JH
John Haas — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Lawrence-County, Ohio
Our Model Tree links this John Haas across the 1930 and 1940 US Censuses in Lawrence-County, Ohio (XGBoost, ~Confirmed) — first a head (b.~1874), then head of a 7-person household.
Age 66
b. ~1874
Male
Head
Born: Ohio
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Lawrence-County, Ohio |
| Surname | Haas |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 66 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | Ironton City |
| 1935 Residence (County) | Lawrence |
| Additional Details | |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Township / Ward | Ironton City |
| Est. Birth Year | ~1874 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Edward Haas | Son | — | 32 | ~1908 |
| Lucille Haas | Daughter | — | 18 | ~1922 |
| John Haas | Head | — | 66 | ~1874 |
| Charles Haas | Son | — | 17 | ~1923 |
| Margaret Haas | Daughter | — | 12 | ~1928 |
| Nellie Haas | Spouse | — | 50 | ~1890 |
| Eugene Haas | Son | — | 14 | ~1926 |
Census Appearances
1930
Lawrence, Ohio
Head, age 55
Lawrence, Ohio · implied b. ~1875 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hass |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Ohio |
| Age at First Marriage | 23 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Occupation | Miner |
| Industry | Coal |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 2500 |
| Veteran | No |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Lawrence-County, Ohio
Head, age 66
Lawrence-County, Ohio · implied b. ~1874 — 7 household members
| Surname | Haas |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 66 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | Ironton City |
| 1935 Residence (County) | Lawrence |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| 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 John Haas across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Haas
Head · 1940 · age 66 · b. ~1874 · Ohio
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Lawrence-County, Ohio
Open full size
1940 US Federal Census — Lawrence-County, Ohio
Page Contents
19 people indexed on this census page (nara:1940:m-t0627-03096-00452)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Sadie Picklesimer | 53 | Head | — | Ohio |
| 2 | Chester Clark | 34 | Son-in-law | Shipping Clerk | Ohio |
| 3 | Elizabeth Clark | 32 | Daughter | House Lady | Ohio |
| 4 | Mary C. Buckhannon | 77 | Head | — | Ohio |
| 5 | Walter H. Buckhannon | 40 | Son | Auto Mechanic | Ohio |
| 6 | Bernice C. Buckhannon | 27 | Son | Laborer | Ohio |
| 7 | Sarah Freeman | 64 | Head | Janitress | Ohio |
| 8 | Sarah Anne Corn | 11 | Daughter | — | Ohio |
| 9 | Louis Haslett | 73 | Head | — | Ohio |
| 10 | Otto Haslett | 70 | Brother | — | Ohio |
| 11 | John Haas THIS PERSON | 66 | Head | — | Ohio |
| 12 | Nellie Haas | 50 | Wife | — | Ohio |
| 13 | Lucille Haas | 18 | Daughter | — | Ohio |
| 14 | Charles Haas | 17 | Son | — | Ohio |
| 15 | Eugene Haas | 14 | Son | — | Ohio |
| 16 | Margaret Haas | 12 | Daughter | — | Ohio |
| 17 | Edward Haas | 32 | Son | — | Ohio |
| 18 | Anna Yasmine | 73 | Head | — | Ohio |
| 19 | Joseph Mcabeer | 66 | Nephew | — | Ohio |
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)