JH
John Hayden — 1940 US Census Record
Model Tree available1940 United States Federal Census · Marion-County, Indiana
Our Model Tree links this John Hayden across the 1920, 1930 and 1940 US Censuses in Marion-County, Indiana (XGBoost, ~Confirmed), with identified parents John & John — first a son (b.~1919), then head of a 5-person household.
Age 21
b. ~1919
Male
Son
Born: Indiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Marion-County, Indiana |
| Surname | Hayden |
| Given Name | John Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Indianapolis |
| 1935 Residence (County) | Marion |
| Additional Details | |
| Occupation | Maintenance |
| Industry | Auto Parts Factory |
| Class of Worker | PW |
| Hours Worked | 35 |
| Income (1939) | 500 |
| Highest Grade | H 4 |
| 1935 Residence | Same Place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Occupation | Maintenance |
| Township / Ward | Indianapolis |
| Est. Birth Year | ~1919 |
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 |
|---|---|---|---|---|
| Lawrence Hayden | Son | — | 17 | ~1923 |
| John Hayden | Son | — | 21 | ~1919 |
| Roy Hayden | Son | — | 19 | ~1921 |
| John Hayden | Head | — | 40 | ~1900 |
| Mabel Hayden | Spouse | — | 42 | ~1898 |
Census Appearances
1920
Marion, Indiana
Other, age
Marion, Indiana · implied b. ~1920 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hayden |
| Given Name | John |
| Relationship to Head | Boarder |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Indiana |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1930
Marion, Indiana
Son, age 11
Marion, Indiana · implied b. ~1919 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hayden |
| Given Name | John Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Indiana |
| Can Read/Write | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Marion-County, Indiana
Son, age 21
Marion-County, Indiana · implied b. ~1919 — 5 household members
| Surname | Hayden |
| Given Name | John Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Indianapolis |
| 1935 Residence (County) | Marion |
| Occupation | Maintenance |
| Industry | Auto Parts Factory |
| Class of Worker | PW |
| Hours Worked | 35 |
| Income (1939) | 500 |
| Highest Grade | H 4 |
| 1935 Residence | Same Place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
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 Hayden across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Hayden (~0.92 confidence) and father John Hayden (~0.92 confidence) and mother Mabel Hayden (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Hayden
b. ~1900
Source father
● Household
· direct · ~0.92
Father
John Hayden
b. ~1900
Source father
● Household
· direct · ~0.92
Mother
Mabel Hayden
b. ~1898
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Hayden
Son · 1940 · age 21 · b. ~1919 · Indiana
★ You are viewing this record
Sibling
Lawrence Hayden
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Roy Hayden
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Marion-County, Indiana
Open full size
1940 US Federal Census — Marion-County, Indiana
Page Contents
35 people indexed on this census page (nara:1940:m-t0627-01122-00620)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Frances V Rector | 22 | Daughter | Boiler Maker | Illinois |
| 42 | John Hayden | 40 | Head | Boiler Maker | Kentucky |
| 43 | Mabel Hayden | 42 | Wife | — | Indiana |
| 44 | John Jr. Hayden THIS PERSON | 21 | Son | Maintenance | Indiana |
| 45 | Roy Hayden | 19 | Son | Stuffer | Indiana |
| 46 | Lawrence Hayden | 17 | Son | — | Ohio |
| 47 | Clarence Huddleston | 46 | Head | Post Office Clerk | Indiana |
| 48 | Ethel Huddleston | 41 | Wife | — | Texas |
| 49 | Dorothy Huddleston | 20 | Daughter | Clerk | Indiana |
| 50 | William Huddleston | 6 | Son | — | Indiana |
| 51 | John W. Shelburn | 29 | Head | Insurance Agent | Kentucky |
| 52 | Ruthydell Shelburn | 36 | Wife | — | Kentucky |
| 53 | Catherine Louise Shelburn | 5 | Daughter | — | Kentucky |
| 59 | Thomas O. Dean | 53 | Head | Salesman | Indiana |
| 60 | Marie Dean | 44 | Wife | — | Indiana |
| 61 | John S. Arnold | 41 | Head | Installation Manager | Kentucky |
| 62 | Katherine Arnold | 37 | Wife | File Manager | Indiana |
| 63 | Marjorie Arnold | 19 | Daughter | New Worker | Indiana |
| 64 | Burley Orr | 46 | Head | Accountant | Indiana |
| 65 | Mary Orr | 37 | Wife | — | Indiana |
| 66 | Marjorie Orr | 10 | Daughter | — | Indiana |
| 67 | Cecil Bunker | 51 | Head | Freight Clerk | Indiana |
| 68 | Nellie Bunker | 49 | Wife | — | Indiana |
| 69 | Barbara Bunker | 17 | Daughter | — | Indiana |
| 70 | Jack Hornick | 22 | Nephew | Assembler | Indiana |
| 71 | Stephen Gisler | 34 | Head | Teacher | Pennsylvania |
| 72 | Florence Gisler | 38 | Wife | — | Indiana |
| 73 | Betty Barnard | 17 | Daughter | — | Indiana |
| 74 | Mary Barnard | 15 | Daughter | — | Indiana |
| 75 | Joanne Barnard | 14 | Daughter | — | Indiana |
| 76 | Sara Castleman | 80 | Mother-in-law | — | Illinois |
| 77 | Orville Hensley | 41 | Head | Trucker | Indiana |
| 78 | Jewel Hensley | 41 | Wife | — | Indiana |
| 79 | Evelyn Fruits | 14 | Foster Daughter | — | Indiana |
| 80 | Gordon White | 24 | Head | Miller | Indiana |
Pedigree Summary
John + 2 siblings
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)