HA
Harold Adams — 1940 US Census Record
Model Tree available1940 United States Federal Census · Marion-County, Indiana
Our Model Tree links this Harold Adams across the 1920, 1930 and 1940 US Censuses in Marion-County, Indiana (XGBoost, ~Confirmed), with identified parents Ralph & Ralph — first a son (b.~1910), then head of a 3-person household.
Age 30
b. ~1910
Male
Son
Born: Indiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Marion-County, Indiana |
| Surname | Adams |
| Given Name | Harold |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Indianapolis |
| 1935 Residence (County) | Marion |
| Additional Details | |
| Highest Grade | H-2 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Township / Ward | Indianapolis |
| 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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Harold | Age | Birth yr |
|---|---|---|---|---|
| Ralph Adams | Head | — | 64 | ~1876 |
| Etta Adams | Spouse | — | 61 | ~1879 |
| Harold Adams | Son | — | 30 | ~1910 |
Census Appearances
1920
Marion, Indiana
Son, age 10
Marion, Indiana · implied b. ~1910 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Adams |
| Given Name | Harold G |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| 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 20
Marion, Indiana · implied b. ~1910 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Adams |
| Given Name | Harold |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| 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
Son, age 30
Marion-County, Indiana · implied b. ~1910 — 3 household members
| Surname | Adams |
| Given Name | Harold |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Indianapolis |
| 1935 Residence (County) | Marion |
| Highest Grade | H-2 |
| 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 Harold Adams across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Ralph Adams (~0.92 confidence) and father Ralph Adams (~0.92 confidence) and mother Etta Adams (~0.92 confidence) and mother Etta Adams (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Ralph Adams
b. ~1876
Source father
● Household
· direct · ~0.92
Father
Ralph Adams
b. ~1878
Source father
● Household
· direct · ~0.92
Mother
Etta Adams
b. ~1880
Source mother
● Household
· direct · ~0.92
Mother
Etta Adams
b. ~1879
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Harold Adams
Son · 1940 · age 30 · b. ~1910 · 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-t0627-01122-00159)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Margaret R. Slinger | 13 | Daughter | — | Indiana |
| 42 | Dorothy Jane Slinger | 11 | Daughter | — | Indiana |
| 43 | Charles John Slinger | 2 | Son | — | Indiana |
| 44 | Ralph Adams | 64 | Head | Carpenter | Indiana |
| 45 | Etta Adams | 61 | Wife | — | Indiana |
| 46 | Harold Adams THIS PERSON | 30 | Son | — | Indiana |
| 47 | Albert J. Shearer | 44 | Head | Elevator Starter | Indiana |
| 48 | Rosamond Shearer | 34 | Wife | — | Indiana |
| 49 | Nancy Lee Shearer | 6 | Daughter | — | Indiana |
| 50 | F. E. Hawkins | 42 | Head | Railroad Brakeman | Illinois |
| 51 | Mary Hawkins | 42 | Wife | — | Missouri |
| 52 | Robert Hawkins | 19 | Son | Clerk | Illinois |
| 53 | Betty Hawkins | 13 | Daughter | — | Indiana |
| 54 | Donald Hawkins | 10 | Son | — | Indiana |
| 55 | Maeth Calhoun | 46 | Head | — | W. Virginia |
| 56 | Emery Calhoun | 21 | Son | Draftsman | W. Virginia |
| 57 | Herman Myers | 33 | Head | — | Indiana |
| 58 | Edith Myers | 30 | Wife | — | Indiana |
| 59 | Mary Frances Myers | 6 | Daughter | — | Indiana |
| 60 | Lawrence Myers | 21 | Brother | — | Indiana |
| 61 | Everett Barnes | 25 | Head | Laborer | Indiana |
| 62 | Louise Barnes | 24 | Wife | Machine Operator | Indiana |
| 63 | Mary Sumpter | 30 | Cousin | Registered Nurse | Indiana |
| 64 | Ralph W. Randol | 37 | Head | Carpenter | Indiana |
| 65 | June Randol | 37 | Wife | — | Indiana |
| 66 | Harold Randol | 15 | Son | Merchant Carrier | Indiana |
| 67 | Jesse Janey | 29 | Head | Heat Treater | Indiana |
| 68 | Denise Janey | 27 | Wife | Wrapper | France |
| 69 | Elmer Barnes | 39 | Head | Mechanic | Kentucky |
| 70 | Dorothy Barnes | 41 | Wife | — | Indiana |
| 71 | Betty Barnes | 14 | Daughter | — | Indiana |
| 72 | Robert Barnes | 8 | Son | — | Indiana |
| 73 | Ernest Reno | 31 | Head | Truck Driver | Indiana |
| 74 | Thora Reno | 30 | Wife | — | Pennsylvania |
| 75 | Barbara Reno | 12 | Daughter | — | Indiana |
| 76 | Shirley Reno | 10 | Daughter | — | Indiana |
| 77 | Carol Reno | 8 | Daughter | — | Indiana |
| 78 | Ernest Reno | 1 | Son | — | Indiana |
| 79 | Myron Bear | 49 | Head | Printer | Indiana |
| 80 | Bertha Bear | 44 | Wife | — | Kentucky |
Pedigree Summary
Harold
Gen 1 · 4 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)