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Mary Mcdermott — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Providence, Rhode Island
Our Model Tree links this Mary Mcdermott across the 1920, 1930 and 1940 US Censuses in Providence, Rhode Island (XGBoost, ~Confirmed) — first a spouse (b.~1883), then head of a 8-person household.
Age 47
b. ~1883
Female
Spouse
Born: Rhode Island
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Providence, Rhode Island |
| Surname | McDermott |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Rhode Island |
| Age at First Marriage | 17 |
| Father's Birthplace | Rhode Island |
| Mother's Birthplace | Rhode Island |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Rhode Island |
| Birth Country | United States |
| Birthplace (normalized) | rhode island |
| Township / Ward | Pawtucket City |
| Est. Birth Year | ~1883 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Mcdermott | Daughter | — | 7 | ~1923 |
| Mary Mcdermott | Daughter | — | 15 | ~1915 |
| Thomas Mcdermott | Head | — | 51 | ~1879 |
| Mary Mcdermott | Other | — | 18 | ~1912 |
| Thomas Mcdermott | Son | — | 11 | ~1919 |
| Thomas Mcdermott | Son | — | 17 | ~1913 |
| Thomas Mcdermott | Son | — | 21 | ~1909 |
| Mary Mcdermott | Spouse | — | 47 | ~1883 |
Census Appearances
1920
Providence, Rhode …
Spouse, age 36
Providence, Rhode Island · implied b. ~1884 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McDermott |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Rhode Island |
| Father's Birthplace | Rhode Island |
| Mother's Birthplace | England |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Rhode Island |
| Birth Country | United States |
| Birthplace (normalized) | rhode island |
1930
Providence, Rhode …
Spouse, age 47
Providence, Rhode Island · implied b. ~1883 — 8 household members
| Surname | McDermott |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Rhode Island |
| Age at First Marriage | 17 |
| Father's Birthplace | Rhode Island |
| Mother's Birthplace | Rhode Island |
| Can Read/Write | Yes |
| Birth State | Rhode Island |
| Birth Country | United States |
| Birthplace (normalized) | rhode island |
1940
Providence-County, Rhode …
Head, age 56
Providence-County, Rhode Island · implied b. ~1884
●
Primary link
· ~Confirmed · 1 source
XGBoost
| Surname | McDermott |
| Given Name | Margaret |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 56 |
| Marital Status | Widowed |
| Birthplace | Rhode Island |
| 1935 Residence (City) | Providence city |
| 1935 Residence (County) | Providence |
| Occupation | Cleaner |
| Industry | SUR govt. bldg. |
| Class of Worker | GW |
| Hours Worked | 20 |
| Income (1939) | 606 |
| Highest Grade | Hs 2 |
| 1935 Residence | Same place |
| Birth State | Rhode Island |
| Birth Country | United States |
| Birthplace (normalized) | rhode island |
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 Mcdermott across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Mcdermott
Spouse · 1930 · age 47 · b. ~1883 · Rhode Island
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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 — Providence, Rhode Island
Open full size
1930 US Federal Census — Providence, Rhode Island
Page Contents
50 people indexed on this census page (ia:1930:15thcensus2173unit:0793)
| Line | Name | Age | Relation | Birthplace |
|---|---|---|---|---|
| 51 | Mcdermott, Maurice J Van Vrank | 20 | Boarder | Rhode Island |
| 52 | George J Van Vrank | 24 | Boarder | Rhode Island |
| 53 | James Monahan | 24 | Head | Rhode Island |
| 54 | Edward J Boulger | 51 | Head | Rhode Island |
| 55 | Catherine Boulger | 50 | Wife | Pennsylvania |
| 56 | Edward Boulger | 22 | Son | Rhode Island |
| 57 | James Boulger | 17 | Son | Rhode Island |
| 58 | William J Boulger | 15 | Son | Rhode Island |
| 59 | John Boulger | 12 | Son | Rhode Island |
| 60 | Anna M Boulger | 8 | Daughter | Rhode Island |
| 61 | Sidney Spaulding | 30 | Head | Rhode Island |
| 62 | Mildred Spaulding | 25 | Wife | Rhode Island |
| 63 | Joseph Lewis | 77 | Head | England |
| 64 | Martha Lewis | 71 | Wife | England |
| 65 | William Lewis | 45 | Son | Rhode Island |
| 66 | James Lewis | 43 | Son | Rhode Island |
| 67 | Albert Lewis | 41 | Son | Rhode Island |
| 68 | George Lewis | 39 | Son | Rhode Island |
| 69 | Arthur Lewis | 37 | Son | Rhode Island |
| 70 | Walter Lewis | 35 | Son | Rhode Island |
| 71 | Ernest Lewis | 33 | Son | Rhode Island |
| 72 | Benjamin Lewis | 31 | Son | Rhode Island |
| 73 | Thomas Mcdermott | 30 | Head | Canada-English |
| 74 | Isabelle Mcdermott | 30 | Wife | Rhode Island |
| 75 | Thomas J Jr Mcdermott | 9 | Son | Rhode Island |
| 76 | William J Mcdermott | 7 | Son | Rhode Island |
| 77 | James Mcdermott | 5 | Son | Rhode Island |
| 78 | Robert Mcdermott | 3 | Son | Rhode Island |
| 79 | Isabelle Mcdermott | 0 | Daughter | Rhode Island |
| 80 | Thomas Mcdermott | 35 | Head | Rhode Island |
| 81 | James Mcdermott | 32 | Brother | Rhode Island |
| 82 | William Mcdermott | 28 | Brother | Rhode Island |
| 83 | Thomas Mcdermott | 55 | Head | Rhode Island |
| 84 | Mary Mcdermott | 50 | Wife | Rhode Island |
| 85 | Thomas Mcdermott | 25 | Son | Rhode Island |
| 86 | Mary Mcdermott | 21 | Daughter | Rhode Island |
| 87 | Thomas Mcdermott | 51 | Head | Rhode Island |
| 88 | Mary Mcdermott THIS PERSON | 47 | Wife | Rhode Island |
| 89 | Thomas Mcdermott | 21 | Son | Rhode Island |
| 90 | Mary Mcdermott | 18 | Daughter-in-law | Rhode Island |
| 91 | Thomas Mcdermott | 17 | Son | Rhode Island |
| 92 | Mary Mcdermott | 15 | Daughter | Rhode Island |
| 93 | Thomas Mcdermott | 11 | Son | Rhode Island |
| 94 | Mary Mcdermott | 7 | Daughter | Rhode Island |
| 95 | Alfred Goulet | 44 | Head | Canada-French |
| 96 | Cora Dupre | 50 | Sister | Rhode Island |
| 97 | Mary Lachance | 60 | Head | Poland |
| 98 | Mary Lachance | 38 | Daughter | Poland |
| 99 | Joseph Lachance | 14 | Son | Rhode Island |
| 100 | Mary Lachance | 13 | Daughter | Rhode Island |
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)