HA
Harold Adams — 1940 US Census Record
Model Tree available1940 United States Federal Census · Allen-County, Ohio
Our Model Tree links this Harold Adams across the 1910, 1920, 1930 and 1940 US Censuses in Allen-County, Ohio (XGBoost, ~Confirmed), with identified parents Charles & Emma — first a head (b.~1907), then head of a 3-person household.
Age 33
b. ~1907
Male
Head
Born: Ohio
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Allen-County, Ohio |
| Surname | Adams |
| Given Name | Harold |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | Lima City |
| 1935 Residence (County) | Allen |
| Additional Details | |
| Occupation | Machinist |
| Industry | Steam Railroad |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 326 |
| Highest Grade | H-1 |
| 1935 Residence | Same house |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Machinist |
| Township / Ward | Lima City |
| 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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Harold | Age | Birth yr |
|---|---|---|---|---|
| Esther Adams | Spouse | — | 30 | ~1910 |
| Harold Adams | Head | — | 33 | ~1907 |
| Harold Adams | Son | — | 4 | ~1936 |
Census Appearances
1910
Allen, Ohio
Son, age 3
Allen, Ohio · implied b. ~1907 — 7 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 | 3 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | none |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1920
Allen, Ohio
Son, age 12
Allen, Ohio · implied b. ~1908 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Adams |
| Given Name | Harold F |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Allen, Ohio
Son, age 22
Allen, Ohio · implied b. ~1908 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Adams |
| Given Name | Harold |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | machinist helper |
| Industry | Railroad shop |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Allen-County, Ohio
Head, age 33
Allen-County, Ohio · implied b. ~1907 — 3 household members
| Surname | Adams |
| Given Name | Harold |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | Lima City |
| 1935 Residence (County) | Allen |
| Occupation | Machinist |
| Industry | Steam Railroad |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 326 |
| Highest Grade | H-1 |
| 1935 Residence | Same house |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
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 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Charles Adams (~0.92 confidence) and mother Emma Adams (~0.92 confidence) and mother Eva Adams (~0.92 confidence) and mother Eva Adams (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Charles Adams
b. ~1871
Source father
● Household
· direct · ~0.92
Mother
Emma Adams
b. ~1873
Source mother
● Household
· direct · ~0.92
Mother
Eva Adams
b. ~1873
Source mother
● Household
· direct · ~0.92
Mother
Eva Adams
b. ~1872
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Harold Adams
Head · 1940 · age 33 · b. ~1907 · Ohio
★ 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 — Allen-County, Ohio
Open full size
1940 US Federal Census — Allen-County, Ohio
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-03020-00698)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Paul Cunningham | 24 | Nephew-in-law | Baker | Ohio |
| 42 | Sara Cunningham | 21 | Niece-in-law | — | Ohio |
| 43 | Michael Cunningham | 0 | Nephew-in-law | — | Ohio |
| 44 | Robert Loudenback | 36 | Head | Owner Operator | Ohio |
| 45 | Helen Loudenback | 32 | Wife | — | Ohio |
| 46 | Patricia Loudenback | 12 | Daughter | — | Ohio |
| 47 | Robert Loudenback | 8 | Son | — | Ohio |
| 48 | Ronald Loudenback | 6 | Son | — | Ohio |
| 49 | Paul R. Denemeyer | 23 | Head | Salesman | Ohio |
| 50 | Norma J. Denemeyer | 24 | Wife | Ironer | Ohio |
| 52 | Henry Von Gries | 58 | Head | Worker Sheet Metal | Ohio |
| 53 | Elizabeth Von Gries | 49 | Wife | — | Pennsylvania |
| 54 | Mary Louise Von Gries | 22 | Daughter | Machine Operator | Ohio |
| 55 | Betty Ann Von Gries | 11 | Daughter | — | Ohio |
| 56 | Louis Cira | 43 | Head | Fruit Peddler | Italy |
| 57 | Rose Cira | 39 | Wife | — | Michigan |
| 58 | Nettie Cira | 14 | Daughter | — | Michigan |
| 59 | Elizabeth Frederick | 69 | Head | — | Ohio |
| 60 | Floyd Parks | 44 | Head | Park Laborer | Ohio |
| 61 | Hazel Parks | 36 | Wife | — | Ohio |
| 62 | Juanita Parks | 15 | Daughter | — | Ohio |
| 63 | Dora Parks | 13 | Daughter | — | Ohio |
| 64 | Betty Parks | 11 | Daughter | — | Ohio |
| 65 | Dale Parks | 8 | Son | — | Ohio |
| 66 | John Parks | 5 | Son | — | Ohio |
| 67 | David Parks | 3 | Son | — | Ohio |
| 69 | Gerald Barber | 28 | Head | Milk Routeman | Ohio |
| 70 | Sara Barber | 22 | Wife | Sign Brusher | Ohio |
| 71 | Dale H. Owens | 35 | Head | Proprietor | Ohio |
| 72 | Dorothy E. Owens | 33 | Wife | — | Ohio |
| 73 | Thomas Owens | 5 | Son | — | Ohio |
| 74 | Raymond Wiley | 34 | Head | Watchmaker | Iowa |
| 75 | Joy O. Wiley | 33 | Wife | — | Oregon |
| 76 | Raymond Jr. Wiley | 1 | Son | — | Oregon |
| 77 | Amy L. Wiley | 5 | Daughter | — | Iowa |
| 78 | Harold Adams THIS PERSON | 33 | Head | Machinist | Ohio |
| 79 | Esther Adams | 30 | Wife | — | Ohio |
| 80 | Harold Jr. Adams | 4 | Son | — | Ohio |
Related Census Records
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)