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Charles Pierce — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Charles Pierce across the 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1928), then head of a 10-person household.
Age 12
b. ~1928
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Pierce |
| Given Name | Charles Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Cambridge |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Highest Grade | No 5 |
| 1935 Residence | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Woburn City |
| Est. Birth Year | ~1928 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Charles | Age | Birth yr |
|---|---|---|---|---|
| Robert Pierce | Son | — | 1 | ~1939 |
| Jeanne Pierce | Daughter | — | 8 | ~1932 |
| Marilyn Pierce | Daughter | — | 4 | ~1936 |
| Charles Pierce | Head | — | 39 | ~1901 |
| Martha Pierce | Daughter | — | ~1940 | |
| Florence Pierce | Daughter | — | 2 | ~1938 |
| Lawrence Pierce | Son | — | 11 | ~1929 |
| Charles Pierce | Son | — | 12 | ~1928 |
| Clyde Pierce | Son | — | 6 | ~1934 |
| Edith Pierce | Spouse | — | 35 | ~1905 |
Census Appearances
1930
Middlesex, Massachusetts
Son, age 2
Middlesex, Massachusetts · implied b. ~1928 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Pierce |
| Given Name | Charles |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Vermont |
| Mother's Birthplace | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Son, age 12
Middlesex-County, Massachusetts · implied b. ~1928 — 10 household members
| Surname | Pierce |
| Given Name | Charles Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Cambridge |
| 1935 Residence (County) | Middlesex |
| Highest Grade | No 5 |
| 1935 Residence | Massachusetts |
| 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 Charles Pierce across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Charles Pierce
Son · 1940 · age 12 · b. ~1928 · Massachusetts
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Sibling
Martha Pierce
Sibling · 1940 · age
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Clyde Pierce
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lawrence Pierce
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jeanne Pierce
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Pierce
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Florence Pierce
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marilyn Pierce
Sibling · 1940 · age 4
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 — Middlesex-County, Massachusetts
Open full size
1940 US Federal Census — Middlesex-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01622-00390)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Doris M Nelson | 2 | Daughter | — | Massachusetts |
| 2 | Oliver R Nelson | 0 | Son | — | Massachusetts |
| 3 | Charles Pierce | 39 | Head | Laborer | Vermont |
| 4 | Edith Pierce | 35 | Wife | — | Massachusetts |
| 5 | Charles Jr Pierce THIS PERSON | 12 | Son | — | Massachusetts |
| 6 | Lawrence Pierce | 11 | Son | — | Massachusetts |
| 7 | Jeanne Pierce | 8 | Daughter | — | Massachusetts |
| 8 | Clyde Pierce | 6 | Son | — | Massachusetts |
| 9 | Marilyn Pierce | 4 | Daughter | — | Massachusetts |
| 10 | Florence Pierce | 2 | Daughter | — | Massachusetts |
| 11 | Robert Pierce | 1 | Son | — | Vermont |
| 12 | Martha Pierce | 0 | Daughter | — | Massachusetts |
| 13 | Joseph Lucas | 39 | Head | Leather Worker | Kentucky |
| 14 | Helen Lucas | 33 | Wife | — | Massachusetts |
| 15 | Joseph Jr Lucas | 14 | Son | — | Massachusetts |
| 16 | Eileen Lucas | 13 | Daughter | — | Massachusetts |
| 17 | Irene Lucas | 11 | Daughter | — | Massachusetts |
| 18 | John Lucas | 8 | Son | — | Massachusetts |
| 19 | James Lucas | 4 | Son | — | Massachusetts |
| 20 | Nick Chikouras | 56 | Head | Tanner | Greece |
| 21 | Daniel Mcelhinney | 77 | Lodger | Laborer | Ireland |
| 22 | Ralph Conte | 48 | Lodger | Laborer | Italy |
| 23 | Arthur Caiado | 44 | Head | Leather Worker | Portugal |
| 24 | Celia Caiado | 43 | Wife | — | Portugal |
| 25 | Mary Caiado | 16 | Daughter | — | Massachusetts |
| 26 | Isabel Caiado | 15 | Daughter | — | Massachusetts |
| 27 | Gilda Caiado | 13 | Daughter | — | Massachusetts |
| 28 | Arthur Jr Caiado | 10 | Son | — | Massachusetts |
| 29 | Manuel Caiado | 9 | Son | — | Massachusetts |
| 30 | Joseph Caiado | 3 | Son | — | Massachusetts |
| 31 | George Hall | 45 | Head | Leather Worker | Ireland |
| 32 | Edith Hall | 44 | Wife | — | Massachusetts |
| 33 | Elizabeth Hall | 8 | Daughter | — | Massachusetts |
| 34 | Edward Lynch | 36 | Lodger | Leather Worker | Massachusetts |
| 35 | Robert Mcfee | 40 | Lodger | Laborer | Ireland |
| 36 | Patrick Mcelhinney | 45 | Head | Tanner | Ireland |
| 37 | Margaret Mcelhinney | 36 | Wife | — | Massachusetts |
| 38 | Mary Mcelhinney | 25 | Daughter | Housework | Massachusetts |
| 39 | Margaret Mcelhinney | 20 | Daughter | Housework | Massachusetts |
| 40 | Helen Mcelhinney | 17 | 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)