record
Sibling
Dolky Johnson
Sibling · 1940 · age 24
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 — Mountrail-County, North Dakota
Open full size
1940 US Federal Census — Mountrail-County, North Dakota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03008-00089)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Isaac Svendseid | 57 | Wife | — | Minnesota |
| 2 | Anton T. Peterson | 39 | Head | Laborer | Minnesota |
| 3 | Anna Peterson | 37 | Wife | Cook | Minnesota |
| 4 | Karen Jelleed | 72 | Head | — | Wisconsin |
| 5 | Benjamin Jelleed | 44 | Son | Farmer | Minnesota |
| 6 | Andrew Johnson | 66 | Head | Farmer | Sweden |
| 7 | Annie Johnson | 59 | Wife | — | Sweden |
| 8 | Clifford Johnson THIS PERSON | 29 | Son | Farmer | North Dakota |
| 9 | Dolky Johnson | 24 | Son | Farmer | North Dakota |
| 10 | Oscar Kloster | 39 | Head | Farmer | Minnesota |
| 11 | Olga Kloster | 37 | Wife | — | Michigan |
| 12 | Norman Kloster | 7 | Son | — | North Dakota |
| 13 | Eugene Kloster | 4 | Son | — | North Dakota |
| 14 | Palmer Kloster | 39 | Head | Farmer | Minnesota |
| 15 | Sophie Kloster | 31 | Wife | — | Minnesota |
| 16 | Philip Kloster | 8 | Son | — | Minnesota |
| 17 | Harlan Wong | 28 | Head | Farmer | North Dakota |
| 18 | Evelyn Wong | 31 | Wife | Farmer | North Dakota |
| 19 | Jerome Wong | 7 | Son | — | North Dakota |
| 20 | Harold Wong | 5 | Son | — | North Dakota |
| 21 | Richard Wong | 1 | Son | — | North Dakota |
| 22 | Robert Smith | 20 | Laborer | Laborer | North Dakota |
| 23 | David J. Buckman | 47 | Head | Laborer | Sweden |
| 24 | Nettie Buckman | 37 | Wife | — | Minnesota |
| 25 | Arnold Buckman | 13 | Son | — | North Dakota |
| 26 | Milton Buckman | 11 | Son | — | North Dakota |
| 27 | Delores Buckman | 8 | Daughter | — | North Dakota |
| 28 | Oscar Buckman | 5 | Son | — | North Dakota |
| 29 | Calvin Buckman | 4 | Son | — | North Dakota |
| 30 | Cecelia Buckman | 0 | Daughter | — | North Dakota |
| 31 | John L. Nelson | 42 | Head | Farmer | Minnesota |
| 32 | Clara Nelson | 39 | Wife | — | Minnesota |
| 33 | Charlotte Nelson | 16 | Daughter | Laborer | North Dakota |
| 34 | Janet Nelson | 12 | Daughter | — | North Dakota |
| 35 | Lois Nelson | 8 | Daughter | — | North Dakota |
| 36 | Lavonne Nelson | 5 | Daughter | — | North Dakota |
| 37 | Donna Nelson | 4 | Daughter | — | North Dakota |
| 38 | Jacqueline Nelson | 1 | Daughter | — | North Dakota |
| 39 | Andrew Carlson | 76 | Head | Farmer | Sweden |
| 40 | Inga Carlson | 66 | Wife | — | Sweden |
Pedigree Summary
Clifford + 1 sibling
Gen 1 · 6 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)