WD
William Donovan — 1940 US Census Record
Model Tree available1940 United States Federal Census · Lucas-County, Ohio
Our Model Tree links this William Donovan across the 1920, 1930 and 1940 US Censuses in Lucas-County, Ohio (XGBoost, ~Confirmed), with identified parents Edward & Leonard — first a son (b.~1915), then head of a 6-person household.
Age 25
b. ~1915
Male
Son
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Lucas-County, Ohio |
| Surname | Donovan |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Toledo City |
| 1935 Residence (County) | Lucas |
| Additional Details | |
| Highest Grade | C 4 |
| 1935 Residence | Same Place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Township / Ward | Toledo City |
| Est. Birth Year | ~1915 |
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 William | Age | Birth yr |
|---|---|---|---|---|
| Elizabeth Donovan | Spouse | — | 45 | ~1895 |
| William Donovan | Son | — | 25 | ~1915 |
| Leonard Donovan | Head | — | 56 | ~1884 |
| David Donovan | Son | — | 26 | ~1914 |
| Robert Donovan | Son | — | 17 | ~1923 |
| Mary Donovan | Daughter | — | 15 | ~1925 |
Census Appearances
1920
Lucas, Ohio
Son, age 4
Lucas, Ohio · implied b. ~1916 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Donovan |
| Given Name | William Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Lucas, Ohio
Son, age 14
Lucas, Ohio · implied b. ~1916 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Donovan |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Lucas-County, Ohio
Son, age 25
Lucas-County, Ohio · implied b. ~1915 — 6 household members
| Surname | Donovan |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Toledo City |
| 1935 Residence (County) | Lucas |
| Highest Grade | C 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 William Donovan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Edward Donovan (~0.92 confidence) and father Leonard Donovan (~0.92 confidence) and father Leonard Donovan (~0.92 confidence) and mother Bess Donovan (~0.92 confidence) and mother Elizabeth Donovan (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Edward Donovan
b. ~1885
Source father
● Household
· direct · ~0.92
Father
Leonard Donovan
b. ~1884
Source father
● Household
· direct · ~0.92
Father
Leonard Donovan
b. ~1885
Source father
● Household
· direct · ~0.92
Mother
Bess Donovan
b. ~1894
Source mother
● Household
· direct · ~0.92
Mother
Elizabeth Donovan
b. ~1895
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Donovan
Son · 1940 · age 25 · b. ~1915 · Ohio
★ You are viewing this record
Sibling
Mary Donovan
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Donovan
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
David Donovan
Sibling · 1940 · age 26
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
32 people indexed on this census page (nara:1940:m-t0627-03261-00482)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | J. L. Shields | 57 | Head | Salesman | Ohio |
| 2 | Anna Shields | 55 | Wife | Bookkeeper | Ohio |
| 4 | Isabelle Healy | None | G. | 45 | C 4 |
| 6 | N. C. Kerr | 69 | Head | Salesman | Ohio |
| 7 | Cora E. Kerr | 67 | Wife | — | Ohio |
| 9 | Leonard Donovan | 56 | Head | Attorney | Ohio |
| 10 | Elizabeth Donovan | 45 | Wife | — | Ohio |
| 11 | David Donovan | 26 | Son | — | Ohio |
| 12 | William Donovan THIS PERSON | 25 | Son | — | Ohio |
| 13 | Robert Donovan | 17 | Son | — | Ohio |
| 14 | Mary Donovan | 15 | Daughter | — | Ohio |
| 16 | Roman Burnor | 53 | Head | Proprietor | Ohio |
| 17 | Stella Burnor | 47 | Wife | — | Ohio |
| 18 | Roman D. Burnor | 23 | Son | — | Ohio |
| 19 | Paul J. Burnor | 21 | Son | Salesman | Ohio |
| 20 | Virginia Burnor | 19 | Daughter | Model | Ohio |
| 21 | Dorothy Wagner | 26 | Daughter | — | Ohio |
| 22 | Janet Wagner | 19 | Granddaughter | — | Ohio |
| 23 | Ann Marie Wagner | 3 | Granddaughter | — | Ohio |
| 24 | Theresa Wagner | 1 | Granddaughter | — | Ohio |
| 25 | Joseph Davis | 34 | Head | Proprietor | Ohio |
| 26 | Josephine Davis | 31 | Wife | — | Ohio |
| 27 | Marilyn Davis | 7 | Daughter | — | Ohio |
| 28 | Bertha Kepler | 60 | Head | Dietician | Ohio |
| 29 | Bertha S. Kepler | 23 | Daughter | — | Ohio |
| 31 | Marion Miller | 40 | Head | Nurse | Canada-Eng |
| 32 | Frances Hall | 55 | Head | Sales Clerk | Ohio |
| 33 | Jean Hall | 21 | Daughter | Sales Clerk | Ohio |
| 34 | Rita Murphy | 23 | Boarder | Teacher | Illinois |
| 35 | Kathleen O'Rourke | 26 | Boarder | Teacher | Michigan |
| 36 | Wm. A. Dance | 72 | Head | Retired | Michigan |
| 37 | Lillian M. Dance | 63 | Wife | — | Mass. |
Pedigree Summary
William + 3 siblings
Gen 1 · 5 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)