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John Ryan — 1940 US Census Record
Model Tree available1940 United States Federal Census · Washington-County, Iowa
Our Model Tree links this John Ryan across the 1920, 1930 and 1940 US Censuses in Washington-County, Iowa (XGBoost, ~Confirmed), with identified parents John & George — first a son (b.~1898), then head of a 5-person household.
Age 42
b. ~1898
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Washington-County, Iowa |
| Surname | Ryan |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Washington |
| 1935 Residence (County) | Washington |
| Additional Details | |
| Highest Grade | H 4 |
| 1935 Residence | Same house |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Washington |
| Est. Birth Year | ~1898 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Mary Ryan | Daughter | — | 30 | ~1910 |
| Bonnie Ryan | Daughter | — | 19 | ~1921 |
| George Ryan | Head | — | 63 | ~1877 |
| George Ryan | Son | — | 21 | ~1919 |
| John Ryan | Son | — | 42 | ~1898 |
Census Appearances
1920
Washington, Iowa
Son, age 22
Washington, Iowa · implied b. ~1898 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ryan |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | Laborer |
| Industry | on Railroad |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Washington, Iowa
Son, age 31
Washington, Iowa · implied b. ~1899 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ryan |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | Laborer |
| Industry | Rail Road |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Washington-County, Iowa
Son, age 42
Washington-County, Iowa · implied b. ~1898 — 5 household members
| Surname | Ryan |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Washington |
| 1935 Residence (County) | Washington |
| Highest Grade | H 4 |
| 1935 Residence | Same house |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Ryan (~0.92 confidence) and father George Ryan (~0.92 confidence) and mother Mary Ryan (~0.92 confidence) and mother Mary Ryan (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Ryan
b. ~1871
Source father
● Household
· direct · ~0.92
Father
George Ryan
b. ~1877
Source father
● Household
· direct · ~0.92
Mother
Mary Ryan
b. ~1876
Source mother
● Household
· direct · ~0.92
Mother
Mary Ryan
b. ~1873
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Ryan
Son · 1940 · age 42 · b. ~1898 · Iowa
★ You are viewing this record
Sibling
Bonnie Ryan
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Ryan
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Ryan
Sibling · 1940 · age 30
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 — Washington-County, Iowa
Open full size
1940 US Federal Census — Washington-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01211-00447)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Delmar J. Miller | 22 | Head | Owner Operator | Iowa |
| 42 | Marian Miller | 17 | Wife | — | Iowa |
| 43 | Mary Dougal | 57 | Head | — | Illinois |
| 44 | John M. Kelly | 62 | Head | Salesman | Iowa |
| 45 | Ellen B. Kelly | 57 | Wife | — | Iowa |
| 46 | Lenord L. Mcdonald | 23 | Head | Salesman | Missouri |
| 47 | Ninnifred Mcdonald | 20 | Wife | — | Missouri |
| 48 | Laurence E. Travis | 29 | Head | Manager | Iowa |
| 49 | Gertrude Travis | 30 | Wife | — | Iowa |
| 50 | Reggie Janne Travis | 5 | Daughter | — | Iowa |
| 51 | Mary Sharon Travis | 1 | Daughter | — | Iowa |
| 52 | Loise Hombacher | 81 | Head | — | Iowa |
| 53 | Eli E. Stutsman | 58 | Head | Medical Doctor | Iowa |
| 54 | Nina Stutsman | 46 | Wife | — | Iowa |
| 55 | Robert Stutsman | 27 | Son | — | Iowa |
| 56 | Donald Stutsman | 22 | Son | Owner Manager | Iowa |
| 57 | Vera Stutsman | 20 | Daughter | Third Grade Teacher | Iowa |
| 58 | Virginia Stutsman | 20 | Daughter | House Worker | Iowa |
| 59 | Fred Burger | 44 | Head | Owner Manager | Illinois |
| 60 | Margaret Burger | 42 | Wife | — | Iowa |
| 61 | Mable A. Burger | 21 | Daughter | First Grade Teacher | Iowa |
| 62 | Donald Burger | 17 | Son | — | Iowa |
| 63 | Henry J. Corcoran | 47 | Head | Midwife | Ireland |
| 64 | Gertrude Halters | 52 | Housekeeper | House Keeper | Illinois |
| 65 | George T. Ryan | 63 | Head | — | Iowa |
| 66 | John Ryan THIS PERSON | 42 | Son | — | Iowa |
| 67 | Mary Louise Ryan | 30 | Daughter | Switch Board Operator | Iowa |
| 68 | George T. Ryan | 21 | Son | House Worker | Iowa |
| 69 | Bonnie Ryan | 19 | Daughter | — | Iowa |
| 70 | James Casey | 69 | Head | Waiter | Iowa |
| 71 | Margaret Casey | 68 | Wife | — | Illinois |
| 72 | James Casey | 24 | Son | Waiter | Iowa |
| 73 | Bernard Half | 41 | Head | Shipping Clerk | Iowa |
| 74 | Anna M. Half | 29 | Wife | Shipping Clerk | Iowa |
| 75 | Craig J. Half | 2 | Son | — | Iowa |
| 76 | End Of Half | None | Block | — | — |
| 77 | Emmit Hayes | 45 | Head | Owner Manager | Iowa |
| 78 | Nina Hayes | 50 | Wife | — | Iowa |
| 79 | Helen Hayes | 16 | Daughter | — | Iowa |
| 80 | Mable Hayes | 14 | Daughter | — | Iowa |
Pedigree Summary
John + 3 siblings
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)