LJ
Leonard Johnson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Ramsey-County, Minnesota
Our Model Tree links this Leonard Johnson across the 1910, 1920, 1930 and 1940 US Censuses in Ramsey-County, Minnesota (XGBoost, ~Confirmed), with identified parents Enoch & Eric — first a head (b.~1910), then head of a 3-person household.
Age 30
b. ~1910
Male
Head
Born: Minnesota
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Ramsey-County, Minnesota |
| Surname | Johnson |
| Given Name | Leonard |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Minnesota |
| 1935 Residence (City) | St. Paul City |
| 1935 Residence (County) | Ramsey County |
| Additional Details | |
| Occupation | Laborer |
| Industry | Automobile Assembly Plant |
| Class of Worker | PW |
| Hours Worked | 15 |
| Income (1939) | 564 |
| Highest Grade | H 2 |
| 1935 Residence | Same House |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Occupation | Laborer |
| Township / Ward | St Paul City |
| Est. Birth Year | ~1910 |
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 Leonard | Age | Birth yr |
|---|---|---|---|---|
| Marlene Johnson | Daughter | — | 3 | ~1937 |
| Leonard Johnson | Head | — | 30 | ~1910 |
| Madeline Johnson | Spouse | — | 26 | ~1914 |
Census Appearances
1910
Hennepin, Minnesota
Son, age 1
Hennepin, Minnesota · implied b. ~1909 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Leonard |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Minnesota |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1920
Ramsey, Minnesota
Son, age 11
Ramsey, Minnesota · implied b. ~1909 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Leonard |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1930
Ramsey, Minnesota
Son, age 20
Ramsey, Minnesota · implied b. ~1910 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Leonard |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Salesman |
| Industry | Department Store |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Ramsey-County, Minnesota
Head, age 30
Ramsey-County, Minnesota · implied b. ~1910 — 3 household members
| Surname | Johnson |
| Given Name | Leonard |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Minnesota |
| 1935 Residence (City) | St. Paul City |
| 1935 Residence (County) | Ramsey County |
| Occupation | Laborer |
| Industry | Automobile Assembly Plant |
| Class of Worker | PW |
| Hours Worked | 15 |
| Income (1939) | 564 |
| Highest Grade | H 2 |
| 1935 Residence | Same House |
| 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 Leonard Johnson across 4 US Census years (1910, 1920, 1930 and 1940) in 3 locations, using XGBoost record linkage. Identified parents: father Enoch Johnson (~0.92 confidence) and father Eric Johnson (~0.92 confidence) and father John Johnson (~0.92 confidence) and mother Nettie Johnson (~0.92 confidence) and mother Hilda Johnson (~0.92 confidence) and mother Hilda Johnson (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Enoch Johnson
b. ~1858
Source father
● Household
· direct · ~0.92
Father
Eric Johnson
b. ~1858
Source father
● Household
· direct · ~0.92
Father
John Johnson
b. ~1862
Source father
● Household
· direct · ~0.92
Mother
Nettie Johnson
b. ~1870
Source mother
● Household
· direct · ~0.92
Mother
Hilda Johnson
b. ~1883
Source mother
● Household
· direct · ~0.92
Mother
Hilda Johnson
b. ~1884
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Leonard Johnson
Head · 1940 · age 30 · b. ~1910 · Minnesota
★ 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 — Ramsey-County, Minnesota
Open full size
1940 US Federal Census — Ramsey-County, Minnesota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02001-00500)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Carl F. Jacobson | 53 | Head | Wood Worker | Minnesota |
| 2 | John Lindhart | 33 | Head | Machine Operator | Wisconsin |
| 3 | Mary Lindhart | 25 | Wife | Proprietress | Minnesota |
| 4 | John Jr. Lindhart | 2 | Son | — | — |
| 5 | Elmer Nienow | 22 | Brother-in-law | Helper | Minnesota |
| 6 | Roy V. Macdonald | 50 | Head | Paper Cutter | Massachusetts |
| 7 | Frances Macdonald | 44 | Wife | — | South Dakota |
| 8 | David Johnson | 48 | Head | Steam Fitter | Wisconsin |
| 9 | Alma Johnson | 46 | Wife | — | Wisconsin |
| 10 | Lorraine Johnson | 23 | Daughter | Stenographer | Minnesota |
| 11 | Carol Johnson | 19 | Daughter | — | Wisconsin |
| 12 | Dean Johnson | 17 | Son | — | Wisconsin |
| 13 | Leonard Johnson THIS PERSON | 30 | Head | Laborer | Minnesota |
| 14 | Madeline Johnson | 26 | Wife | — | Minnesota |
| 15 | Marlene Johnson | 3 | Daughter | — | — |
| 16 | John Laverne | 29 | Head | Supervisor Of Adjustments | Germany |
| 17 | Milna Laverne | 29 | Wife | Teacher | Iowa |
| 18 | — | None | — | — | — |
| 19 | John W. Jorgenson | 42 | Head | Night Watchman | Minnesota |
| 20 | Jorgen G. Jorgenson | 50 | Brother | Electrician | Minnesota |
| 21 | Dorothy G. Hazelton | 26 | Niece | — | Minnesota |
| 22 | Clara Graham | 57 | Head | — | Iowa |
| 23 | Arthur Lien | 41 | Head | Traveling Passenger Agent | Minnesota |
| 24 | Selma Lien | 54 | Wife | — | Minnesota |
| 25 | Richard Lien | 20 | Son | Stock Boy | Minnesota |
| 26 | Einer Erickson | 59 | Head | Salesman | Norway |
| 27 | Dorothea Erickson | 59 | Wife | — | Germany |
| 28 | Marion Erickson | 28 | Daughter | Inspector Playing Cards | Minnesota |
| 29 | Harold Alan Erickson | 26 | Son | Mechanic | Minnesota |
| 30 | John Papin | 29 | Head | Treasurer | Minnesota |
| 31 | Margaret Papin | 28 | Wife | — | Canada, English |
| 32 | Maynard Mauseth | 29 | Head | Artist | Minnesota |
| 33 | Ida Mauseth | 25 | Wife | — | Minnesota |
| 34 | Dennis Mauseth | 2 | Son | — | — |
| 35 | Jean Mauseth | 0 | Daughter | — | — |
| 36 | Jens Jensen | 44 | Head | Motorman & Conductor | Minnesota |
| 37 | Lillian Jensen | 35 | Wife | — | Minnesota |
| 38 | Marlyn Jensen | 9 | Son | — | Minnesota |
| 39 | Karen L. Jensen | 0 | Daughter | — | — |
| 40 | Virginia Harper | 20 | Lodger | — | Kansas |
Pedigree Summary
Leonard
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)