JC
John Cassidy — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Beaver-County, Pennsylvania
Our Model Tree links this John Cassidy across the 1920, 1930 and 1940 US Censuses in Beaver-County, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1889), then head of a 3-person household.
Age 51
b. ~1889
Male
Head
Born: Kentucky
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Beaver-County, Pennsylvania |
| Surname | Cassidy |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Kentucky |
| 1935 Residence (City) | Aliquippa Borough |
| 1935 Residence (County) | Beaver |
| Additional Details | |
| Occupation | engineer |
| Industry | railroad |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 2189 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Occupation | Engineer |
| Township / Ward | Aliquippa Borough |
| Est. Birth Year | ~1889 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Wilma Cassidy | Daughter | — | 12 | ~1928 |
| John Cassidy | Head | — | 51 | ~1889 |
| Antha Cassidy | Spouse | — | 51 | ~1889 |
Census Appearances
1920
Beaver, Pennsylvania
Head, age 31
Beaver, Pennsylvania · implied b. ~1889 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cassady |
| Given Name | Jordan |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Occupation | Equipment |
| Industry | Steel Mill |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Free/Mortgaged | R |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1930
Beaver, Pennsylvania
Head, age 41
Beaver, Pennsylvania · implied b. ~1889 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cassidy |
| Given Name | Jordan C. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Kentucky |
| Age at First Marriage | 21 |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Occupation | Engineer |
| Industry | Steam Railroad |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 30.00 |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Beaver-County, Pennsylvania
Head, age 51
Beaver-County, Pennsylvania · implied b. ~1889 — 3 household members
| Surname | Cassidy |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Kentucky |
| 1935 Residence (City) | Aliquippa Borough |
| 1935 Residence (County) | Beaver |
| Occupation | engineer |
| Industry | railroad |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 2189 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
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 John Cassidy across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Cassidy
Head · 1940 · age 51 · b. ~1889 · Pennsylvania
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Beaver-County, Pennsylvania
Open full size
1940 US Federal Census — Beaver-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03425-00451)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | William Treher | 36 | Head | Burner | Indiana |
| 42 | Helen Treher | 31 | Wife | — | Maryland |
| 43 | Joseph Mc Garry | 30 | Head | Inspector | Maryland |
| 44 | Hazel Mc Garry | 30 | Wife | — | Maryland |
| 45 | Janet Mc Garry | 3 | Daughter | — | Pennsylvania |
| 46 | Rachel Vest | 49 | Mother-in-law | — | Maryland |
| 47 | Harry Vest | 22 | Son-in-law | Armature Winder | Pennsylvania |
| 48 | John Cassidy THIS PERSON | 51 | Head | Engineer | Kentucky |
| 49 | Antha Cassidy | 51 | Wife | — | Kentucky |
| 50 | Wilma Cassidy | 12 | Daughter | — | Pennsylvania |
| 51 | Frank Beck | 44 | Head | Wire Gauger | N. Carolina |
| 52 | Martha Beck | 37 | Wife | — | Georgia |
| 53 | Dorothy Beck | 17 | Daughter | — | Georgia |
| 54 | Agnes Beck | 16 | Daughter | — | Pennsylvania |
| 55 | Helen Beck | 14 | Daughter | — | Pennsylvania |
| 56 | Frank Beck | 12 | Son | — | Pennsylvania |
| 57 | Ernest Beck | 10 | Son | — | Pennsylvania |
| 58 | Hazel Beck | 7 | Daughter | — | Pennsylvania |
| 59 | Shirley Beck | 4 | Daughter | — | Pennsylvania |
| 60 | Merle Beck | 1 | Daughter | — | Pennsylvania |
| 61 | Hugh Orr | 50 | Head | Wire Annealer | Ireland |
| 62 | Grace Orr | 41 | Wife | — | Scotland |
| 63 | Andrew Orr | 19 | Son | — | Scotland |
| 64 | Alex Orr | 17 | Son | — | Scotland |
| 65 | Frank Orr | 10 | Son | — | Pennsylvania |
| 66 | Glenn Morningstar | 21 | Head | Tractor Driver | Pennsylvania |
| 67 | Ann Morningstar | 25 | Wife | — | Pennsylvania |
| 68 | Mary Morningstar | 0 | Daughter | — | Pennsylvania |
| 69 | George Thomas | 65 | Head | — | Wales |
| 70 | Raymond Thomas | 19 | Son | — | Pennsylvania |
| 71 | Herbert Thomas | 16 | Son | — | Pennsylvania |
| 72 | Wendell Thomas | 24 | Head | Clerk | Pennsylvania |
| 73 | Betty Thomas | 24 | Wife | Clerk | Wales |
| 74 | Jerome Riker | 39 | Head | Merchant | W. Virginia |
| 75 | Madeline Riker | 29 | Wife | — | Pennsylvania |
| 76 | Stephen Riker | 4 | Son | — | Pennsylvania |
| 77 | Myron E. Rowley | 41 | Head | Attorney | Pennsylvania |
| 78 | Ethel M. Rowley | 43 | Wife | — | Pennsylvania |
| 79 | James E. Rowley | 13 | Son | — | Pennsylvania |
| 80 | Mary E. Rowley | 11 | Daughter | — | Pennsylvania |
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)