WD
William Donahue — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Wayne-County, Michigan
Our Model Tree links this William Donahue across the 1930 and 1940 US Censuses in Wayne-County, Michigan (XGBoost, ~Confirmed) — first a son (b.~1915), then head of a 9-person household.
Age 25
b. ~1915
Male
Son
Born: Michigan
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Wayne-County, Michigan |
| Surname | Donahue |
| Given Name | William Jr. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Detroit City |
| 1935 Residence (County) | Wayne |
| Additional Details | |
| Occupation | Electrical-man |
| Industry | Auto plant |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1250 |
| Highest Grade | H 4 |
| 1935 Residence | Same house |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Occupation | Electrical-Man |
| Township / Ward | Detroit 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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| William Donahue | Son | — | 25 | ~1915 |
| Theresa Donahue | Daughter | — | 19 | ~1921 |
| Marie Donahue | Spouse | — | 45 | ~1895 |
| Della Mcnume | Other | — | 77 | ~1863 |
| William Donahue | Head | — | 44 | ~1896 |
| Russell Donahue | Son | — | 16 | ~1924 |
| Vincent Donahue | Son | — | 17 | ~1923 |
| Donald Donahue | Son | — | 13 | ~1927 |
| John Donahue | Son | — | 11 | ~1929 |
Census Appearances
1930
Wayne, Michigan
Son, age 14
Wayne, Michigan · implied b. ~1916 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Donahue |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Wayne-County, Michigan
Son, age 25
Wayne-County, Michigan · implied b. ~1915 — 9 household members
| Surname | Donahue |
| Given Name | William Jr. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Detroit City |
| 1935 Residence (County) | Wayne |
| Occupation | Electrical-man |
| Industry | Auto plant |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1250 |
| Highest Grade | H 4 |
| 1935 Residence | Same house |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
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 Donahue across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Donahue
Son · 1940 · age 25 · b. ~1915 · Michigan
★ You are viewing this record
Sibling
John Donahue
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Vincent Donahue
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Russell Donahue
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Theresa Donahue
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donald Donahue
Sibling · 1940 · age 13
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 — Wayne-County, Michigan
Open full size
1940 US Federal Census — Wayne-County, Michigan
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01861-00959)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Marie Timme | 13 | daughter | — | Michigan |
| 42 | Leo F. Timme | 53 | head | Clerk | Michigan |
| 43 | Marie Timme | 46 | wife | — | Michigan |
| 44 | Elsie Timme | 19 | daughter | — | Michigan |
| 45 | Leo Timme | 17 | son | — | Michigan |
| 46 | Richard Timme | 14 | son | — | Michigan |
| 47 | Barbara Timme | 9 | daughter | — | Michigan |
| 48 | Helen Timme | 79 | mother | — | Poland |
| 49 | William Donahue | 44 | head | Foreman Electrical | Michigan |
| 50 | Marie Donahue | 45 | wife | — | Michigan |
| 51 | William Jr. Donahue THIS PERSON | 25 | son | Electrical-Man | Michigan |
| 52 | Theresa Donahue | 19 | daughter | Clerical Office | Michigan |
| 53 | Vincent Donahue | 17 | son | — | Michigan |
| 54 | Russell Donahue | 16 | son | — | Michigan |
| 55 | Donald Donahue | 13 | son | — | Michigan |
| 56 | John Donahue | 11 | son | — | Michigan |
| 57 | Della Mcnume | 77 | mother-in-law | — | Michigan |
| 58 | Steven Ostrowski | 46 | head | Sign Artist | Poland |
| 59 | Helen Ostrowski | 39 | wife | Seamstress | Poland |
| 60 | Lucille Ostrowski | 18 | daughter | — | Michigan |
| 61 | Arthur Ostrowski | 12 | son | — | Michigan |
| 62 | Jerome Grzegorczyk | 35 | head | Service Man | Michigan |
| 63 | Marie Grzegorczyk | 32 | wife | — | Pennsylvania |
| 64 | Donald Grzegorczyk | 5 | son | — | Michigan |
| 65 | Frank Grzegorczyk | 2 | son | — | Michigan |
| 66 | Albert P. Kozlowski | 65 | head | — | Poland |
| 67 | Pauline Kozlowski | 46 | wife | — | Michigan |
| 68 | Rita Kozlowski | 18 | daughter | — | Michigan |
| 69 | Raymond Kozlowski | 14 | son | — | Michigan |
| 70 | Theresa Kozlowski | 12 | daughter | — | Michigan |
| 71 | Gerald Kozlowski | 9 | son | — | Michigan |
| 72 | Mike A. Dozefiak | 49 | head | Clerk Office | Michigan |
| 73 | Marie A. Dozefiak | 45 | wife | — | Michigan |
| 74 | Mike Jr. Dozefiak | 16 | son | — | Michigan |
| 75 | Anthony Wieckowski | 32 | son-in-law | Manager | Michigan |
| 76 | Virginia Wieckowski | 21 | daughter | Clerical Office | Michigan |
| 77 | Stanley Skowronski | 49 | head | Manager | Pennsylvania |
| 78 | Josephine Skowronski | 42 | wife | — | Pennsylvania |
| 79 | William Noonan | 20 | nephew | Caretaker Helper | Pennsylvania |
| 80 | Louis Flower | 24 | head | Machinist | Ohio |
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)