HD
Harold Davis — 1940 US Census Record
Model Tree available1940 United States Federal Census · Marion-County, Indiana
Our Model Tree links this Harold Davis across the 1910, 1920, 1930 and 1940 US Censuses in Marion-County, Indiana (XGBoost, ~Confirmed), with identified parents Minor & Iona — first a head (b.~1909), then head of a 4-person household.
Age 31
b. ~1909
Male
Head
Born: Indiana
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Marion-County, Indiana |
| Surname | Davis |
| Given Name | Harold |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Indiana |
| 1935 Residence (City) | Indianapolis City |
| 1935 Residence (County) | Marion |
| Additional Details | |
| Occupation | Inspector |
| Industry | Wood Turning |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 2400 |
| Highest Grade | C-1 |
| 1935 Residence | Same House |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Occupation | Inspector |
| Township / Ward | Indianapolis City |
| Est. Birth Year | ~1909 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Harold | Age | Birth yr |
|---|---|---|---|---|
| Harold Davis | Head | — | 31 | ~1909 |
| John Davis | Son | — | 7 | ~1933 |
| Richard Davis | Son | — | 3 | ~1937 |
| Josephine Davis | Spouse | — | 29 | ~1911 |
Census Appearances
1910
Marion, Indiana
Son, age 1
Marion, Indiana · implied b. ~1909 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Harold |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1920
Marion, Indiana
Son, age 11
Marion, Indiana · implied b. ~1909 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Harold Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1930
Marion, Indiana
Son, age 22
Marion, Indiana · implied b. ~1908 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Harold M. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Can Read/Write | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Marion-County, Indiana
Head, age 31
Marion-County, Indiana · implied b. ~1909 — 4 household members
| Surname | Davis |
| Given Name | Harold |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Indiana |
| 1935 Residence (City) | Indianapolis City |
| 1935 Residence (County) | Marion |
| Occupation | Inspector |
| Industry | Wood Turning |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 2400 |
| Highest Grade | C-1 |
| 1935 Residence | Same House |
| 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 Harold Davis across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Minor Davis (~0.92 confidence) and mother Iona Davis (~0.92 confidence) and mother Helen Davis (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Minor Davis
b. ~1883
Source father
● Household
· direct · ~0.92
Mother
Iona Davis
b. ~1886
Source mother
● Household
· direct · ~0.92
Mother
Helen Davis
b. ~1887
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Harold Davis
Head · 1940 · age 31 · b. ~1909 · Indiana
★ 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 — Marion-County, Indiana
Open full size
1940 US Federal Census — Marion-County, Indiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01131-00102)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Chester B Lawson | 44 | Head | Asst Supt | Indiana |
| 2 | Margaret R Lawson | 41 | Wife | — | Indiana |
| 3 | Robert B Lawson | 19 | Son | Clerical | Indiana |
| 4 | Edward F Lawson | 16 | Son | — | Indiana |
| 5 | Joanne M Lawson | 15 | Daughter | — | Indiana |
| 6 | Otis W Roberts | 54 | Brother-in-law | Investigator | Indiana |
| 7 | Ora I Gill | 58 | Head | Salesman | Indiana |
| 8 | Wilma V Gill | 23 | Daughter | — | Illinois |
| 9 | Harold D Hiatt | 49 | Head | Mechanical Eng | Pennsylvania |
| 10 | Lillian D Hiatt | 48 | Wife | — | Ohio |
| 11 | Betty Hiatt | 22 | Daughter | — | Indiana |
| 12 | Earl Hiatt | 25 | Son | Mechanic | Ohio |
| 13 | Lee E Forslund | 50 | Head | Plumber | Indiana |
| 14 | Edith Forslund | 49 | Wife | — | Indiana |
| 15 | Ted E Forslund | 26 | Son | Teacher | Indiana |
| 16 | Robert Forslund | 18 | Son | — | Indiana |
| 17 | Netty Gibson | 79 | Mother-in-law | — | Indiana |
| 18 | Claude S Matthews | 52 | Head | Dispatcher | Iowa |
| 19 | Lucille M Matthews | 50 | Wife | — | Illinois |
| 20 | Lila Mae Mckinney | 9 | Roomer | — | Indiana |
| 21 | Clifford Byers | 52 | Brother-in-law | Salesman | Ohio |
| 22 | Sarah Byers | 52 | Sister-in-law | — | Illinois |
| 23 | Edward L Roberts | 73 | Head | Retired-Emp Mcrr | Indiana |
| 24 | Tessa C Roberts | 61 | Wife | — | Indiana |
| 25 | Harold K Craun | 61 | Head | Carpenter | Virginia |
| 26 | Marietta D Craun | 60 | Wife | — | Virginia |
| 27 | Allen G Mcginley | 30 | Head | Accountant | Indiana |
| 28 | Louise J Mcginley | 30 | Wife | Visitor | Indiana |
| 29 | Nellie B Beverage | 64 | Mother-in-law | — | Indiana |
| 30 | Harold Davis THIS PERSON | 31 | Head | Inspector | Indiana |
| 31 | Josephine G Davis | 29 | Wife | — | Indiana |
| 32 | John C Davis | 7 | Son | — | Indiana |
| 33 | Richard Davis | 3 | Son | — | Indiana |
| 34 | Abraham B Einbinder | 42 | Head | Salesman | New York |
| 35 | Anna Einbinder | 40 | Wife | — | Minnesota |
| 36 | Shirley A Einbinder | 20 | Daughter | — | Minnesota |
| 37 | Thelma B Einbinder | 19 | Daughter | Saleslady | Minnesota |
| 38 | Lewis W Einbinder | 15 | Son | — | Minnesota |
| 39 | Gloria J Einbinder | 6 | Daughter | — | Indiana |
| 40 | Charles S Woodruff | 55 | Head | Floor Mgr | Indiana |
Pedigree Summary
Harold
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)