OA
Ole Anderson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Mchenry-County, North Dakota
Our Model Tree links this Ole Anderson across the 1910, 1920, 1930 and 1940 US Censuses in Mchenry-County, North Dakota (XGBoost, ~Confirmed), with identified parents Andrew & Andrew — first a son (b.~1906), then head of a 3-person household.
Age 34
b. ~1906
Male
Son
Born: North Dakota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Mchenry-County, North Dakota |
| Surname | Anderson |
| Given Name | Ole C. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Single |
| Birthplace | North Dakota |
| 1935 Residence (City) | Normal 158-75 |
| 1935 Residence (County) | McHenry |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 52 |
| 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 | Normal 15875 |
| Est. Birth Year | ~1906 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Ole | Age | Birth yr |
|---|---|---|---|---|
| Christine Anderson | Spouse | — | 79 | ~1861 |
| Andrew Anderson | Head | — | 70 | ~1870 |
| Ole Anderson | Son | — | 34 | ~1906 |
Census Appearances
1910
Mc Henry, …
Son, age 4
Mc Henry, North Dakota · implied b. ~1906 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Anderson |
| Given Name | Ole C. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | North Dakota |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
1920
Mchenry, North …
Son, age 14
Mchenry, North Dakota · implied b. ~1906 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Anderson |
| Given Name | Ole B. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | North Dakota |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
1930
Mchenry, North …
Son, age 24
Mchenry, North Dakota · implied b. ~1906 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Anderson |
| Given Name | Ole C. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | North Dakota |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Can Read/Write | Yes |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
1940
Mchenry-County, North …
Son, age 34
Mchenry-County, North Dakota · implied b. ~1906 — 3 household members
| Surname | Anderson |
| Given Name | Ole C. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Single |
| Birthplace | North Dakota |
| 1935 Residence (City) | Normal 158-75 |
| 1935 Residence (County) | McHenry |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 52 |
| 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 Ole Anderson across 4 US Census years (1910, 1920, 1930 and 1940) in 3 locations, using XGBoost record linkage. Identified parents: father Andrew Anderson (~0.92 confidence) and father Andrew Anderson (~0.92 confidence) and father Andrew Anderson (~0.92 confidence) and father Andrew Anderson (~0.92 confidence) and mother Christina Anderson (~0.92 confidence) and mother Christine Anderson (~0.92 confidence) and mother Kristine Anderson (~0.92 confidence). The pedigree spans 1 generation with 7 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Andrew Anderson
b. ~1870
Source father
● Household
· direct · ~0.92
Father
Andrew Anderson
b. ~1870
Source father
● Household
· direct · ~0.92
Father
Andrew Anderson
b. ~1870
Source father
● Household
· direct · ~0.92
Father
Andrew Anderson
b. ~1870
Source father
● Household
· direct · ~0.92
Mother
Christina Anderson
b. ~1861
Source mother
● Household
· direct · ~0.92
Mother
Christine Anderson
b. ~1861
Source mother
● Household
· direct · ~0.92
Mother
Kristine Anderson
b. ~1866
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Ole Anderson
Son · 1940 · age 34 · b. ~1906 · 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 — Mchenry-County, North Dakota
Open full size
1940 US Federal Census — Mchenry-County, North Dakota
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-03005-00566)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Andrew Anderson | 70 | Head | Farmer | Norway |
| 42 | Christine Anderson | 79 | Wife | — | Norway |
| 43 | Ole C. Anderson THIS PERSON | 34 | Son | Farmer | North Dakota |
| 44 | Lawrence Johnson | 40 | Head | Laborer | North Dakota |
| 45 | Martha E. Johnson | 34 | Wife | — | North Dakota |
| 46 | Leland M. Johnson | 10 | Daughter | — | North Dakota |
| 47 | Doreen C. Johnson | 8 | Daughter | — | North Dakota |
| 48 | Joan C. Johnson | 6 | Daughter | — | North Dakota |
| 49 | Marlys L. Johnson | 4 | Daughter | — | North Dakota |
| 50 | Ardith B. Johnson | 1 | Daughter | — | North Dakota |
| 51 | Ole M. Fosness | 51 | Head | Farmer | North Dakota |
| 52 | Marie Fosness | 44 | Wife | — | Norway |
| 53 | Harold M. Fosness | 19 | Son | Helper | North Dakota |
| 54 | Virginia Fosness | 18 | Daughter | Helper | North Dakota |
| 55 | Peter Fosness | 16 | Son | Helper | North Dakota |
| 56 | Mary Fosness | 14 | Daughter | — | North Dakota |
| 57 | Ole Jr. Fosness | 13 | Son | — | North Dakota |
| 58 | Dorothy Fosness | 11 | Daughter | — | North Dakota |
| 59 | Norman Fosness | 9 | Son | — | North Dakota |
| 60 | Lilly Fosness | 7 | Daughter | — | North Dakota |
| 61 | Mae Fosness | 5 | Daughter | — | North Dakota |
| 62 | Alice Fosness | 3 | Daughter | — | North Dakota |
| 63 | Einar Fosness | 0 | Son | — | North Dakota |
| 64 | Fred P. Walker | 34 | Head | Farmer | North Dakota |
| 65 | Mable Walker | 37 | Wife | — | North Dakota |
| 66 | Carl D. Isaacson | 63 | Head | Farmer | North Dakota |
| 67 | Dorthy Isaacson | 61 | Wife | — | North Dakota |
| 68 | Isaac Isaacson | 32 | Son | Laborer | North Dakota |
| 69 | James Isaacson | 26 | Son | Laborer-Able | North Dakota |
| 70 | Doris Isaacson | 22 | Daughter | Helper | North Dakota |
| 71 | Hazel Isaacson | 19 | Daughter | Helper | North Dakota |
| 72 | Hans Isaacson | 30 | Son | Farmer | North Dakota |
| 73 | Elvina Isaacson | 22 | Daughter-in-law | — | North Dakota |
| 74 | Janis Isaacson | 0 | Granddaughter | — | North Dakota |
| 75 | Albert P. Holm | 29 | Head | Farmer | North Dakota |
| 76 | Bertha Holm | 31 | Wife | — | North Dakota |
| 77 | Edgar E. Niles | 67 | Head | Farmer | Vermont |
| 78 | Edith Niles | 59 | Wife | — | Nebraska |
| 79 | John P. Niles | 34 | Son | Farmer | North Dakota |
Pedigree Summary
Ole
Gen 1 · 7 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)