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John Ryan — 1940 US Census Record
Model Tree available1940 United States Federal Census · Champaign-County, Ohio
Our Model Tree links this John Ryan across the 1910, 1920, 1930 and 1940 US Censuses in Champaign-County, Ohio (XGBoost, ~Confirmed), with identified parents James & James — first a head (b.~1905), then head of a 3-person household.
Age 35
b. ~1905
Male
Head
Born: Ohio
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Champaign-County, Ohio |
| Surname | Ryan |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | Urbana City |
| 1935 Residence (County) | Champaign |
| Additional Details | |
| Occupation | Punch Press Operator |
| Industry | W. B. Marvin Novelties |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 1092 |
| Highest Grade | Hs 2 |
| 1935 Residence | Same Place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Punch Press Operator |
| Township / Ward | Urbana City |
| Est. Birth Year | ~1905 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| John Ryan | Head | — | 35 | ~1905 |
| James Ryan | Son | — | 8 | ~1932 |
| Leona Ryan | Spouse | — | 32 | ~1908 |
Census Appearances
1910
Champaign, Ohio
Son, age 5
Champaign, Ohio · implied b. ~1905 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ryan |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Speaks English | English |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1920
Champaign, Ohio
Son, age 15
Champaign, Ohio · implied b. ~1905 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ryan |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| 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
Champaign, Ohio
Head, age 25
Champaign, Ohio · implied b. ~1905 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ryan |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Married |
| Birthplace | Ohio |
| Age at First Marriage | 22 |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | Shopman |
| Industry | Tool & Die |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 12 |
| Veteran | No |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Champaign-County, Ohio
Head, age 35
Champaign-County, Ohio · implied b. ~1905 — 3 household members
| Surname | Ryan |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | Urbana City |
| 1935 Residence (County) | Champaign |
| Occupation | Punch Press Operator |
| Industry | W. B. Marvin Novelties |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 1092 |
| Highest Grade | Hs 2 |
| 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 Ryan across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father James Ryan (~0.92 confidence) and father James Ryan (~0.92 confidence) and mother Clara Ryan (~0.92 confidence) and mother Clara Ryan (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Ryan
b. ~1849
Source father
● Household
· direct · ~0.92
Father
James Ryan
b. ~1883
Source father
● Household
· direct · ~0.92
Mother
Clara Ryan
b. ~1881
Source mother
● Household
· direct · ~0.92
Mother
Clara Ryan
b. ~1885
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Ryan
Head · 1940 · age 35 · b. ~1905 · 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 — Champaign-County, Ohio
Open full size
1940 US Federal Census — Champaign-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03037-00606)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | William Jackson | 42 | Head | Laborer | Ohio |
| 2 | Marie Jackson | 40 | Wife | — | Ohio |
| 3 | Geo Stokes | 49 | Head | Laborer | Ohio |
| 4 | Meda Stokes | 40 | Wife | — | Ohio |
| 5 | Harrison Stokes | 19 | Son | — | Ohio |
| 6 | Anna Powers | 68 | Head | Date Packer | Ohio |
| 7 | Elizabeth Feith | 91 | Head | — | Germany |
| 8 | Harry Feith | 52 | Son | — | Ohio |
| 9 | John Ryan THIS PERSON | 35 | Head | Punch Press Operator | Ohio |
| 10 | Leona D. Ryan | 32 | Wife | — | Ohio |
| 11 | James Ryan | 8 | Son | — | Ohio |
| 12 | Kelly Blanton | 76 | Head | Laborer | Kentucky |
| 13 | Lena Blanton | 45 | Wife | — | Ohio |
| 14 | Hugh Boyer | 67 | Head | — | Ohio |
| 15 | Hattie Boyer | 57 | Wife | — | Ohio |
| 16 | Henry Paul Allen | 52 | Head | Blacksmith | Ohio |
| 17 | Effie Allen | 48 | Wife | — | Ohio |
| 18 | Marcella Walters | 25 | Daughter | Folder | Ohio |
| 19 | Charlotte Dunham | 22 | Daughter | Folder | Ohio |
| 20 | Allen Walters | 2 | Son | — | Ohio |
| 21 | Clarence Williams | 44 | Head | Auto Mechanic | Ohio |
| 22 | Lucille Williams | 37 | Wife | — | Ohio |
| 23 | Jean Williams | 12 | Daughter | — | Ohio |
| 24 | Carl Roark | 35 | Head | Beaterman | Ohio |
| 25 | Della Roark | 68 | Mother | — | Indiana |
| 26 | Ray Roark | 40 | Son | — | Tennessee |
| 27 | Julia Suite | 65 | Lodger | — | Michigan |
| 28 | Edward Jones | 32 | Head | Baker | Ohio |
| 29 | Olive Jones | 30 | Wife | — | Ohio |
| 30 | Kenny Jones | 8 | Son | — | Ohio |
| 31 | Crystal Jones | 5 | Daughter | — | Ohio |
| 32 | John Hickey | 57 | Head | — | Ohio |
| 33 | Bernice Hickey | 45 | Wife | Seamstress | Ohio |
| 34 | Mary K. Hickey | 17 | Daughter | — | Ohio |
| 35 | John Hickey | 16 | Son | — | Ohio |
| 36 | Richard Hickey | 14 | Son | — | Ohio |
| 37 | Margaret Ann Hickey | 7 | Daughter | — | Ohio |
| 38 | Margaret Davern | 65 | Sister | — | Ohio |
| 39 | Charles Mcdonals | 58 | Head | Fireman | Ohio |
| 40 | Mona Mcdonals | 56 | Wife | — | Ohio |
Pedigree Summary
John
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)