WP
William Pierce — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Plymouth-County, Massachusetts
Our Model Tree links this William Pierce across the 1930 and 1940 US Censuses in Plymouth-County, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1919), then head of a 8-person household.
Age 21
b. ~1919
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Plymouth-County, Massachusetts |
| Surname | Pierce |
| Given Name | William L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Brockton City |
| 1935 Residence (County) | Plymouth |
| Additional Details | |
| Occupation | Tack Feeder |
| Industry | Tack Mfg. Co. |
| Class of Worker | PW |
| Hours Worked | 32 |
| Income (1939) | 400 |
| Highest Grade | No 8 |
| 1935 Residence | Same Place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Tack Feeder |
| Township / Ward | Brockton City |
| Est. Birth Year | ~1919 |
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 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Pauline Pierce | Daughter | — | 14 | ~1926 |
| Geraldine Pierce | Daughter | — | 9 | ~1931 |
| Carroll Pierce | Head | — | 47 | ~1893 |
| William Pierce | Son | — | 21 | ~1919 |
| Hampton Pierce | Son | — | 16 | ~1924 |
| Wilfred Pierce | Son | — | 19 | ~1921 |
| Charles Pierce | Son | — | 22 | ~1918 |
| Blanche Pierce | Spouse | — | 45 | ~1895 |
Census Appearances
1930
Plymouth, Massachusetts
Son, age 11
Plymouth, Massachusetts · implied b. ~1919 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Pierce |
| Given Name | William L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Plymouth-County, Massachusetts
Son, age 21
Plymouth-County, Massachusetts · implied b. ~1919 — 8 household members
| Surname | Pierce |
| Given Name | William L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Brockton City |
| 1935 Residence (County) | Plymouth |
| Occupation | Tack Feeder |
| Industry | Tack Mfg. Co. |
| Class of Worker | PW |
| Hours Worked | 32 |
| Income (1939) | 400 |
| Highest Grade | No 8 |
| 1935 Residence | Same Place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
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 William Pierce across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Pierce
Son · 1940 · age 21 · b. ~1919 · Massachusetts
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Sibling
Hampton Pierce
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Wilfred Pierce
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Pauline Pierce
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Geraldine Pierce
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Pierce
Sibling · 1940 · age 22
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 — Plymouth-County, Massachusetts
Open full size
1940 US Federal Census — Plymouth-County, Massachusetts
Page Contents
29 people indexed on this census page (nara:1940:m-t0627-01636-00302)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Mildred Thibeault | 21 | Daughter | Nurse | Massachusetts |
| 42 | Thomas Thibeault | 12 | Son | — | Massachusetts |
| 43 | Carroll R. Pierce | 47 | Head | Truck Inspector | Massachusetts |
| 44 | Blanche G. Pierce | 45 | Wife | — | Massachusetts |
| 45 | Charles H. Pierce | 22 | Son | Truck Driver | Massachusetts |
| 46 | William L. Pierce THIS PERSON | 21 | Son | Tack Feeder | Massachusetts |
| 47 | Wilfred Pierce | 19 | Son | New Worker | Massachusetts |
| 48 | Hampton L. Pierce | 16 | Son | New Worker | Massachusetts |
| 49 | Pauline L. Pierce | 14 | Daughter | — | Massachusetts |
| 50 | Geraldine R. Pierce | 9 | Daughter | — | Massachusetts |
| 51 | James Toskas | 55 | Head | Sole Maker | Italy |
| 52 | Rose Toskas | 61 | Wife | — | Italy |
| 53 | Frank Toskas | 21 | Son | Fireman | Massachusetts |
| 54 | Mary Toskas | 19 | Daughter | — | Massachusetts |
| 55 | Rose Toskas | 17 | Daughter | — | Massachusetts |
| 56 | Joseph Hearns | 54 | Head | Plumber | Massachusetts |
| 57 | Rose Healy | 61 | Head | — | Ireland (Eire) |
| 58 | Daniel Lashman | 54 | Brother | Foreman | Ireland (Eire) |
| 59 | Michael J. Flynn | 57 | Head | Salesman | Massachusetts |
| 60 | Katherine Flynn | 52 | Wife | — | Ireland (Eire) |
| 61 | John G. Flynn | 27 | Son | Labour | Massachusetts |
| 62 | Monica G. Flynn | 25 | Daughter-in-law | — | Maine |
| 63 | John G. Flynn | 1 | Grandson | — | Massachusetts |
| 64 | Edward D. | 22 | Son | Orderly | Massachusetts |
| 65 | Marion E. | 25 | Daughter | Waitress | Massachusetts |
| 66 | Benjamin Albanese | 67 | Head | — | Italy |
| 67 | Mary A. Albanese | 61 | Wife | — | Italy |
| 68 | Samuel Albanese | 25 | Son | Salesman | Italy |
| 69 | Phyllis Albanese | 23 | Daughter | — | Massachusetts |
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)