MC
Mary Cassidy — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Philadelphia, Pennsylvania
Our Model Tree links this Mary Cassidy across the 1910, 1920 and 1930 US Censuses in Philadelphia, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1861), then head of a 2-person household.
Age 69
b. ~1861
Female
Head
Born: Ireland
Widowed
1930 Census Record Details
| Census Year | 1930 |
| Location | Philadelphia, Pennsylvania |
| Surname | Cassidy |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 69 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1881 |
| Age at First Marriage | 17 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Home Value / Rent | 15.00 |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Township / Ward | City Of Philadelphia |
| Est. Birth Year | ~1861 |
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.
2 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Rose Cassidy | Daughter | — | 20 | ~1910 |
| Mary Cassidy | Head | — | 69 | ~1861 |
Census Appearances
1910
Philadelphia, Pennsylvania
Spouse, age 45
Philadelphia, Pennsylvania · implied b. ~1865 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cassidy |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Ireland |
| Years Married | 25 |
| Children Born | 3 |
| Children Living | 3 |
| Year of Immigration | 1876 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Driver |
| Industry | Milk Wagon |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1920
Philadelphia, Pennsylvania
Other, age 56
Philadelphia, Pennsylvania · implied b. ~1864 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cassidy |
| Given Name | Mary L. |
| Relationship to Head | Mother |
| Sex | F |
| Color / Race | White |
| Age | 56 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Year of Immigration | 1877 |
| Naturalization Status | Alien |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Irish |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1930
Philadelphia, Pennsylvania
Head, age 69
Philadelphia, Pennsylvania · implied b. ~1861 — 2 household members
| Surname | Cassidy |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 69 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1881 |
| Age at First Marriage | 17 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Home Value / Rent | 15.00 |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
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 Mary Cassidy across 3 US Census years (1910, 1920 and 1930) in Philadelphia, Pennsylvania, using XGBoost record linkage.
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This person
Anchor record
Mary Cassidy
Head · 1930 · age 69 · b. ~1861 · Pennsylvania
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Philadelphia, Pennsylvania
Open full size
1930 US Federal Census — Philadelphia, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1930:fifteenthcensus00reel2118:0566)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Mildred E Dowling | 13 | Daughter | — | Pennsylvania |
| 52 | Edmund Dowling | 47 | Head | Proprietor | Pennsylvania |
| 53 | Jane E Dowling | 45 | Wife | — | Pennsylvania |
| 54 | Mary K Dowling | 14 | Daughter | — | Pennsylvania |
| 55 | Kathryn Dowling | 10 | Daughter | — | Pennsylvania |
| 56 | William Jackson | 40 | Head | Proprietor | Rhode Island |
| 57 | Catherine Jackson | 40 | Wife | — | Pennsylvania |
| 58 | Helen M Haller | 29 | Roomer | Tipper | Pennsylvania |
| 59 | Alice J Sangrie | 61 | Roomer | Presser | Scotland |
| 60 | Ralph L Murphy | 53 | Head | Tank Builder | Pennsylvania |
| 61 | Hanna Murphy | 41 | Wife | — | Ireland |
| 62 | Harry Durtelbach | 57 | Roomer | — | Pennsylvania |
| 63 | Mary J Reiss | 25 | Boarder | — | Pennsylvania |
| 64 | Ambrose Singer | 23 | Roomer | Searcher | Pennsylvania |
| 65 | Andrew A Dickson | 36 | Roomer | Plumber | Scotland |
| 66 | Harry Ditlow | 25 | Head | Proprietor | Russia |
| 67 | Minnie Ditlow | 22 | Wife | — | Pennsylvania |
| 68 | Mary Cassidy THIS PERSON | 69 | Head | — | Ireland |
| 69 | Rose Cassidy | 20 | Daughter | Trimmer | Ireland |
| 70 | James J Meenan | 23 | Head | Dyer | Pennsylvania |
| 71 | Loretta Meenan | 20 | Wife | — | Pennsylvania |
| 72 | Alexander Sadowski | 32 | Head | Proprietor | Poland |
| 73 | Jennie Sadowski | 26 | Wife | — | Poland |
| 74 | Louis Sadowski | 5 | Son | — | Pennsylvania |
| 75 | William Sherman | 59 | Head | Leather Finisher | Pennsylvania |
| 76 | Mary Sherman | 54 | Wife | — | Pennsylvania |
| 77 | William Sherman | 31 | Son | Knitter | Pennsylvania |
| 78 | Anna Sherman | 28 | Daughter | — | New Jersey |
| 79 | William Sherman | 10 | Son | — | Pennsylvania |
| 80 | Elmer Smith | 37 | Head | Proprietor | Pennsylvania |
| 81 | Emily Smith | 41 | Wife | Helper | England |
| 82 | Morris Nussbaum | 50 | Head | Proprietor | Hungary |
| 83 | Regina Nussbaum | 49 | Wife | — | Hungary |
| 84 | Julia Nussbaum | 21 | Daughter | Operator | New York |
| 85 | Gladys Nussbaum | 18 | Daughter | Clerical | New York |
| 86 | Edward Nussbaum | 12 | Son | — | Pennsylvania |
| 87 | Frederick Fink | 48 | Head | Proprietor | Germany |
| 88 | Rosa Fink | 47 | Wife | — | Germany |
| 89 | Emma Fink | 21 | Daughter | Stenographer | Pennsylvania |
| 90 | Frederick Jr Fink | 19 | Son | Meat Cutter | Pennsylvania |
| 91 | George Schumann | 60 | Head | Baker | Germany |
| 92 | Helen Schumann | 59 | Wife | — | Ireland |
| 93 | George J Schumann | 33 | Post Office | Hotel Clerk | Pennsylvania |
| 94 | Gertrude Schumann | 19 | Daughter | Helper | Pennsylvania |
| 95 | William Heffern | 48 | Lodger | Teamster | Pennsylvania |
| 96 | — | None | — | — | — |
| 97 | — | None | — | — | — |
| 98 | — | None | — | — | — |
| 99 | — | None | — | — | — |
| 100 | — | None | — | — | — |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)