JC
James Cassidy — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Montgomery-County, Pennsylvania
Our Model Tree links this James Cassidy across the 1930 and 1940 US Censuses in Montgomery-County, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1902), then head of a 8-person household.
Age 38
b. ~1902
Male
Head
Born: Irish Free State
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Montgomery-County, Pennsylvania |
| Surname | Cassidy |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Irish Free State |
| 1935 Residence (City) | R. |
| 1935 Residence (County) | Montgomery |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Millwright |
| Industry | Hosiery Mill |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 327 |
| Highest Grade | H 4 |
| 1935 Residence | Pennsylvania |
| Birthplace (normalized) | irish free state |
| Occupation | Millwright |
| Township / Ward | Lower Providence |
| Est. Birth Year | ~1902 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| James Cassidy | Son | — | 4 | ~1936 |
| Eileen Cassidy | Daughter | — | 10 | ~1930 |
| James Cassidy | Head | — | 38 | ~1902 |
| Margaret Cassidy | Daughter | — | 5 | ~1935 |
| Mary Cassidy | Daughter | — | 12 | ~1928 |
| Josephine Cassidy | Daughter | — | 9 | ~1931 |
| Mary Cassidy | Spouse | — | 31 | ~1909 |
| Kathleen Cassidy | Daughter | — | 2 | ~1938 |
Census Appearances
1930
Montgomery, Pennsylvania
Head, age 28
Montgomery, Pennsylvania · implied b. ~1902 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cassidy |
| Given Name | James J |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Irish Free State |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birthplace (normalized) | irish free state |
1940
Montgomery-County, Pennsylvania
Head, age 38
Montgomery-County, Pennsylvania · implied b. ~1902 — 8 household members
| Surname | Cassidy |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Irish Free State |
| 1935 Residence (City) | R. |
| 1935 Residence (County) | Montgomery |
| Naturalization Status | Naturalized |
| Occupation | Millwright |
| Industry | Hosiery Mill |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 327 |
| Highest Grade | H 4 |
| 1935 Residence | Pennsylvania |
| Birthplace (normalized) | irish free state |
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 James Cassidy across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
James Cassidy
Head · 1940 · age 38 · b. ~1902 · Pennsylvania
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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 — Montgomery-County, Pennsylvania
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1940 US Federal Census — Montgomery-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03581-00113)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | James Kinney | 12 | nephew | — | Pennsylvania |
| 42 | Morris Hopkinson | 9 | nephew | — | Pennsylvania |
| 43 | Eugene Kessler | 35 | Head | Employment | Pennsylvania |
| 44 | Helen Kessler | 34 | Wife | — | New Jersey |
| 45 | Eugene Kessler | 10 | son | — | Pennsylvania |
| 46 | Edwin Kessler | 4 | son | — | Pennsylvania |
| 47 | Harry Ziegenfuss | 27 | brother in law | Laborer | Pennsylvania |
| 48 | William H. Davis | 53 | Head | Agriculture Foreman | Pennsylvania |
| 49 | Mildred M. Davis | 39 | Wife | — | Pennsylvania |
| 50 | Robert E. Davis | 14 | son | — | Pennsylvania |
| 51 | Benjamin Davis | 12 | son | — | Pennsylvania |
| 52 | Edwin D. Davis | 10 | son | — | Pennsylvania |
| 53 | Arlene Davis | 9 | daughter | — | Pennsylvania |
| 54 | Earl Davis | 7 | son | — | Pennsylvania |
| 55 | Mabel Davis | 3 | daughter | — | Pennsylvania |
| 56 | Ayda Davis | 1 | daughter | — | Pennsylvania |
| 57 | James Cassidy THIS PERSON | 38 | Head | Millwright | Irish Free State |
| 58 | Mary Cassidy | 31 | Wife | — | Irish Free State |
| 59 | Mary A. Cassidy | 12 | daughter | — | Pennsylvania |
| 60 | Eileen Cassidy | 10 | daughter | — | Pennsylvania |
| 61 | Josephine Cassidy | 9 | daughter | — | Pennsylvania |
| 62 | Margaret Cassidy | 5 | daughter | — | Pennsylvania |
| 63 | James Jr. Cassidy | 4 | son | — | Pennsylvania |
| 64 | Kathleen Cassidy | 2 | daughter | — | Pennsylvania |
| 65 | Henry A. Schweinberg | 75 | Head | Farmer | Pennsylvania |
| 66 | Clara Schweinberg | 67 | Wife | — | Pennsylvania |
| 67 | Ralph Davenaught | 33 | Head | Laborer | Pennsylvania |
| 68 | Alberta Davenaught | 29 | Wife | — | Pennsylvania |
| 69 | Ralph Jr. Davenaught | 9 | son | — | Pennsylvania |
| 70 | Doris Davenaught | 6 | daughter | — | Pennsylvania |
| 71 | Martin Davenaught | 5 | son | — | Pennsylvania |
| 72 | William Davenaught | 2 | son | — | Pennsylvania |
| 73 | William Kirkner | 65 | Head | Laborer | Pennsylvania |
| 74 | Sally J. Kirkner | 61 | Wife | — | Pennsylvania |
| 75 | Roy W. Ramsey | 47 | Head | Proprietor | Pennsylvania |
| 76 | Cora Ramsey | 47 | Wife | — | Pennsylvania |
| 77 | Mildred Ramsey | 20 | daughter | — | Pennsylvania |
| 78 | Leroy Ramsey | 23 | son | Helper | Pennsylvania |
| 79 | Dorothy Ramsey | 17 | daughter | — | Pennsylvania |
| 80 | Robert Ramsey | 8 | son | — | 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)