AJ
Alex Johnson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Mchenry-County, North Dakota
Our Model Tree links this Alex Johnson across the 1930 and 1940 US Censuses in Mchenry-County, North Dakota (XGBoost, ~Confirmed) — first a head (b.~1891), then head of a 6-person household.
Age 49
b. ~1891
Male
Head
Born: Sweden
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Mchenry-County, North Dakota |
| Surname | Johnson |
| Given Name | Alex G. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Sweden |
| 1935 Residence (City) | R |
| 1935 Residence (County) | McHenry |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | North Dakota |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
| Occupation | Farmer |
| Township / Ward | Bantry Township |
| Est. Birth Year | ~1891 |
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 Alex | Age | Birth yr |
|---|---|---|---|---|
| Gerald Johnson | Son | — | 2 | ~1938 |
| Kenneth Johnson | Son | — | 17 | ~1923 |
| Lena Johnson | Spouse | — | 39 | ~1901 |
| Alex Johnson | Head | — | 49 | ~1891 |
| Paul Johnson | Son | — | 21 | ~1919 |
| Alma Johnson | Daughter | — | 13 | ~1927 |
Census Appearances
1930
Mchenry, North …
Head, age 39
Mchenry, North Dakota · implied b. ~1891 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Alex |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Sweden |
| Naturalization Status | Naturalized |
| Year of Immigration | 1911 |
| Age at First Marriage | 26 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Merchant |
| Industry | Business department |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Mother Tongue | Swedish |
| Home Owned/Rented | R |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
1940
Mchenry-County, North …
Head, age 49
Mchenry-County, North Dakota · implied b. ~1891 — 6 household members
| Surname | Johnson |
| Given Name | Alex G. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Sweden |
| 1935 Residence (City) | R |
| 1935 Residence (County) | McHenry |
| Naturalization Status | Naturalized |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | North Dakota |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
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 Alex Johnson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Alex Johnson
Head · 1940 · age 49 · b. ~1891 · 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
31 people indexed on this census page (nara:1940:m-t0627-03005-00311)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | M. H. Schuuman | 61 | Head | Farmer | Michigan |
| 42 | Bertha Schuuman | 63 | Wife | — | Indiana |
| 43 | Peter E. Anderson | 58 | Head | Farmer | Wisconsin |
| 44 | Wolford N. Wagar | 44 | Head | Farmer | North Dakota |
| 45 | Edith D. Wagar | 34 | Wife | — | Canada |
| 46 | Orville Oliver Wagar | 14 | Son | Farm Labor | North Dakota |
| 47 | Dollie Mae Wagar | 13 | Daughter | — | North Dakota |
| 48 | Viola Evelyn Wagar | 11 | Daughter | — | North Dakota |
| 49 | Mildred Edith Wagar | 9 | Daughter | — | North Dakota |
| 50 | Audrey Adele Wagar | 5 | Daughter | — | North Dakota |
| 51 | Roy Fecho | 31 | Head | Farmer | North Dakota |
| 52 | Allie Fecho | 30 | Wife | — | Illinois |
| 53 | Loretta Fecho | 10 | Daughter | — | North Dakota |
| 54 | Duane Fecho | 9 | Son | — | North Dakota |
| 55 | Wilbur Fecho | 7 | Son | — | North Dakota |
| 56 | George Smith | 59 | Head | Farmer | Ohio |
| 57 | Emma Smith | 57 | Wife | — | Ohio |
| 58 | William Bollinger | 66 | Head | — | Indiana |
| 59 | Katherine M. Bollinger | 56 | Wife | — | Iowa |
| 60 | W. R. Schadewald | 66 | Head | Grain Buyer | Germany |
| 61 | Frances Schadewald | 60 | Wife | — | Russia |
| 62 | Paul G. Schadewald | 20 | Son | — | North Dakota |
| 63 | Alex G. Johnson THIS PERSON | 49 | Head | Farmer | Sweden |
| 64 | Lena G. Johnson | 39 | Wife | — | North Dakota |
| 65 | Paul Alex Johnson | 21 | Son | Farm Laborer | North Dakota |
| 66 | Kenneth J. A. Johnson | 17 | Son | Labor | North Dakota |
| 67 | Alma Marie Johnson | 13 | Daughter | — | North Dakota |
| 68 | Gerald J. Johnson | 2 | Son | — | North Dakota |
| 69 | Egon Gissing | 20 | Head | Farmer | North Dakota |
| 70 | Alice Gissing | 27 | Wife | — | North Dakota |
| 71 | Eleanor Gissing | 2 | Daughter | — | North Dakota |
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)