JH
John Hart — 1940 US Census Record
Model Tree available1940 United States Federal Census · Hennepin-County, Minnesota
Our Model Tree links this John Hart across the 1920, 1930 and 1940 US Censuses in Hennepin-County, Minnesota (XGBoost, ~Confirmed), with identified parents William & Mary — first a head (b.~1893), then head of a 3-person household.
Age 47
b. ~1893
Male
Head
Born: Minnesota
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Hennepin-County, Minnesota |
| Surname | Hart |
| Given Name | John T Jr |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Minnesota |
| 1935 Residence (City) | Edina Village |
| 1935 Residence (County) | Hennepin |
| Additional Details | |
| Occupation | Insurance agent |
| Industry | Casualty Co |
| Class of Worker | PW |
| Hours Worked | 35 |
| Income (1939) | 3000 |
| Highest Grade | Hs 2 |
| 1935 Residence | Same place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Occupation | Insurance Agent |
| Township / Ward | Edina Village |
| Est. Birth Year | ~1893 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| John Hart | Head | — | 47 | ~1893 |
| John Hart | Son | — | 14 | ~1926 |
| Marie Hart | Spouse | — | 39 | ~1901 |
Census Appearances
1920
Hennepin, Minnesota
Son, age 26
Hennepin, Minnesota · implied b. ~1894 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hart |
| Given Name | John F. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Illinois |
| Mother's Birthplace | New Jersey |
| Occupation | construction |
| Industry | mechanical shop |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1930
Hennepin, Minnesota
Head, age 35
Hennepin, Minnesota · implied b. ~1895 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hart |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Minnesota |
| Age at First Marriage | 32 |
| Father's Birthplace | Illinois |
| Mother's Birthplace | New Jersey |
| Occupation | Grain Sampler |
| Industry | State Employee |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 7000 |
| Radio Set | R |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Hennepin-County, Minnesota
Head, age 47
Hennepin-County, Minnesota · implied b. ~1893 — 3 household members
| Surname | Hart |
| Given Name | John T Jr |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Minnesota |
| 1935 Residence (City) | Edina Village |
| 1935 Residence (County) | Hennepin |
| Occupation | Insurance agent |
| Industry | Casualty Co |
| Class of Worker | PW |
| Hours Worked | 35 |
| Income (1939) | 3000 |
| Highest Grade | Hs 2 |
| 1935 Residence | Same place |
| 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 John Hart across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father William Hart (~0.92 confidence) and mother Mary Hart (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Hart
b. ~1858
Source father
● Household
· direct · ~0.92
Mother
Mary Hart
b. ~1863
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Hart
Head · 1940 · age 47 · b. ~1893 · 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 — Hennepin-County, Minnesota
Open full size
1940 US Federal Census — Hennepin-County, Minnesota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01924-00823)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Mabel Simpson | 37 | Wife | Cook | Minnesota |
| 42 | Leon Mcclellan | 46 | Head | Owner | Minnesota |
| 43 | Mary M Mcclellan | 46 | Wife | — | Minnesota |
| 44 | Loraine Mcclellan | 18 | Daughter | — | Minnesota |
| 45 | Rose Mary Mcclellan | 7 | Daughter | — | Minnesota |
| 46 | Edward F Volk | 41 | Head | Lease Gas | Minnesota |
| 47 | Ruth M Volk | 35 | Wife | — | Minnesota |
| 48 | Virginia Volk | 4 | Daughter | — | Minnesota |
| 49 | Gardner English | 29 | Head | Manager | Minnesota |
| 50 | Jean English | 27 | Wife | — | Minnesota |
| 51 | F Wm Nebelthau | 34 | Head | Insurance Clerk | Minnesota |
| 52 | Helen Nebelthau | 31 | Wife | — | Minnesota |
| 53 | Mary Susan Nebelthau | 3 | Daughter | — | Minnesota |
| 54 | Linda Nebelthau | 1 | Daughter | — | Minnesota |
| 55 | Elmer Morris | 24 | Head | Advertising Man | So Dakota |
| 56 | Shirley Morris | 23 | Wife | — | Minnesota |
| 57 | Everett Mclaughlin | 54 | Head | Owner | Minnesota |
| 58 | Mildred Bathrick | 36 | Niece | — | Minnesota |
| 59 | Mary Lou Bathrick | 18 | Great niece | — | Minnesota |
| 60 | Jo Ann Bathrick | 14 | Great niece | — | Minnesota |
| 61 | Theodora Bathrick | 6 | Great niece | — | Minnesota |
| 62 | Milan Evans | 45 | Head | Exec | Wisconsin |
| 63 | Dorothy K Evans | 39 | Wife | — | Minnesota |
| 64 | Geo E Connery | 33 | Head | Wine Editor | Minnesota |
| 65 | Marie Connery | 33 | Wife | Society Editor | Minnesota |
| 66 | Wm Hochstaetter | 71 | Father in law | — | Minnesota |
| 67 | Veronica Hochstaetter | 58 | Mother in law | — | Minnesota |
| 68 | John T Jr Hart THIS PERSON | 47 | Head | Insurance Agent | Minnesota |
| 69 | Marie Hart | 39 | Wife | — | Michigan |
| 70 | John Hart | 14 | Son | — | Minnesota |
| 71 | Frank Lynam | 79 | Head | Doctor | Maine |
| 72 | Hazel Lynam | 50 | Wife | Executive | Wisconsin |
| 73 | Nancy Lynam | 13 | Daughter | — | Minnesota |
| 74 | Wm H Mckenzie | 23 | Head | Gen Mgr | Minnesota |
| 75 | Catherine Mckenzie | 24 | Wife | Gen Mgr | Minnesota |
| 76 | Kirk Mckenzie | 1 | Son | — | Minnesota |
| 77 | Helen Zvolenski | 20 | Maid | Servant | Minnesota |
| 78 | Charles V Clarke | 46 | Head | Plumbing & Heating | Canada |
| 79 | Bertha Clarke | 41 | Wife | — | Illinois |
| 80 | Russell Smith | 37 | Head | Lawyer | Oklahoma |
Pedigree Summary
John
Gen 1 · 2 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)