MP
Mary Pierce — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Providence-County, Rhode Island
Our Model Tree links this Mary Pierce across the 1930 and 1940 US Censuses in Providence-County, Rhode Island (XGBoost, ~Confirmed) — first a daughter (b.~1918), then head of a 11-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 | Pierce |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Rhode Island |
| 1935 Residence (City) | City of Providence |
| 1935 Residence (County) | Providence |
| Additional Details | |
| Occupation | Housework |
| Industry | Private Homes |
| Class of Worker | OA |
| Hours Worked | 10 |
| Income (1939) | 520 |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth State | Rhode Island |
| Birth Country | United States |
| Birthplace (normalized) | rhode island |
| Occupation | Housework |
| Township / Ward | City Of 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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Rebecca Pierce | Daughter | — | 19 | ~1921 |
| Mary Pierce | Daughter | — | 22 | ~1918 |
| Alberta Pierce | Daughter | — | 16 | ~1924 |
| Ora Pierce | Daughter | — | 28 | ~1912 |
| Mabel Pierce | Daughter | — | 16 | ~1924 |
| William Pierce | Head | — | 69 | ~1871 |
| Ruth Pierce | Other | — | 23 | ~1917 |
| David Pierce | Son | — | 11 | ~1929 |
| Alfred Pierce | Son | — | 25 | ~1915 |
| William Pierce | Son | — | 21 | ~1919 |
| Mabel Pierce | Spouse | — | 52 | ~1888 |
Census Appearances
1930
Providence, Rhode …
Daughter, age 12
Providence, Rhode Island · implied b. ~1918 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Pierce |
| Given Name | Margaret M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Rhode Island |
| Father's Birthplace | Canada-English |
| Mother's Birthplace | England |
| 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 — 11 household members
| Surname | Pierce |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Rhode Island |
| 1935 Residence (City) | City of Providence |
| 1935 Residence (County) | Providence |
| Occupation | Housework |
| Industry | Private Homes |
| Class of Worker | OA |
| Hours Worked | 10 |
| Income (1939) | 520 |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| 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 Pierce across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Pierce
Daughter · 1940 · age 22 · b. ~1918 · Rhode Island
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Sibling
Alberta Pierce
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rebecca Pierce
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mabel Pierce
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Pierce
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
David Pierce
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alfred Pierce
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ora Pierce
Sibling · 1940 · age 28
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
25 people indexed on this census page (nara:1940:m-t0627-03777-00855)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | William Pierce | 69 | Head | — | Pennsylvania |
| 42 | Mabel Pierce | 52 | Wife | — | Rhode Island |
| 43 | Ora Pierce | 28 | Daughter | Housework | Rhode Island |
| 44 | Alfred Pierce | 25 | Son | Truck Driver | Rhode Island |
| 45 | Ruth Pierce | 23 | Daughter-in-law | — | Rhode Island |
| 46 | Mary Pierce THIS PERSON | 22 | Daughter | Housework | Rhode Island |
| 47 | William Pierce | 21 | Son | Porter | Rhode Island |
| 48 | Rebecca Pierce | 19 | Daughter | Housework | Rhode Island |
| 49 | Alberta Pierce | 16 | Daughter | Housework | Rhode Island |
| 50 | Mabel Pierce | 16 | Daughter | Housework | Rhode Island |
| 51 | David Pierce | 11 | Son | — | Rhode Island |
| 52 | Esber Krikorian | 44 | Head | — | Turkey |
| 53 | Zabel Krikorian | 42 | Wife | — | Turkey |
| 54 | Yakrod Krikorian | 26 | Son | Druggist | Turkey |
| 55 | Popkin Krikorian | 22 | Son | Wine Worker | Rhode Island |
| 56 | Alice Krikorian | 20 | Daughter | Bookkeeper | Rhode Island |
| 57 | Parhart Krikorian | 14 | Son | — | Rhode Island |
| 58 | Vanoohe Krikorian | 11 | Daughter | — | Rhode Island |
| 59 | John F. Coleman | 68 | Head | Assistant Engineer | Rhode Island |
| 60 | Mary R. Coleman | 60 | Wife | — | Rhode Island |
| 61 | William J. Maher | 71 | Head | Rubber Worker | Massachusetts |
| 62 | Elizabeth G. Maher | 64 | Wife | Quiller | Rhode Island |
| 63 | William J. Maher | 38 | Son | Track Hand | Rhode Island |
| 64 | Anna M. Maher | 36 | Daughter | Assistant Buyer | Rhode Island |
| 65 | Eleanor G. Maher | 33 | Daughter | Telephone Operator | 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)