JD
John Donovan — 1940 US Census Record
Model Tree available1940 United States Federal Census · Walla-Walla-County, Washington
Our Model Tree links this John Donovan across the 1920, 1930 and 1940 US Censuses in Walla-Walla-County, Washington (XGBoost, ~Confirmed), with identified parents Con & Cornelius — first a head (b.~1906), then head of a 6-person household.
Age 34
b. ~1906
Male
Head
Born: Washington
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Walla-Walla-County, Washington |
| Surname | Donovan |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Washington |
| 1935 Residence (City) | Hadley |
| 1935 Residence (County) | Walla Walla |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 70 |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
| Occupation | Farmer |
| Township / Ward | Hadley |
| Est. Birth Year | ~1906 |
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 |
|---|---|---|---|---|
| John Donovan | Head | — | 34 | ~1906 |
| John Collins | Other | — | 34 | ~1906 |
| Ora Mack | Other | — | 57 | ~1883 |
| Rufus Peterson | Other | — | 33 | ~1907 |
| Thomas Donovan | Son | — | 1 | ~1939 |
| Edna Donovan | Spouse | — | 25 | ~1915 |
Census Appearances
1920
Walla Walla, …
Son, age 14
Walla Walla, Washington · implied b. ~1906 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Donovan |
| Given Name | John T. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Washington |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1930
Walla Walla, …
Son, age 24
Walla Walla, Washington · implied b. ~1906 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Donavan |
| Given Name | John T. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Washington |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1940
Walla-Walla-County, Washington
Head, age 34
Walla-Walla-County, Washington · implied b. ~1906 — 6 household members
| Surname | Donovan |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Washington |
| 1935 Residence (City) | Hadley |
| 1935 Residence (County) | Walla Walla |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 70 |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
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 Donovan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Con Donavan (~0.92 confidence) and father Cornelius Donovan (~0.92 confidence) and mother Elizabeth Donovan (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Con Donavan
b. ~1873
Source father
● Household
· direct · ~0.92
Father
Cornelius Donovan
b. ~1874
Source father
● Household
· direct · ~0.92
Mother
Elizabeth Donovan
b. ~1886
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Donovan
Head · 1940 · age 34 · b. ~1906 · Washington
★ 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 — Walla-Walla-County, Washington
Open full size
1940 US Federal Census — Walla-Walla-County, Washington
Page Contents
15 people indexed on this census page (nara:1940:m-t0627-04367-00803)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Craig Smiley | 3 | Son | — | Washington |
| 42 | Jay Richardson | 45 | Head | Farmer | Washington |
| 43 | Blanch Richardson | 45 | Wife | — | Washington |
| 44 | Howard Kelley | 21 | Son | Laborer | Washington |
| 45 | George Spencer | 79 | Head | Laborer | England |
| 46 | Dan Enquist | 35 | Lodger | Laborer | Washington |
| 47 | Rabe Nahrin | 54 | Lodger | Laborer | Missouri |
| 48 | James W. Morris | 34 | Lodger | Laborer | Oregon |
| 49 | John Donovan THIS PERSON | 34 | Head | Farmer | Washington |
| 50 | Edna Donovan | 25 | Wife | — | Oregon |
| 51 | Thomas Donovan | 1 | Son | — | Washington |
| 52 | Rufus Peterson | 33 | Lodger | Laborer | Washington |
| 53 | John R. Collins | 34 | Lodger | Laborer | North Dakota |
| 54 | Ora Mack | 57 | Lodger | Laborer | Michigan |
| 55 | Lester Barrett | 23 | Head | — | Washington |
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)