JH
John Hoffman — 1940 US Census Record
Model Tree available1940 United States Federal Census · Ontonagon-County, Michigan
Our Model Tree links this John Hoffman across the 1920, 1930 and 1940 US Censuses in Ontonagon-County, Michigan (XGBoost, ~Confirmed), with identified parents John & Mabel — first a head (b.~1910), then head of a 9-person household.
Age 30
b. ~1910
Male
Head
Born: Michigan
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Ontonagon-County, Michigan |
| Surname | Hoffman |
| Given Name | John Jr. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Michigan |
| 1935 Residence (City) | Rockland |
| 1935 Residence (County) | Ontonagon |
| Additional Details | |
| Occupation | Trammer |
| Industry | Mining |
| Class of Worker | PW |
| Income (1939) | 1125 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Occupation | Trammer |
| Township / Ward | Rockland |
| 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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Corinne Hoffman | Daughter | — | 1 | ~1939 |
| Theresa Hoffman | Daughter | — | 2 | ~1938 |
| John Hoffman | Head | — | 30 | ~1910 |
| John Hoffman | Son | — | 8 | ~1932 |
| Glenn Hoffman | Son | — | ~1940 | |
| Donald Hoffman | Son | — | 6 | ~1934 |
| Robert Hoffman | Son | — | 4 | ~1936 |
| Lewis Hoffman | Son | — | 3 | ~1937 |
| Matilda Hoffman | Spouse | — | 30 | ~1910 |
Census Appearances
1920
Ontonagon, Michigan
Son, age 9
Ontonagon, Michigan · implied b. ~1911 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hoffman |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Speaks English | Yes |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1930
Ontonagon, Michigan
Son, age 20
Ontonagon, Michigan · implied b. ~1910 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hoffman |
| Given Name | John Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Occupation | Laborer |
| Industry | Odd jobs |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Ontonagon-County, Michigan
Head, age 30
Ontonagon-County, Michigan · implied b. ~1910 — 9 household members
| Surname | Hoffman |
| Given Name | John Jr. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Michigan |
| 1935 Residence (City) | Rockland |
| 1935 Residence (County) | Ontonagon |
| Occupation | Trammer |
| Industry | Mining |
| Class of Worker | PW |
| Income (1939) | 1125 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
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 John Hoffman across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Hoffman (~0.92 confidence) and mother Mabel Hoffman (~0.92 confidence) and father John Hoffman (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Hoffman
b. ~1870
Source father
● Household
· direct · ~0.92
Mother
Mabel Hoffman
b. ~1885
Source mother
● Household
· direct · ~0.92
Father
John Hoffman
b. ~1888
Source father
● Household
· direct · ~0.92
This person
Anchor record
John Hoffman
Head · 1940 · age 30 · b. ~1910 · Michigan
★ 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 — Ontonagon-County, Michigan
Open full size
1940 US Federal Census — Ontonagon-County, Michigan
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01806-00567)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | June Pierce | 24 | Patient | — | Illinois |
| 2 | Joseph Petarsky | 64 | Patient | — | Poland |
| 3 | Martha Larsen | 30 | Nurse | Nurse | Wisconsin |
| 4 | Gustave Chastney | 76 | Head | — | Michigan |
| 5 | Mary Chastney | 75 | Wife | — | Michigan |
| 6 | Norbert Chastney | 36 | Son | — | Michigan |
| 7 | James Rutger | 38 | Head | Recreation Leader | Illinois |
| 8 | Vida Rutger | 40 | Wife | — | Michigan |
| 9 | James Rutger | 9 | Son | — | Michigan |
| 10 | Norman Rutger | 6 | Son | — | Michigan |
| 11 | Emma Jeffs | 74 | Head | — | Michigan |
| 12 | Francis Jeffs | 64 | Brother | Institutional Supervisor | Michigan |
| 13 | Jeannette Jeffs | 60 | Sister | — | Michigan |
| 14 | John Jr. Hoffman THIS PERSON | 30 | Head | Trammer | Michigan |
| 15 | Matilda Hoffman | 30 | Wife | — | Michigan |
| 16 | John Iii Hoffman | 8 | Son | — | Michigan |
| 17 | Donald Hoffman | 6 | Son | — | Michigan |
| 18 | Robert Hoffman | 4 | Son | — | Michigan |
| 19 | Lewis Hoffman | 3 | Son | — | Michigan |
| 20 | Theresa Hoffman | 2 | Daughter | — | Michigan |
| 21 | Corinne Hoffman | 1 | Daughter | — | Michigan |
| 22 | Glenn Hoffman | 0 | Son | — | Michigan |
| 23 | John Lind | 54 | Head | Carpenter | Sweden |
| 24 | Rose Lind | 54 | Wife | — | Michigan |
| 25 | Arthur Laplant | 31 | Stepson | Laborer | Michigan |
| 26 | John Burke | 26 | Stepson | Laborer | Michigan |
| 27 | Walter Burke | 17 | Stepson | Helper | Michigan |
| 28 | Henry Lohman | 45 | Head | Carpenter | Michigan |
| 29 | Loretta Lohman | 17 | Daughter | — | Michigan |
| 30 | Jeanette Lohman | 16 | Daughter | — | Michigan |
| 31 | Elaine Lohman | 4 | Daughter | — | Michigan |
| 32 | Edwin Paulson | 30 | Head | Laborer | Michigan |
| 33 | Harriet Paulson | 27 | Wife | — | Michigan |
| 34 | Evelyn Paulson | 4 | Daughter | — | Michigan |
| 35 | David Paulson | 3 | Son | — | Michigan |
| 36 | Otto Paulson | 69 | Head | — | Norway |
| 37 | Anna Paulson | 69 | Wife | — | Norway |
| 38 | Hartwick Paulson | 33 | Son | Laborer | Michigan |
| 39 | Anna Fredrickson | 73 | Head | — | Sweden |
Pedigree Summary
John
Gen 1 · 3 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)