WC
William Cassidy — 1940 US Census Record
Model Tree available1940 United States Federal Census · Wayne-County, Michigan
Our Model Tree links this William Cassidy across the 1920, 1930 and 1940 US Censuses in Wayne-County, Michigan (XGBoost, ~Confirmed), with identified parents Joseph & Ida — first a son (b.~1914), then head of a 4-person household.
Age 26
b. ~1914
Male
Son
Born: Minnesota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Wayne-County, Michigan |
| Surname | Cassidy |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Detroit City |
| 1935 Residence (County) | Wayne |
| Additional Details | |
| Occupation | Butcher |
| Industry | Brewery |
| Class of Worker | PW |
| Hours Worked | 32 |
| Income (1939) | 0 |
| Highest Grade | Hs 2 |
| 1935 Residence | Same place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Occupation | Butcher |
| Township / Ward | Detroit City |
| Est. Birth Year | ~1914 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Ida Cassidy | Head | — | 63 | ~1877 |
| William Cassidy | Son | — | 26 | ~1914 |
| Alice Cassidy | Daughter | — | 28 | ~1912 |
| Charles Cassidy | Son | — | 35 | ~1905 |
Census Appearances
1920
Wayne, Michigan
Son, age 6
Wayne, Michigan · implied b. ~1914 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cassidy |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Canada |
| Occupation | none |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1930
Wayne, Michigan
Son, age 16
Wayne, Michigan · implied b. ~1914 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cassidy |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Canada-English |
| Can Read/Write | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Wayne-County, Michigan
Son, age 26
Wayne-County, Michigan · implied b. ~1914 — 4 household members
| Surname | Cassidy |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Detroit City |
| 1935 Residence (County) | Wayne |
| Occupation | Butcher |
| Industry | Brewery |
| Class of Worker | PW |
| Hours Worked | 32 |
| Income (1939) | 0 |
| Highest Grade | Hs 2 |
| 1935 Residence | Same place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
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 Cassidy across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Joseph Cassidy (~0.92 confidence) and mother Ida Cassidy (~0.92 confidence) and mother Ida Cassidy (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Joseph Cassidy
b. ~1866
Source father
● Household
· direct · ~0.92
Mother
Ida Cassidy
b. ~1877
Source mother
● Household
· direct · ~0.92
Mother
Ida Cassidy
b. ~1877
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Cassidy
Son · 1940 · age 26 · b. ~1914 · Michigan
★ You are viewing this record
Sibling
Alice Cassidy
Sibling · 1940 · age 28
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Cassidy
Sibling · 1940 · age 35
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-t0627-01876-00605)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Archille Cordy | 58 | Head | Weaver | Belgium |
| 42 | Margaret Cordy | 54 | Wife | — | Belgium |
| 43 | Eva Cordy | 21 | Daughter | Bottle Cleaner | England |
| 44 | Louie Strassburg | 75 | Head | — | Germany |
| 45 | Marie Strassburg | 65 | Wife | — | Germany |
| 46 | Peter Fall | 65 | Lodger | — | Michigan |
| 47 | Louis Bitthy | 61 | Head | Proprietor | Michigan |
| 48 | Mary Bitthy | 62 | Wife | Clerk | Canada English |
| 49 | Ida Cassidy | 63 | Head | — | Canada English |
| 50 | Alice Cassidy | 28 | Daughter | Bookkeeper | Canada English |
| 51 | William Cassidy THIS PERSON | 26 | Son | Butcher | Minnesota |
| 52 | Charles Cassidy | 35 | Son | Janitor | Minnesota |
| 53 | Donato Di Virgilio | 51 | Head | Station Attendant | Italy |
| 54 | Ida Di Virgilio | 46 | Wife | — | Italy |
| 55 | Dina Di Virgilio | 22 | Daughter | Marker | Pennsylvania |
| 56 | Elma Di Virgilio | 16 | Daughter | — | Pennsylvania |
| 57 | Lula Di Virgilio | 15 | Daughter | — | Michigan |
| 58 | Tino Di Virgilio | 13 | Son | — | Michigan |
| 59 | Catherine Archibald | 64 | Head | — | Scotland |
| 60 | James Archibald | 36 | Son | Machinist | Scotland |
| 61 | James Wallace | 58 | Brother | — | Scotland |
| 62 | Minnie Harms | 84 | Head | — | New York |
| 63 | Agnes Echout | 50 | Head | Janitress | Michigan |
| 64 | Charles Echout | 20 | Son | Driver | Michigan |
| 65 | Chester Echout | 18 | Son | Jumper | Michigan |
| 66 | Jack Echout | 15 | Son | — | Michigan |
| 67 | Edgar Echout | 14 | Son | — | Michigan |
| 68 | Yves Bonguenerre | 29 | Head | Welder | Michigan |
| 69 | Margie Bonguenerre | 24 | Wife | — | Michigan |
| 70 | Janice Bonguenerre | 1 | Daughter | — | Michigan |
| 71 | Josephine Gardner | 49 | Mother | Maid | France |
| 72 | Marie Gardner | 27 | Sister | Stenographer | Michigan |
| 73 | Edmer Berner | 54 | Head | Laborer | Michigan |
| 74 | Clara Berner | 51 | Wife | — | Michigan |
| 75 | Harold Berner | 30 | Son | Laborer | Michigan |
| 76 | Leonard Berner | 26 | Son | Floor Man | Michigan |
| 77 | Chester Berner | 25 | Son | Fire Maker | Michigan |
| 78 | Edith Berner | 19 | Daughter | Laborer | Michigan |
| 79 | Bernice Berner | 16 | Daughter | — | Michigan |
| 80 | Marvin Berner | 14 | Son | — | Michigan |
Pedigree Summary
William + 2 siblings
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)