JH
John Heller — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Lucas-County, Ohio
Our Model Tree links this John Heller across the 1930 and 1940 US Censuses in Lucas-County, Ohio (XGBoost, ~Confirmed) — first a son (b.~1920), then head of a 6-person household.
Age 20
b. ~1920
Male
Son
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Lucas-County, Ohio |
| Surname | Heller |
| Given Name | John Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Toledo City |
| 1935 Residence (County) | Lucas |
| Additional Details | |
| Occupation | Stock chaser |
| Industry | Fumigating Co. |
| Class of Worker | PW |
| Hours Worked | 16 |
| Income (1939) | 528 |
| Highest Grade | H-4 |
| 1935 Residence | Same Place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Stock Chaser |
| Township / Ward | Toledo City |
| Est. Birth Year | ~1920 |
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 |
|---|---|---|---|---|
| Robert Heller | Son | — | 15 | ~1925 |
| Ruth Heller | Daughter | — | 15 | ~1925 |
| Elizabeth Heller | Daughter | — | 21 | ~1919 |
| John Heller | Son | — | 20 | ~1920 |
| John Heller | Head | — | 56 | ~1884 |
| Hilda Heller | Spouse | — | 53 | ~1887 |
Census Appearances
1930
Lucas, Ohio
Son, age 10
Lucas, Ohio · implied b. ~1920 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Heller |
| Given Name | John Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Germany |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Lucas-County, Ohio
Son, age 20
Lucas-County, Ohio · implied b. ~1920 — 6 household members
| Surname | Heller |
| Given Name | John Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Toledo City |
| 1935 Residence (County) | Lucas |
| Occupation | Stock chaser |
| Industry | Fumigating Co. |
| Class of Worker | PW |
| Hours Worked | 16 |
| Income (1939) | 528 |
| Highest Grade | H-4 |
| 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 Heller across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Heller
Son · 1940 · age 20 · b. ~1920 · Ohio
★ You are viewing this record
Sibling
Elizabeth Heller
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Heller
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Heller
Sibling · 1940 · age 15
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 — Lucas-County, Ohio
Open full size
1940 US Federal Census — Lucas-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03257-00496)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Donald Bleimister | 22 | Son | Waiter | Ohio |
| 42 | Marie David | 77 | Head | — | Germany |
| 43 | Wilbur Snejay | 34 | Head | Baggage Clerk | Ohio |
| 44 | Frieda Snejay | 28 | Wife | — | Ohio |
| 45 | Gene Conrad | 47 | Head | Machine Operator | Switzerland |
| 46 | Elizabeth Conrad | 47 | Wife | — | Switzerland |
| 47 | Lillian Conrad | 15 | Daughter | — | Ohio |
| 48 | Wilbur J. Grubbe | 25 | Head | Inspector | Ohio |
| 49 | Louise Grubbe | 25 | Wife | Assembler | Ohio |
| 50 | John W. Grubbe | 4 | Son | — | Ohio |
| 51 | William F. Benz | 76 | Head | Clerk Of Co. Courts | Germany |
| 52 | Bertha S. Benz | 73 | Wife | — | Germany |
| 53 | Thomas Mersereau | 70 | Head | — | Ohio |
| 54 | Rose Mersereau | 61 | Wife | Machine Operator | Ohio |
| 55 | Claude Payton | 60 | Lodger | Iron Heater | Ohio |
| 56 | Harold H. Liggett | 40 | Lodger | Machinist | Ohio |
| 57 | Emma Hutchins | 80 | Mother-in-law | — | Ohio |
| 58 | Sumner A. Mchaffie | 39 | Head | Grinder | Ohio |
| 59 | Kathryn L. Mchaffie | 40 | Wife | — | Illinois |
| 60 | Sumner N. Mchaffie | 5 | Son | — | Ohio |
| 61 | Robert L. Mchaffie | 3 | Son | — | Ohio |
| 62 | Henry S. Gifford | 48 | Head | Repair Man | Ohio |
| 63 | Ethel M. Gifford | 47 | Wife | — | Ohio |
| 64 | Lucille A. Gifford | 15 | Daughter | — | Ohio |
| 65 | John W. Heller | 56 | Head | — | Michigan |
| 66 | Hilda A. Heller | 53 | Wife | — | Germany |
| 67 | Elizabeth A. Heller | 21 | Daughter | Stenographer | Ohio |
| 68 | John Jr. Heller THIS PERSON | 20 | Son | Stock Chaser | Ohio |
| 69 | Ruth A. Heller | 15 | Daughter | — | Ohio |
| 70 | Robert O. Heller | 15 | Son | — | Ohio |
| 71 | Florence Weil | 55 | Head | Clerk | Ohio |
| 72 | William E. Nigony | 53 | Uncle | — | Ohio |
| 73 | Anne Humphrey | 77 | Gr. aunt | — | Ohio |
| 74 | Curtis C. Willoughby | 33 | Head | Trucker | Indiana |
| 75 | Gladys Willoughby | 31 | Wife | Machine Operator | Illinois |
| 76 | Hannah Loynes | 45 | Mother-in-law | — | England |
| 77 | May Loynes | 26 | Sister-in-law | Selector | Indiana |
| 78 | Isabel Loynes | 26 | Sister-in-law | Beautician | Indiana |
| 79 | Irene Loynes | 20 | Sister-in-law | — | Indiana |
| 80 | Emily Loynes | 17 | Sister-in-law | — | Indiana |
Related Census Records
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)