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James Mcdermott — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Philadelphia, Pennsylvania
Our Model Tree links this James Mcdermott across the 1930 and 1940 US Censuses in Philadelphia, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1888), then head of a 8-person household.
Age 42
b. ~1888
Male
Head
Born: Pennsylvania
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Philadelphia, Pennsylvania |
| Surname | McDermott |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 27 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Occupation | Laborer |
| Industry | Steel Mill |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 40 |
| Radio Set | R |
| Veteran | No |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Laborer |
| Township / Ward | Philadelphia |
| Est. Birth Year | ~1888 |
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 1930 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Beatrice Mcdermott | Daughter | — | 3 | ~1927 |
| Edith Mcdermott | Daughter | — | 13 | ~1917 |
| Caroline Mcdermott | Daughter | — | 10 | ~1920 |
| Evelyn Mcdermott | Daughter | — | 13 | ~1917 |
| James Mcdermott | Head | — | 42 | ~1888 |
| Le Mcdermott | Son | — | 6 | ~1924 |
| James Mcdermott | Son | — | 12 | ~1918 |
| Catherine Mcdermott | Spouse | — | 36 | ~1894 |
Census Appearances
1930
Philadelphia, Pennsylvania
Head, age 42
Philadelphia, Pennsylvania · implied b. ~1888 — 8 household members
| Surname | McDermott |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 27 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Laborer |
| Industry | Steel Mill |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 40 |
| Radio Set | R |
| Veteran | No |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Philadelphia-County, Pennsylvania
Head, age 50
Philadelphia-County, Pennsylvania · implied b. ~1890 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mc Dermott |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Philadelphia |
| 1935 Residence (County) | Philadelphia |
| Occupation | Repair Foreman |
| Industry | R.R. |
| Class of Worker | PW |
| Income (1939) | 1550 |
| Highest Grade | 8 |
| 1935 Residence | Same Place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 Mcdermott across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
James Mcdermott
Head · 1930 · age 42 · b. ~1888 · 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
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1930 US Federal Census — Philadelphia, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1930:fifteenthcensus00reel2138:0302)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Catherine Doyle | 73 | Head | — | Pennsylvania |
| 2 | John Doyle | 40 | Son | Manager | Pennsylvania |
| 3 | Catherine Doyle | 34 | Daughter | Secretary | Pennsylvania |
| 4 | William White | 37 | Head | Clerk | Pennsylvania |
| 5 | Ruth White | 31 | Wife | — | Pennsylvania |
| 6 | Franklin White | 14 | Son | — | Pennsylvania |
| 7 | Elizabeth White | 74 | Mother | — | Scotland |
| 8 | Ann Langan | 70 | Head | — | Pennsylvania |
| 9 | Agnes Rooney | 65 | Sister | — | Pennsylvania |
| 10 | William Vance | 44 | Head | Salesman | Ohio |
| 11 | Lucille Vance | 20 | Daughter | Maid | Ohio |
| 12 | Winnie Hunt | 25 | Sister | Operator | Tennessee |
| 13 | John Macwilliam | 38 | Head | Painter | Free State Ireland |
| 14 | Mary Macwilliam | 32 | Wife | — | Free State Ireland |
| 15 | Anna Macwilliam | 6 | Daughter | — | Pennsylvania |
| 16 | James Macwilliam | 3 | Daughter | — | Pennsylvania |
| 17 | Daniel Macwilliam | 1 | Son | — | Pennsylvania |
| 18 | Emma Macwilliam | 0 | Daughter | — | Pennsylvania |
| 19 | Emma Crane | 28 | Head | Sales | Pennsylvania |
| 20 | Dorothy Crane | 2 | Son | — | Pennsylvania |
| 21 | William Frankel | 39 | Roomer | Laborer | Pennsylvania |
| 22 | Frank Penalover | 24 | Head | Laborer | Pennsylvania |
| 23 | Julia Penalover | 24 | Wife | — | Pennsylvania |
| 24 | Fred Penalover | 7 | Son | — | Pennsylvania |
| 25 | Timothy Chase | 34 | Head | Laborer | Maryland |
| 26 | Cora Chase | 25 | Wife | — | Maryland |
| 27 | Andrew Chapman | 22 | Step-son | Plasterer | Kentucky |
| 28 | Cassandra Chase | 6 | Daughter | — | Pennsylvania |
| 29 | Viola Chase | 4 | Daughter | — | Pennsylvania |
| 30 | Jerry Green | 22 | Boarder | — | Maryland |
| 31 | Frank Green | 29 | Head | Mover | Pennsylvania |
| 32 | Mary Green | 22 | Wife | Domestic | Pennsylvania |
| 33 | Walter Lester | 26 | Boarder | Laborer | Pennsylvania |
| 34 | Percy Brown | 31 | Head | Stable Man | Maryland |
| 35 | Mary Brown | 27 | Wife | — | Maryland |
| 36 | Marshall Brown | 1 | Son | — | Pennsylvania |
| 37 | Jessie Innes | 32 | Head | Plasterer | Free State Ireland |
| 38 | Rose Innes | 34 | Wife | — | Free State Ireland |
| 39 | Guy Lloyd | 23 | Head | Mechanic | Pennsylvania |
| 40 | Ann Lloyd | 21 | Sister | Sales | Pennsylvania |
| 41 | William Graham | 39 | Head | Laborer | Pennsylvania |
| 42 | Mary Graham | 33 | Wife | — | Virginia |
| 43 | James Mcdermott THIS PERSON | 42 | Head | Laborer | Pennsylvania |
| 44 | Catherine Mcdermott | 36 | Wife | — | Pennsylvania |
| 45 | Edith Mcdermott | 13 | Daughter | Maid | Pennsylvania |
| 46 | James Mcdermott | 12 | Son | — | Pennsylvania |
| 47 | Evelyn Mcdermott | 13 | Daughter | — | Pennsylvania |
| 48 | Caroline Mcdermott | 10 | Daughter | — | Pennsylvania |
| 49 | Le Roy Mcdermott | 6 | Son | — | Pennsylvania |
| 50 | Beatrice Mcdermott | 3 | Daughter | — | Pennsylvania |
Related Census Records
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)