JH
John Hart — 1940 US Census Record
Model Tree available1940 United States Federal Census · Douglas-County, Nebraska
Our Model Tree links this John Hart across the 1920, 1930 and 1940 US Censuses in Douglas-County, Nebraska (XGBoost, ~Confirmed), with identified parents Michael — first a head (b.~1907), then head of a 5-person household.
Age 33
b. ~1907
Male
Head
Born: Nebraska
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Douglas-County, Nebraska |
| Surname | Hart |
| Given Name | John F. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Nebraska |
| 1935 Residence (City) | Omaha |
| 1935 Residence (County) | Douglas |
| Additional Details | |
| Occupation | Office Manager |
| Industry | Construction Co |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1500 |
| Highest Grade | C-3 |
| 1935 Residence | Same place |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
| Occupation | Office Manager |
| Township / Ward | Omaha |
| Est. Birth Year | ~1907 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Mary Hart | Daughter | — | 3 | ~1937 |
| John Hart | Head | — | 33 | ~1907 |
| Helen Darnyl | Other | — | 27 | ~1913 |
| John Hart | Son | — | 2 | ~1938 |
| Marguerite Hart | Spouse | — | 29 | ~1911 |
Census Appearances
1920
Douglas, Nebraska
Son, age 13
Douglas, Nebraska · implied b. ~1907 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hart |
| Given Name | John A |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Nebraska |
| Father's Birthplace | Nebraska |
| Mother's Birthplace | Nebraska |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
1930
Douglas, Nebraska
Son, age 23
Douglas, Nebraska · implied b. ~1907 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hart |
| Given Name | John A |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Nebraska |
| Father's Birthplace | Nebraska |
| Mother's Birthplace | Nebraska |
| Occupation | Office Clerk |
| Industry | Electric |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
1940
Douglas-County, Nebraska
Head, age 33
Douglas-County, Nebraska · implied b. ~1907 — 5 household members
| Surname | Hart |
| Given Name | John F. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Nebraska |
| 1935 Residence (City) | Omaha |
| 1935 Residence (County) | Douglas |
| Occupation | Office Manager |
| Industry | Construction Co |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1500 |
| Highest Grade | C-3 |
| 1935 Residence | Same place |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
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 Michael Hart (~0.92 confidence). The pedigree spans 1 generation with 1 identified ancestor.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Michael Hart
b. ~1879
Source father
● Household
· direct · ~0.92
This person
Anchor record
John Hart
Head · 1940 · age 33 · b. ~1907 · Nebraska
★ 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 — Douglas-County, Nebraska
Open full size
1940 US Federal Census — Douglas-County, Nebraska
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02274-00221)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Laura (X) Rogers | 51 | Wife | — | Nebraska |
| 2 | Donelson Johnson | 27 | Daughter | Biller | Nebraska |
| 3 | Roger Johnson | 25 | Son | — | Nebraska |
| 4 | Clothiel Johnson | 25 | Son | Machinist | Nebraska |
| 5 | Morris E. Bonnie | 54 | Head | Ticket Agent | Iowa |
| 6 | Josephine (X) Bonnie | 41 | Wife | — | Ireland |
| 7 | Hugh Bonnie | 24 | Son | Service Man | Nebraska |
| 8 | Morris Bonnie | 19 | Son | Student | Nebraska |
| 9 | Rudolph (X) Fries | 64 | Head | Carpenter | Germany |
| 10 | Alvin Fries | 42 | Son | Mechanic | Iowa |
| 11 | Helen Fries | 21 | Daughter | — | Nebraska |
| 12 | Hugh Jr. Fries | 17 | Son | Student | Nebraska |
| 13 | Milo Thompson | 38 | Head | Accountant | South Dakota |
| 14 | Anne Thompson | 45 | Wife | — | South Dakota |
| 15 | Anna Calder | 72 | Mother | — | Sweden |
| 16 | Rovina E. (X) Taylor | 41 | Head | — | Nebraska |
| 17 | Rudolph Taylor | 41 | Son | Sales | Nebraska |
| 18 | Garrett Taylor | 39 | Son | Painter | Nebraska |
| 19 | C. Wilson Taylor | 27 | Son | Clerk | Nebraska |
| 20 | Melvin Taylor | 25 | Son | Loader | Nebraska |
| 21 | Adeline C. Taylor | 40 | Daughter | Maid | Nebraska |
| 22 | Jeanette Taylor | 10 | Grand daughter | — | Nebraska |
| 23 | Margaret Meekins | 68 | Head | — | Iowa |
| 24 | Catherine W. Meekins | 37 | Daughter | Salesman | Montana |
| 25 | Wilford Loyd | 38 | Lodger | Clerical | Michigan |
| 26 | John F. Hart THIS PERSON | 33 | Head | Office Manager | Nebraska |
| 27 | Marguerite (X) Hart | 29 | Wife | — | Nebraska |
| 28 | John M. Hart | 2 | Son | — | Nebraska |
| 29 | Mary Ann Hart | 3 | Daughter | — | Nebraska |
| 30 | Helen Darnyl | 27 | Sister | Stenographer | Nebraska |
| 31 | Carl A. Heick | 29 | Head | Student | Iowa |
| 32 | Florence (X) Heick | 32 | Wife | — | Iowa |
| 33 | Carolyn Heick | 6 | Daughter | — | Iowa |
| 34 | Roberta Heick | 3 | Daughter | — | Iowa |
| 35 | Blaine Boquet | 50 | Head | Dealer | Iowa |
| 36 | Ethel (X) Woodruff | 48 | Head | Millinery Sales | Nebraska |
| 37 | Anna Timm | 60 | Mother | Dressmaker | Germany |
| 38 | Erich Strubbe | 38 | Head | Clerk | Germany |
| 39 | Gertrude (X) Strubbe | 36 | Wife | — | Germany |
| 40 | Lois Jean Strubbe | 8 | Daughter | — | Nebraska |
Pedigree Summary
John
Gen 1 · 1 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)