JL
John Long — 1940 US Census Record
Model Tree available1940 United States Federal Census · Butler-County, Ohio
Our Model Tree links this John Long across the 1920, 1930 and 1940 US Censuses in Butler-County, Ohio (XGBoost, ~Confirmed), with identified parents Gilbert & Rose — first a head (b.~1910), then head of a 4-person household.
Age 30
b. ~1910
Male
Head
Born: Ohio
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Butler-County, Ohio |
| Surname | Long |
| Given Name | John C |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | Hamilton |
| 1935 Residence (County) | Butler |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | No 0 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Township / Ward | Hamilton |
| 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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Mary Long | Daughter | — | 3 | ~1937 |
| John Long | Head | — | 30 | ~1910 |
| Nora Long | Other | — | 70 | ~1870 |
| Mary Long | Spouse | — | 31 | ~1909 |
Census Appearances
1920
Butler, Ohio
Son, age 10
Butler, Ohio · implied b. ~1910 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Long |
| Given Name | John C. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| 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
Butler, Ohio
Son, age 20
Butler, Ohio · implied b. ~1910 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Long |
| Given Name | John C |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | Stone cutter |
| Industry | Monuments |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | No |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Butler-County, Ohio
Head, age 30
Butler-County, Ohio · implied b. ~1910 — 4 household members
| Surname | Long |
| Given Name | John C |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | Hamilton |
| 1935 Residence (County) | Butler |
| Income (1939) | 0 |
| Highest Grade | No 0 |
| 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 Long across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Gilbert Long (~0.92 confidence) and mother Rose Long (~0.92 confidence) and mother Rosa Long (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Gilbert Long
b. ~1881
Source father
● Household
· direct · ~0.92
Mother
Rose Long
b. ~1883
Source mother
● Household
· direct · ~0.92
Mother
Rosa Long
b. ~1883
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Long
Head · 1940 · age 30 · b. ~1910 · 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 — Butler-County, Ohio
Open full size
1940 US Federal Census — Butler-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03033-00138)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Fannie B Davis | 39 | Wife | — | Ohio |
| 42 | Betty Jane Davis | 15 | Daughter | — | Ohio |
| 43 | Josephine Davis | 6 | Daughter | — | Ohio |
| 44 | Fred G Mathias | 55 | Head | Pattern Maker | Ohio |
| 45 | Adella Mathias | 42 | Wife | — | Ohio |
| 46 | Jim Mathias | 14 | Son | — | Ohio |
| 47 | George Mathias | 11 | Son | — | Ohio |
| 48 | George Dunwoody | 84 | Father | — | Ohio |
| 49 | Joseph F Schuba | 72 | Head | — | Ohio |
| 50 | Johanna C Schuba | 71 | Wife | — | Ohio |
| 51 | Erwin Schuba | 28 | Son | Mechanic | Ohio |
| 52 | Mabel R Cox | 62 | Head | — | Ohio |
| 53 | Charles G Weiss | 81 | Head | — | Germany |
| 54 | Anton Schiller | 52 | Head | — | Germany |
| 55 | Marie Schiller | 50 | Wife | Mechanic | Germany |
| 56 | Frederick Schiller | 20 | Son | — | Germany |
| 57 | Martha Schiller | 16 | Daughter | Clerk | Germany |
| 58 | Arnold Brummer | 52 | Head | — | Ohio |
| 59 | Anna Brummer | 52 | Wife | Core Maker | Kentucky |
| 60 | Merle Brummer | 25 | Son | — | Ohio |
| 61 | Gordon Brummer | 17 | Son | Paper Maker | Ohio |
| 62 | Adrian Brummer | 14 | Son | — | Ohio |
| 63 | Jack Brummer | 12 | Son | — | Ohio |
| 64 | Louis Brown | 41 | Head | — | Ohio |
| 65 | Anna D Brown | 38 | Wife | Plumber | Ohio |
| 66 | Betty Brown | 10 | Daughter | Paper Counter | Ohio |
| 67 | Merle Brown | 12 | Son | — | Ohio |
| 68 | John C Long THIS PERSON | 30 | Head | — | Ohio |
| 69 | Mary Ed Long | 31 | Wife | Monumental Worker | Vermont |
| 70 | Mary Rose Long | 3 | Daughter | — | Ohio |
| 71 | Nora Edna Long | 70 | Mother | — | Ohio |
| 72 | Wilhelmina Bager | 77 | Head | — | Ohio |
| 73 | Louis Mueller | 68 | Head | — | Switzerland |
| 74 | Mildred Mueller | 59 | Wife | Mechanic | Ohio |
| 75 | Lena Mancke | 30 | Sister in law | — | Ohio |
| 76 | Donna Mancke | 33 | Daughter | Butcher | Ohio |
| 77 | John Romary | 63 | Head | — | Kentucky |
| 78 | Brenda Romary | 61 | Wife | Carpenter | Kentucky |
| 79 | Flora Franks | 57 | Head | — | Kentucky |
| 80 | Edna R Franks | 22 | Daughter | Stenographer | Kentucky |
Pedigree Summary
John
Gen 1 · 3 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)