JC
James Cassidy — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Baltimore-City-County, Maryland
Our Model Tree links this James Cassidy across the 1920, 1930 and 1940 US Censuses in Baltimore-City-County, Maryland (XGBoost, ~Confirmed) — first a head (b.~1863), then head of a 3-person household.
Age 77
b. ~1863
Male
Head
Born: Maryland
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-City-County, Maryland |
| Surname | Cassidy |
| Given Name | James J |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 77 |
| Marital Status | Widowed |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Additional Details | |
| Industry | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same Home |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1863 |
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 James | Age | Birth yr |
|---|---|---|---|---|
| Edith Cassidy | Other | — | 75 | ~1865 |
| James Cassidy | Head | — | 77 | ~1863 |
| Mary Cassidycasson | Daughter | — | 44 | ~1896 |
Census Appearances
1920
None, Maryland
Head, age 58
None, Maryland · implied b. ~1862 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cassady |
| Given Name | James B |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 58 |
| Marital Status | Married |
| Birthplace | Maryland |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Machinist |
| Industry | Machinery |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Baltimore, Maryland
Head, age 68
Baltimore, Maryland · implied b. ~1862 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cassady |
| Given Name | J. Albert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 68 |
| Marital Status | Married |
| Birthplace | Maryland |
| Age at First Marriage | 38 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Maryland |
| Occupation | Merchant |
| Industry | Plumbing |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 14000 |
| Radio Set | R |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-City-County, Maryland
Head, age 77
Baltimore-City-County, Maryland · implied b. ~1863 — 3 household members
| Surname | Cassidy |
| Given Name | James J |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 77 |
| Marital Status | Widowed |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Industry | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same Home |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
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 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Cassidy
Head · 1940 · age 77 · b. ~1863 · Maryland
★ 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 — Baltimore-City-County, Maryland
Open full size
1940 US Federal Census — Baltimore-City-County, Maryland
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01516-00660)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Earl A Burnham | 14 | Son | — | Maryland |
| 2 | Lawrence Fowler | 40 | Head | Clerk | N. Hampshire |
| 3 | Lillian A Fowler | 25 | Wife | — | Maryland |
| 4 | Shirley A Fowler | 5 | Daughter | — | Delaware |
| 5 | Elsie M Fowler | 2 | Daughter | — | Maryland |
| 6 | Robert G Dooms | 27 | Head | Machin-Op | Maryland |
| 7 | Frances J Dooms | 22 | Wife | New Worker | Delaware |
| 8 | Doris Louise Dooms | 1 | Daughter | — | Maryland |
| 9 | Clarence Shaffer | 24 | Head | Fireman | Maryland |
| 10 | Martha M Shaffer | 22 | Wife | — | Maryland |
| 11 | Pauline E Shaffer | 5 | Daughter | — | Maryland |
| 12 | Shirley A Shaffer | 1 | Daughter | — | Maryland |
| 13 | Samuel J Hardesty | 23 | Head | Cab Driver | Maryland |
| 14 | Winnetta J Hardesty | 19 | Wife | — | Maryland |
| 15 | Ann N Hardesty | 0 | Daughter | — | Maryland |
| 16 | Angelina Arduano | 45 | Head | Tailor | Italy |
| 17 | Maria Arduano | 70 | Mother | — | Italy |
| 18 | Rocco Arduano | 42 | Brother | — | Italy |
| 19 | Teresa Arduano | 27 | Daughter | Tailor | Maryland |
| 20 | Leo P Brown | 26 | Head | Foreman | Maryland |
| 21 | Eva L Brown | 29 | Wife | — | Maryland |
| 22 | Patricia M Brown | 0 | Daughter | — | Maryland |
| 23 | Francis A Rachiell | 46 | Head | Laborer | Maryland |
| 24 | Ida A Rachiell | 34 | Wife | — | Maryland |
| 25 | Francis J Rachiell | 6 | Son | — | Maryland |
| 26 | Oliver E Payne | 21 | Head | Pres. Op | Maryland |
| 27 | Irene E Payne | 20 | Wife | — | Maryland |
| 28 | James J Cassidy THIS PERSON | 77 | Head | — | Maryland |
| 29 | Edith E Cassidy | 75 | Sister | — | Pennsylvania |
| 30 | Mary E Cassidy|Casson | 44 | Daughter | Teacher | Maryland |
| 31 | Patrick J Burns | 67 | Head | — | Ireland |
| 32 | Catherine Burns | 65 | Wife | — | Ireland |
| 33 | Mary E Burns | 31 | Daughter | Clerk | Maryland |
| 34 | Michael J Gately | 45 | Head | Manager | Maryland |
| 35 | Margaret A Gately | 42 | Sister | — | Maryland |
| 36 | Joseph J Gately | 36 | Brother | Clerk | Maryland |
| 37 | Eva M Reese | 48 | Lodger | — | Maryland |
| 38 | Frank W Heath | 54 | Head | Baker | Maine |
| 39 | Eva B Heath | 57 | Wife | — | Maine |
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)