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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.~1918), then head of a 6-person household.
Age 22
b. ~1918
Female
Daughter
Born: Rhode Island
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Providence-County, Rhode Island |
| Surname | McElroy |
| Given Name | Mary R |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Rhode Island |
| 1935 Residence (City) | Providence |
| 1935 Residence (County) | Prov. |
| Additional Details | |
| Occupation | price clerk |
| Industry | drug com. |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1050 |
| Highest Grade | H 4 |
| 1935 Residence | Same Place |
| Birth State | Rhode Island |
| Birth Country | United States |
| Birthplace (normalized) | rhode island |
| Occupation | Price Clerk |
| Township / Ward | Providence |
| Est. Birth Year | ~1918 |
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 |
|---|---|---|---|---|
| Mary Mcelroy | Spouse | — | 60 | ~1880 |
| John Mcelroy | Head | — | 65 | ~1875 |
| Mary Mcelroy | Daughter | — | 22 | ~1918 |
| William Mcelroy | Son | — | 25 | ~1915 |
| Eleanor Mcelroy | Daughter | — | 27 | ~1913 |
| Dorothy Mcelroy | Daughter | — | 29 | ~1911 |
Census Appearances
1930
Providence, Rhode …
Daughter, age 12
Providence, Rhode Island · implied b. ~1918 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McElroy |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Rhode Island |
| Father's Birthplace | Ireland N. |
| Mother's Birthplace | Rhode Island |
| Occupation | Sales girl |
| Industry | Candy store |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Rhode Island |
| Birth Country | United States |
| Birthplace (normalized) | rhode island |
1940
Providence-County, Rhode …
Daughter, age 22
Providence-County, Rhode Island · implied b. ~1918 — 6 household members
| Surname | McElroy |
| Given Name | Mary R |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Rhode Island |
| 1935 Residence (City) | Providence |
| 1935 Residence (County) | Prov. |
| Occupation | price clerk |
| Industry | drug com. |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1050 |
| Highest Grade | H 4 |
| 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 22 · b. ~1918 · Rhode Island
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Sibling
Eleanor Mcelroy
Sibling · 1940 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Mcelroy
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Mcelroy
Sibling · 1940 · age 29
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-t0627-03774-00344)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Mary A Deery | 55 | Head | — | Rhode Island |
| 42 | Edward A Deery | 35 | Son | Counter Clerk | Rhode Island |
| 43 | Helen E Deery | 30 | Daughter | Bookkeeper | Rhode Island |
| 44 | Lawrence P Deery | 24 | Son | — | Rhode Island |
| 45 | Joseph P Deery | 23 | Son | — | Rhode Island |
| 46 | Eugene V Deery | 22 | Son | Salesman | Rhode Island |
| 47 | Edward H Kavanagh | 27 | Head | Linotype Apprentice | Rhode Island |
| 48 | Mary J Kavanagh | 26 | Wife | — | Massachusetts |
| 49 | John Mcelroy | 65 | Head | Laborer | Rhode Island |
| 50 | Mary G Mcelroy | 60 | Wife | — | Massachusetts |
| 51 | Dorothy M Mcelroy | 29 | Daughter | School Teacher | Rhode Island |
| 52 | Eleanor M Mcelroy | 27 | Daughter | Clerical Work | Rhode Island |
| 53 | William A Mcelroy | 25 | Son | Engineer | Rhode Island |
| 54 | Mary R Mcelroy THIS PERSON | 22 | Daughter | Price Clerk | Rhode Island |
| 55 | Max Shine | 32 | Head | Insurance Agent | Massachusetts |
| 56 | Pearl Shine | 32 | Wife | — | New York |
| 57 | Kenneth E Shine | 5 | Son | — | Massachusetts |
| 58 | Allan M Shine | 3 | Son | — | Massachusetts |
| 59 | Richard S Shine | 0 | Son | — | Rhode Island |
| 60 | Perley J Stevens | 58 | Head | Operator | Canada |
| 61 | Iline R Stevens | 45 | Wife | — | Rhode Island |
| 62 | Howard S Stevens | 27 | Son | Stamper | Rhode Island |
| 63 | James Barlow | 32 | Son-in-law | Laborer | Rhode Island |
| 64 | Elizabeth Barlow | 27 | Daughter | — | Rhode Island |
| 65 | Caroline E Barlow | 6 | Grandchild | — | Rhode Island |
| 66 | James W Barlow | 3 | Grandchild | — | Rhode Island |
| 67 | Arthur Whitehead | 61 | Head | Interior Decorator | England |
| 68 | Adia L Whitehead | 61 | Wife | — | Massachusetts |
| 69 | Elmer W Brown | 48 | Head | Salesman | Rhode Island |
| 70 | Evelyn M Brown | 39 | Wife | — | Rhode Island |
| 71 | Esther Strimberg | 48 | Head | Stenographer | Rhode Island |
| 72 | Hulda Strimberg | 85 | Mother | — | Sweden |
| 73 | Esther C Pierce | 22 | Niece | — | Rhode Island |
| 74 | Allen Gove | 27 | Head | Instructor | Rhode Island |
| 75 | Emily A Gove | 25 | Wife | Nurse | Rhode Island |
| 76 | Patrick P Durkin | 70 | Head | Engineer | Irish Free State |
| 77 | Mary A Durkin | 68 | Wife | — | Irish Free State |
| 78 | Mary A Durkin | 38 | Daughter | Clerical Work | Rhode Island |
| 79 | Walter R Durkin | 28 | Son | — | Rhode Island |
| 80 | Edward S Pemberton | 60 | Head | Baker | England |
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)