MJ
Martin Johnson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cass-County, North Dakota
Our Model Tree links this Martin Johnson across the 1910, 1920, 1930 and 1940 US Censuses in Cass-County, North Dakota (XGBoost, ~Confirmed) — first a head (b.~1874), then head of a 3-person household.
Age 66
b. ~1874
Male
Head
Born: Wisconsin
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cass-County, North Dakota |
| Surname | Johnson |
| Given Name | Martin M. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 66 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Fargo city |
| 1935 Residence (County) | Cass |
| Additional Details | |
| Occupation | Janitor |
| Industry | public school |
| Class of Worker | GW |
| Hours Worked | 54 |
| Income (1939) | 1150 |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
| Occupation | Janitor |
| Township / Ward | Fargo City |
| Est. Birth Year | ~1874 |
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 Martin | Age | Birth yr |
|---|---|---|---|---|
| Marjorie Johnson | Daughter | — | 25 | ~1915 |
| Martin Johnson | Head | — | 66 | ~1874 |
| Barbara Johnson | Spouse | — | 62 | ~1878 |
Census Appearances
1910
Cass, North …
Head, age 34
Cass, North Dakota · implied b. ~1876 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Martin N. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| Years Married | 3 |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Wisconsin |
| Occupation | Laborer |
| Industry | Freight House |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1920
Cass, North …
Head, age 45
Cass, North Dakota · implied b. ~1875 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Martin |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Wisconsin |
| Occupation | Shipping Clerk |
| Industry | Oil Co |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | M |
| Birth State | Wisconsin |
| Birth Country | United States |
| Year of Naturalization | O |
| Birthplace (normalized) | wisconsin |
1930
Cass, North …
Head, age 55
Cass, North Dakota · implied b. ~1875 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Martin |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| Age at First Marriage | 33 |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Wisconsin |
| Occupation | Janitor |
| Industry | Public School |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 4000 |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1940
Cass-County, North …
Head, age 66
Cass-County, North Dakota · implied b. ~1874 — 3 household members
| Surname | Johnson |
| Given Name | Martin M. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 66 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Fargo city |
| 1935 Residence (County) | Cass |
| Occupation | Janitor |
| Industry | public school |
| Class of Worker | GW |
| Hours Worked | 54 |
| Income (1939) | 1150 |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
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 Martin Johnson across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Martin Johnson
Head · 1940 · age 66 · b. ~1874 · North Dakota
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Cass-County, North Dakota
Open full size
1940 US Federal Census — Cass-County, North Dakota
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-02996-00451)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Martin M. Johnson THIS PERSON | 66 | Head | Janitor | Wisconsin |
| 2 | Barbara Johnson | 62 | Wife | — | Norway |
| 3 | Marjorie Johnson | 25 | Daughter | — | North Dakota |
| 4 | Harold Aspen | 33 | Head | Bookkeeper | Minnesota |
| 5 | Agnes P. Aspen | 30 | Wife | — | North Dakota |
| 6 | Donald D. Aspen | 2 | Son | — | North Dakota |
| 7 | Max D. Johnson | 20 | Lodger | Stenographer | North Dakota |
| 8 | Mabel Rita Mathews | 73 | Head | — | Canada-English |
| 9 | Annabelle Mcrae | 73 | Sister | — | Canada-English |
| 10 | Theodore W. Rohde | 33 | Lodger | Night Watchman | Minnesota |
| 11 | Joseph A. Duval | 53 | Lodger | Shop Work & Clock Cleaning | North Dakota |
| 14 | Ross J. Ammerman | 43 | Lodger | Telephone Inspector | Iowa |
| 15 | Oscar H. Guseman | 49 | Head | Helper | North Dakota |
| 16 | Elna A. Guseman | 46 | Wife | — | Minnesota |
| 17 | Enid S. Guseman | 21 | Daughter | Clerical Office Work | North Dakota |
| 18 | Joyce N. Guseman | 14 | Daughter | — | North Dakota |
| 19 | Idine H. Guseman | 2 | Daughter | — | North Dakota |
| 20 | Clifford Heming | 39 | Lodger | Bookkeeper | North Dakota |
| 21 | Oscar Hagilstad | 54 | Head | Painter | Norway |
| 22 | Janette Hagilstad | 52 | Wife | — | North Dakota |
| 23 | Elizabeth Hagilstad | 18 | Daughter | — | North Dakota |
| 24 | Gordon Phillips | 24 | Head | Electrician | Minnesota |
| 25 | Joyce M. Phillips | 21 | Wife | Saleslady | Canada-English |
| 26 | Beverly Phillips | 4 | Daughter | — | North Dakota |
| 27 | Dorothy Phillips | 27 | Sister | Housekeeper | Minnesota |
| 28 | Fern Bredemier | 25 | Lodger | Stenographer | Minnesota |
| 29 | Walter J. Freeman | 22 | Head | Window Trimmer | Minnesota |
| 30 | Anna B. Freeman | 25 | Wife | — | South Dakota |
| 31 | Susanne M. Freeman | 1 | Daughter | — | North Dakota |
| 32 | Robert Reid Mulholland | 34 | Head | Truck Driver | Minnesota |
| 33 | Hazel S. Mulholland | 37 | Wife | — | North Dakota |
| 34 | Elaine M. Mulholland | 11 | Daughter | — | North Dakota |
| 35 | Dale Robert Mulholland | 11 | Son | — | North Dakota |
| 36 | Beatrice Rae Mulholland | 5 | Daughter | — | North Dakota |
| 37 | David Karl Mulholland | 0 | Son | — | North Dakota |
| 38 | James F. Colahan | 61 | Head | Laborer | Minnesota |
| 39 | Alice B. Colahan | 58 | Wife | — | Minnesota |
| 40 | Dorothy Colahan | 21 | Daughter | Waitress | Minnesota |
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)