JH
John Haas — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Marion-County, Ohio
Our Model Tree links this John Haas across the 1930 and 1940 US Censuses in Marion-County, Ohio (XGBoost, ~Confirmed) — first a son (b.~1913), then head of a 6-person household.
Age 27
b. ~1913
Male
Son
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Marion-County, Ohio |
| Surname | Haas |
| Given Name | John A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Caledonia village |
| 1935 Residence (County) | Marion |
| Additional Details | |
| Occupation | laborer |
| Industry | feed mill |
| Class of Worker | PW |
| Hours Worked | 50 |
| Income (1939) | 240 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Laborer |
| Township / Ward | Caledonia Village |
| Est. Birth Year | ~1913 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Eugene Haas | Son | — | 24 | ~1916 |
| Ina Haas | Spouse | — | 52 | ~1888 |
| John Haas | Son | — | 27 | ~1913 |
| Leroy Haas | Son | — | 25 | ~1915 |
| Robert Haas | Son | — | 16 | ~1924 |
| Andrew Haas | Head | — | 56 | ~1884 |
Census Appearances
1930
Marion, Ohio
Son, age 17
Marion, Ohio · implied b. ~1913 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Haas |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Ohio |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Marion-County, Ohio
Son, age 27
Marion-County, Ohio · implied b. ~1913 — 6 household members
| Surname | Haas |
| Given Name | John A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Caledonia village |
| 1935 Residence (County) | Marion |
| Occupation | laborer |
| Industry | feed mill |
| Class of Worker | PW |
| Hours Worked | 50 |
| Income (1939) | 240 |
| Highest Grade | No 8 |
| 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
Son · 1940 · age 27 · b. ~1913 · Ohio
★ You are viewing this record
Sibling
Robert Haas
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eugene Haas
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leroy Haas
Sibling · 1940 · age 25
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, Ohio
Open full size
1940 US Federal Census — Marion-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03110-00050)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Lalah F. Iden | 59 | Wife | — | Ohio |
| 2 | Warren F. Iden | 19 | Son | — | Ohio |
| 3 | Theodore G. Reed | 36 | Head | Carpenter | Ohio |
| 4 | Eulah M. Reed | 26 | Wife | — | Ohio |
| 5 | Ronald G. Reed | 4 | Son | — | Ohio |
| 6 | Sarah O. Nance | 66 | Head | — | Ohio |
| 7 | Fred G. Nance | 38 | Son | Farm Laborer | Ohio |
| 8 | Ella R. Nance | 28 | Daughter | — | Ohio |
| 9 | George W. Henry | 82 | Head | — | Ohio |
| 10 | Mary J. Henry | 79 | Wife | — | Ohio |
| 11 | Milo Henry | 40 | Son | Electrician | Ohio |
| 12 | Florin E. Underwood | 26 | Head | Electrician | Ohio |
| 13 | Rowena O. Underwood | 24 | Wife | — | Ohio |
| 14 | Charlotte M. Underwood | 7 | Daughter | — | Ohio |
| 15 | Constance D. Underwood | 5 | Daughter | — | Ohio |
| 16 | Chrita R. Underwood | 2 | Daughter | — | Ohio |
| 17 | Sarah Meyers | 40 | Head | — | Ohio |
| 18 | Wattie B. Shelton | 46 | Head | Foreman | West Virginia |
| 19 | Leta N. Shelton | 47 | Wife | — | Ohio |
| 20 | Richard C. Shelton | 19 | Son | Nya Worker | Ohio |
| 21 | Howard C. Shelton | 16 | Son | — | Ohio |
| 22 | Clarabelle Shelton | 13 | Daughter | — | Ohio |
| 23 | Willard C. Shelton | 10 | Son | — | Ohio |
| 24 | Andrew Haas | 56 | Head | — | Pennsylvania |
| 25 | Ina I. Haas | 52 | Wife | — | Ohio |
| 26 | John A. Haas THIS PERSON | 27 | Son | Laborer | Ohio |
| 27 | Leroy F. Haas | 25 | Son | Laborer | Ohio |
| 28 | Eugene M. Haas | 24 | Son | Teacher | Ohio |
| 29 | Robert D. Haas | 16 | Son | — | Ohio |
| 30 | John W. Herrod | 75 | Head | — | Ohio |
| 31 | Elma E. Herrod | 55 | Daughter | — | Ohio |
| 32 | Carl R. Herrod | 49 | Son | Truck Driver | Ohio |
| 33 | Harold M. Reed | 37 | Head | Barber | Ohio |
| 34 | Kathrine M. Reed | 25 | Wife | — | Ohio |
| 35 | Suzanne L. Reed | 4 | Daughter | — | Ohio |
| 36 | Gideon F. Caldwell | 64 | Head | Farm Hand | Ohio |
| 37 | Florence J. Caldwell | 57 | Wife | — | Ohio |
| 38 | Ray C. Black | 46 | Head | Laborer | Ohio |
| 39 | Iva B. Black | 35 | Wife | Laborer | Ohio |
| 40 | Betty J. Black | 15 | Daughter | — | 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)