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Mary Mcelroy — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Providence-County, Rhode Island
Our Model Tree links this Mary Mcelroy across the 1930 and 1940 US Censuses in Providence-County, Rhode Island (XGBoost, ~Confirmed) — first a daughter (b.~1903), then head of a 6-person household.
Age 37
b. ~1903
Female
Daughter
Born: Rhode Island
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Providence-County, Rhode Island |
| Surname | McElroy |
| Given Name | Mary H. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Single |
| Birthplace | Rhode Island |
| 1935 Residence (City) | Providence City |
| 1935 Residence (County) | Providence |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same Place |
| Birth State | Rhode Island |
| Birth Country | United States |
| Birthplace (normalized) | rhode island |
| Township / Ward | Providence City |
| Est. Birth Year | ~1903 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| John Mcelroy | Head | — | 69 | ~1871 |
| Mary Mcelroy | Daughter | — | 37 | ~1903 |
| James Mcelroy | Other | — | 15 | ~1925 |
| Catherine Mcelroy | Spouse | — | 69 | ~1871 |
| John Mcelroy | Son | — | 34 | ~1906 |
| Bartholomew Mcelroy | Son | — | 35 | ~1905 |
Census Appearances
1930
Providence, Rhode …
Other, age 26
Providence, Rhode Island · implied b. ~1904 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mc Elroy |
| Given Name | Mary V. |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | Rhode Island |
| Age at First Marriage | 21 |
| 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 …
Daughter, age 37
Providence-County, Rhode Island · implied b. ~1903 — 6 household members
| Surname | McElroy |
| Given Name | Mary H. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Single |
| Birthplace | Rhode Island |
| 1935 Residence (City) | Providence City |
| 1935 Residence (County) | Providence |
| Highest Grade | No 8 |
| 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 Mcelroy across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Mcelroy
Daughter · 1940 · age 37 · b. ~1903 · Rhode Island
★ You are viewing this record
Sibling
John Mcelroy
Sibling · 1940 · age 34
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bartholomew Mcelroy
Sibling · 1940 · age 35
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Providence-County, Rhode Island
Open full size
1940 US Federal Census — Providence-County, Rhode Island
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03774-00197)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Cecelia Regan | 23 | Daughter | Spool Tender | Rhode Island |
| 2 | Edward Regan | 22 | Son | Elevator Op. | Rhode Island |
| 3 | Marie Lawrence | 17 | Daughter | Mother'S Helper | Rhode Island |
| 4 | Madeline Riley | 18 | Lodger | — | Rhode Island |
| 5 | John P Walsh | 59 | Head | Planer Operator | Rhode Island |
| 6 | Alice Walsh | 55 | Wife | Tool Watchman | Rhode Island |
| 7 | Joseph E Walsh | 24 | Son | — | Rhode Island |
| 8 | Catherine A. Walsh | 22 | Daughter | Truck Driver | Rhode Island |
| 9 | Grace M Walsh | 21 | Daughter | Packer | Rhode Island |
| 10 | John P Mcelroy | 69 | Head | Inspector | Rhode Island |
| 11 | Catherine Mcelroy | 69 | Wife | Inspector | Rhode Island |
| 12 | Mary H. Mcelroy THIS PERSON | 37 | Daughter | — | Rhode Island |
| 13 | Bartholomew D Mcelroy | 35 | Son | Inspector | Rhode Island |
| 14 | John T Mcelroy | 34 | Son | Foreman Road | Rhode Island |
| 15 | James E. Mcelroy | 15 | Grandson | Laborer (Road) | Rhode Island |
| 16 | Frank D Thurman | 64 | Head | — | Rhode Island |
| 17 | Julia Dolloff | 68 | Sister | — | Rhode Island |
| 18 | Antonio Gonsalves | 75 | Head | — | Portugal |
| 19 | Mary Gonsalves | 58 | Wife | — | Portugal |
| 20 | Anthony Gonsalves | 32 | Son | — | Rhode Island |
| 21 | Rose Gonsalves | 21 | Daughter | Service Man | Rhode Island |
| 22 | Charles M Lennon | 58 | Head | Dyer | Rhode Island |
| 23 | Mary E. D Lennon | 57 | Wife | Bench Hand | Rhode Island |
| 24 | John Brennan | 58 | Head | — | Rhode Island |
| 25 | Catherine D Brennan | 43 | Wife | Inspector | Rhode Island |
| 26 | Rita Brennan | 14 | Daughter | — | Rhode Island |
| 27 | Marguerite Conahy | 31 | Head | — | Rhode Island |
| 28 | John Conahy | 9 | Son | Office Clerk | Rhode Island |
| 29 | Joseph Conahy | 8 | Son | — | Rhode Island |
| 30 | Virginia Conahy | 5 | Daughter | — | Rhode Island |
| 31 | Frank Stephenson | 58 | Head | Machinist | England |
| 32 | Emma D Stephenson | 58 | Wife | — | Rhode Island |
| 33 | Frances J Stephenson | 24 | Son | Office Clerk | Rhode Island |
| 34 | Hannah Tagal | 70 | Head | — | Russia |
| 35 | Dora D Tagal | 39 | Daughter | Packer | Rhode Island |
| 36 | Michael Kilday | 48 | Head | Shipper | Eire |
| 37 | Anna M. Kilday | 47 | Wife | — | Eire |
| 38 | Leo Kilday | 18 | Son | Usher | Rhode Island |
| 39 | Alice Kilday | 17 | Daughter | — | Rhode Island |
| 40 | Robert Kilday | 14 | Son | — | Rhode Island |
Related Census Records
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)