WC
William Cassidy — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Mercer-County, West Virginia
Our Model Tree links this William Cassidy across the 1930 and 1940 US Censuses in Mercer-County, West Virginia (XGBoost, ~Confirmed) — first a head (b.~1879), then head of a 10-person household.
Age 61
b. ~1879
Male
Head
Born: Virginia
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Mercer-County, West Virginia |
| Surname | Cassidy |
| Given Name | William H |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 61 |
| Marital Status | Married |
| Birthplace | Virginia |
| 1935 Residence (City) | Bluefield (City) |
| 1935 Residence (County) | Mercer |
| Additional Details | |
| Occupation | Boiler Foreman |
| Industry | Steam Rail Road |
| Class of Worker | PW |
| Hours Worked | 65 |
| Income (1939) | 3864 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
| Occupation | Boiler Foreman |
| Township / Ward | Bluefield City |
| Est. Birth Year | ~1879 |
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 |
|---|---|---|---|---|
| Clair Harman | Other | — | 4 | ~1936 |
| William Cassidy | Head | — | 61 | ~1879 |
| Joseph Cassidy | Son | — | 30 | ~1910 |
| Ann Harman | Other | — | 7 | ~1933 |
| Bernadine Harman | Daughter | — | 32 | ~1908 |
| Francis Cassidy | Son | — | 16 | ~1924 |
| Annie Cassidy | Spouse | — | 59 | ~1881 |
| Anita Cassidy | Daughter | — | 26 | ~1914 |
| Charles Harman | Other | — | 6 | ~1934 |
| Marcellus Cassidy | Son | — | 23 | ~1917 |
Census Appearances
1930
Mercer, West …
Head, age 51
Mercer, West Virginia · implied b. ~1879 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cassidy |
| Given Name | William D |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Virginia |
| Age at First Marriage | 24 |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Virginia |
| Occupation | Boiler Maker |
| Industry | Rail Road |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 20,000 |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
1940
Mercer-County, West …
Head, age 61
Mercer-County, West Virginia · implied b. ~1879 — 10 household members
| Surname | Cassidy |
| Given Name | William H |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 61 |
| Marital Status | Married |
| Birthplace | Virginia |
| 1935 Residence (City) | Bluefield (City) |
| 1935 Residence (County) | Mercer |
| Occupation | Boiler Foreman |
| Industry | Steam Rail Road |
| Class of Worker | PW |
| Hours Worked | 65 |
| Income (1939) | 3864 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
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.
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This person
Anchor record
William Cassidy
Head · 1940 · age 61 · b. ~1879 · West Virginia
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Mercer-County, West Virginia
Open full size
1940 US Federal Census — Mercer-County, West Virginia
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04428-00222)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Eva M Lilly | 50 | Wife | — | Virginia |
| 2 | James A Lilly | 21 | Son | — | West Virginia |
| 3 | Elizabeth Anne Lilly | 18 | daughter | — | West Virginia |
| 4 | Mary Hope Lilly | 16 | daughter | — | West Virginia |
| 5 | Irene Lilly | 14 | Niece | — | West Virginia |
| 6 | Goody Schlossberg | 43 | Head | Manager & Owner | Virginia |
| 7 | Ada S Schlossberg | 39 | Wife | — | New York |
| 8 | Charlotte Schlossberg | 16 | daughter | — | West Virginia |
| 9 | Alvin Schlossberg | 14 | Son | — | West Virginia |
| 10 | Evelyn Collins | 25 | Servant | Servant | North Carolina |
| 11 | Mary Eaton Porterfield | 40 | Head | Beautician | Virginia |
| 12 | Mary Margaret Porterfield | 15 | daughter | — | West Virginia |
| 13 | Edward S Eaton | 72 | Father | — | Virginia |
| 14 | Eccie Eaton | 63 | Mother | — | Virginia |
| 15 | Ernest G Peterman | 39 | Brother in law | Sales Manager | West Virginia |
| 16 | Margaret Peterman | 36 | Sister | Sales Lady | Virginia |
| 17 | William H Cassidy THIS PERSON | 61 | Head | Boiler Foreman | Virginia |
| 18 | Annie E Cassidy | 59 | Wife | — | Virginia |
| 19 | Joseph H Cassidy | 30 | Son | Electrician Helper | West Virginia |
| 20 | Anita R Cassidy | 26 | daughter | Secretary | West Virginia |
| 21 | Marcellus H Cassidy | 23 | Son | Claim Clerk | West Virginia |
| 22 | Francis T Cassidy | 16 | Son | — | West Virginia |
| 23 | Bernadine E Harman | 32 | daughter | Secretary | West Virginia |
| 24 | Ann T Harman | 7 | granddaughter | — | West Virginia |
| 25 | Charles T Harman | 6 | grandson | — | West Virginia |
| 26 | Clair E Harman | 4 | granddaughter | — | West Virginia |
| 27 | Jess S Salzberg | 39 | Head | Theatre Manager | Wisconsin |
| 28 | Beatrice Salzberg | 31 | Wife | — | Ohio |
| 29 | Richard B Salzberg | 9 | Son | — | Missouri |
| 30 | Harriett A Salzberg | 4 | daughter | — | Missouri |
| 31 | Susan F Salzberg | 2 | daughter | — | Missouri |
| 32 | Mattie Muse | 35 | Maid | Maid | Virginia |
| 33 | Millard W Robbins | 47 | Head | Book Keeper | Virginia |
| 34 | Mint H Robbins | 50 | Wife | — | Virginia |
| 35 | Millard W Jr Robbins | 15 | Son | — | Virginia |
| 36 | Clyde B Smith | 40 | Head | Sect. Manager | West Virginia |
| 37 | Margaret Smith | 38 | Wife | — | West Virginia |
| 38 | Jean Elizabeth Smith | 10 | daughter | — | West Virginia |
| 39 | Richard Bryan Smith | 9 | son | — | West Virginia |
| 40 | John Moffatt Smith | 3 | son | — | West Virginia |
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)