MJ
Marvin Johnson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Mahnomen-County, Minnesota
Our Model Tree links this Marvin Johnson across the 1930 and 1940 US Censuses in Mahnomen-County, Minnesota (XGBoost, ~Confirmed) — first a son (b.~1928), then head of a 9-person household.
Age 12
b. ~1928
Male
Son
Born: Minnesota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Mahnomen-County, Minnesota |
| Surname | Johnson |
| Given Name | Marvin |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Mahnomen |
| 1935 Residence (County) | Mahnomen |
| Additional Details | |
| Highest Grade | 4 |
| 1935 Residence | Minnesota |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Township / Ward | Mahnomen Village |
| Est. Birth Year | ~1928 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Marvin | Age | Birth yr |
|---|---|---|---|---|
| Everette Johnson | Son | — | 21 | ~1919 |
| Francis Johnson | Son | — | 22 | ~1918 |
| William Johnson | Son | — | 3 | ~1937 |
| John Johnson | Son | — | 15 | ~1925 |
| Marvin Johnson | Son | — | 12 | ~1928 |
| Carol Johnson | Daughter | — | 10 | ~1930 |
| Frank Johnson | Head | — | 50 | ~1890 |
| Earl Johnson | Son | — | 18 | ~1922 |
| Lena Johnson | Spouse | — | 42 | ~1898 |
Census Appearances
1930
Mahnomen, Minnesota
Son, age 2
Mahnomen, Minnesota · implied b. ~1928 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Marvin |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | American Indian |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Mixed blood |
| Mother's Birthplace | Chippewa |
| Occupation | none |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Mahnomen-County, Minnesota
Son, age 12
Mahnomen-County, Minnesota · implied b. ~1928 — 9 household members
| Surname | Johnson |
| Given Name | Marvin |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Mahnomen |
| 1935 Residence (County) | Mahnomen |
| Highest Grade | 4 |
| 1935 Residence | Minnesota |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
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 Marvin Johnson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Marvin Johnson
Son · 1940 · age 12 · b. ~1928 · Minnesota
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Sibling
John Johnson
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Carol Johnson
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Francis Johnson
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Johnson
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Everette Johnson
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Earl Johnson
Sibling · 1940 · age 18
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 — Mahnomen-County, Minnesota
Open full size
1940 US Federal Census — Mahnomen-County, Minnesota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01936-00116)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Gladys Spaeth | 18 | Daughter | — | Minnesota |
| 2 | Virginia Spaeth | 16 | Daughter | — | Minnesota |
| 3 | Harold Spaeth | 14 | Son | — | Minnesota |
| 4 | Jerome Spaeth | 13 | Son | — | Minnesota |
| 5 | Agnes Ann Spaeth | 12 | Daughter | — | Minnesota |
| 6 | Theresa Spaeth | 11 | Daughter | — | Minnesota |
| 7 | Sylvester Spaeth | 10 | Son | — | Minnesota |
| 8 | Joseph Spaeth | 9 | Son | — | Minnesota |
| 9 | Kenneth Spaeth | 8 | Son | — | Minnesota |
| 10 | Patrick Spaeth | 7 | Son | — | Minnesota |
| 11 | John M. Spaeth | 5 | Son | — | Minnesota |
| 12 | Warren J. Spaeth | 3 | Son | — | Minnesota |
| 13 | Jay Kenyon | 66 | Head | Engineer | So. Dakota |
| 14 | Leonie Kenyon | 66 | Wife | — | Wisconsin |
| 15 | Beth Kenyon | 22 | Daughter | — | No. Dakota |
| 16 | Leona Kenyon | 23 | Daughter | Waitress | Minnesota |
| 17 | Guy Scott Kenyon | 4 | Grandson | — | Minnesota |
| 18 | Thomas Lee Kenyon | 3 | Grandson | — | Minnesota |
| 19 | Olaf Rice | 52 | Head | Manager | Minnesota |
| 20 | Ida Rice | 48 | Wife | — | Minnesota |
| 21 | Audrey Rice | 6 | Daughter | — | Minnesota |
| 22 | David Rice | 25 | Daughter | — | Minnesota |
| 23 | Gertrude Hesse | 26 | Maid | General Housework | Minnesota |
| 24 | John Arthur Hughes | 69 | Head | Minister | North Wales |
| 25 | Mary Emily Hughes | 69 | Wife | — | Detroit |
| 26 | Frank D. Johnson | 50 | Head | Sheriff | Minnesota |
| 27 | Lena Johnson | 42 | Wife | — | Minnesota |
| 28 | Francis Johnson | 22 | Son | Truck Driver | Minnesota |
| 29 | Earl Johnson | 18 | Son | Bread Wrapper | Minnesota |
| 30 | John Johnson | 15 | Son | Bread Wrapper | Minnesota |
| 31 | Marvin Johnson THIS PERSON | 12 | Son | — | Minnesota |
| 32 | Carol Johnson | 10 | Daughter | — | Minnesota |
| 33 | William Johnson | 3 | Son | — | Minnesota |
| 34 | Everette Johnson | 21 | Son | — | Minnesota |
| 35 | Charles F. Vondra | 48 | Head | Manager | Illinois |
| 36 | Evelyn J. Vondra | 36 | Wife | — | Minnesota |
| 37 | Carol M. Vondra | 13 | Daughter | — | Minnesota |
| 38 | Charles F. Jr. Vondra | 10 | Son | — | Minnesota |
| 39 | Marilyn J. Vondra | 3 | Daughter | — | Minnesota |
| 40 | Fred C. Waldner | 65 | Head | Trucking | Iowa |
Related Census Records
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)