WC
William Cassidy — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Saginaw-County, Michigan
Our Model Tree links this William Cassidy across the 1930 and 1940 US Censuses in Saginaw-County, Michigan (XGBoost, ~Confirmed) — first a son (b.~1922), then head of a 10-person household.
Age 18
b. ~1922
Male
Son
Born: Michigan
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Saginaw-County, Michigan |
| Surname | Cassidy |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Taymouth Twp. |
| 1935 Residence (County) | Saginaw |
| Additional Details | |
| Highest Grade | H-1 |
| 1935 Residence | Same place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Township / Ward | Taymouth Twp |
| Est. Birth Year | ~1922 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Arthur Cassidy | Son | — | 20 | ~1920 |
| Addie Cassidy | Daughter | — | 5 | ~1935 |
| William Cassidy | Son | — | 18 | ~1922 |
| Daniel Gillis | Other | — | 20 | ~1920 |
| H Cassidy | Spouse | — | 44 | ~1896 |
| Edward Cassidy | Son | — | 16 | ~1924 |
| Crosby Cassidy | Son | — | 15 | ~1925 |
| Margaret Cassidy | Daughter | — | 7 | ~1933 |
| Robert Cassidy | Son | — | 13 | ~1927 |
| Arthur Cassidy | Head | — | 44 | ~1896 |
Census Appearances
1930
Saginaw, Michigan
Son, age 8
Saginaw, Michigan · implied b. ~1922 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cassiday |
| Given Name | William F. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Can Read/Write | Yes |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Saginaw-County, Michigan
Son, age 18
Saginaw-County, Michigan · implied b. ~1922 — 10 household members
| Surname | Cassidy |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Taymouth Twp. |
| 1935 Residence (County) | Saginaw |
| Highest Grade | H-1 |
| 1935 Residence | Same place |
| 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 Cassidy across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Cassidy
Son · 1940 · age 18 · b. ~1922 · Michigan
★ You are viewing this record
Sibling
Addie Cassidy
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Arthur Cassidy
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Cassidy
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Cassidy
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Cassidy
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Crosby Cassidy
Sibling · 1940 · age 15
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 — Saginaw-County, Michigan
Open full size
1940 US Federal Census — Saginaw-County, Michigan
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01814-00819)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Roland Bullard | 12 | Son | — | Michigan |
| 2 | Duane Bullard | 8 | Son | — | Michigan |
| 3 | Shirley Bullard | 4 | Daughter | — | Michigan |
| 4 | Nadine Bullard | 2 | Daughter | — | Michigan |
| 5 | Fred W. Klein | 53 | Head | Farmer | Michigan |
| 6 | Emma Klein | 52 | Wife | — | Michigan |
| 7 | George Wells | 41 | Hired man | Laborer | England |
| 8 | Olin Bullard | 39 | Head | Carpenter | Michigan |
| 9 | Ella Bullard | 33 | Wife | — | Michigan |
| 10 | Phyllis Bullard | 10 | Daughter | — | Michigan |
| 11 | Elaine Bullard | 9 | Daughter | — | Michigan |
| 12 | Clyde Bullard | 6 | Son | — | Michigan |
| 13 | Robert Bullard | 4 | Son | — | Michigan |
| 14 | Cordell Green | 44 | Head | Carpenter | Michigan |
| 15 | Clara Green | 42 | Wife | — | Michigan |
| 16 | James Smith | 47 | Head | Telegraph Operator | Michigan |
| 17 | Lillian Smith | 41 | Wife | — | Michigan |
| 18 | Dorothy Smith | 21 | Daughter | Clerk | Michigan |
| 19 | Ronald Smith | 19 | Son | Attendant | Michigan |
| 20 | Jack Smith | 18 | Son | New Worker | Michigan |
| 21 | William Smith | 15 | Son | — | Michigan |
| 22 | Donald Smith | 23 | Head | Attendant | Michigan |
| 23 | Phyllis Smith | 18 | Wife | — | Michigan |
| 24 | Katherine Peart | 66 | Head | — | England |
| 25 | Arthur Cassidy | 44 | Head | Polisher | Michigan |
| 26 | H. Esther Cassidy | 44 | Wife | — | Michigan |
| 27 | Arthur Cassidy | 20 | Son | Laborer | Michigan |
| 28 | William Cassidy THIS PERSON | 18 | Son | — | Michigan |
| 29 | Edward Cassidy | 16 | Son | — | Michigan |
| 30 | Crosby Cassidy | 15 | Son | — | Michigan |
| 31 | Robert Cassidy | 13 | Son | — | Michigan |
| 32 | Margaret Cassidy | 7 | Daughter | — | Michigan |
| 33 | Addie June Cassidy | 5 | Daughter | — | Michigan |
| 34 | Daniel Gillis | 20 | Ward | Laborer | Michigan |
| 35 | Anson M. Dugalette | 76 | Head | — | Michigan |
| 36 | Blanche Dugalette | 66 | Wife | — | Michigan |
| 37 | Joseph Burleson | 72 | Head | Janitor | Michigan |
| 38 | Charles Burleson | 42 | Son | Painter B.B. | Michigan |
| 39 | William C. Kinsey | 52 | Son-in-law | Relief Man | Michigan |
| 40 | Ruth C. Kinsey | 46 | Daughter | — | Michigan |
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)