WC
William Caldwell — 1940 US Census Record
Model Tree available1940 United States Federal Census · Essex-County, Massachusetts
Our Model Tree links this William Caldwell across the 1920, 1930 and 1940 US Censuses in Essex-County, Massachusetts (XGBoost, ~Confirmed), with identified parents William & Lena — first a head (b.~1912), then head of a 3-person household.
Age 28
b. ~1912
Male
Head
Born: Massachusetts
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Essex-County, Massachusetts |
| Surname | Caldwell |
| Given Name | William J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Hamilton |
| 1935 Residence (County) | Essex |
| Additional Details | |
| Occupation | Clerk |
| Industry | Machinery Plant |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 266 |
| Highest Grade | No 8 |
| 1935 Residence | Mass |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Clerk |
| Township / Ward | Beverly City |
| Est. Birth Year | ~1912 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| William Caldwell | Head | — | 28 | ~1912 |
| Richard Caldwell | Son | — | 2 | ~1938 |
| Helen Caldwell | Spouse | — | 26 | ~1914 |
Census Appearances
1920
Essex, Massachusetts
Son, age 8
Essex, Massachusetts · implied b. ~1912 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Caldwell |
| Given Name | William A. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Essex, Massachusetts
Son, age 18
Essex, Massachusetts · implied b. ~1912 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Caldwell |
| Given Name | William J. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | Clerk |
| Industry | Machinery |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Essex-County, Massachusetts
Head, age 28
Essex-County, Massachusetts · implied b. ~1912 — 3 household members
| Surname | Caldwell |
| Given Name | William J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Hamilton |
| 1935 Residence (County) | Essex |
| Occupation | Clerk |
| Industry | Machinery Plant |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 266 |
| Highest Grade | No 8 |
| 1935 Residence | Mass |
| 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 Caldwell across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father William Caldwell (~0.92 confidence) and mother Lena Caldwell (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Caldwell
b. ~1887
Source father
● Household
· direct · ~0.92
Mother
Lena Caldwell
b. ~1895
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Caldwell
Head · 1940 · age 28 · b. ~1912 · Massachusetts
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Essex-County, Massachusetts
Open full size
1940 US Federal Census — Essex-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01578-00095)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Charles Charles | 21 | Son | — | Canada-English |
| 2 | Lorana Charles | 20 | Daughter | — | Massachusetts |
| 3 | Evans Charles | 16 | Son | — | Massachusetts |
| 4 | Loyce Charles | 14 | Daughter | — | Massachusetts |
| 5 | Helda A. Hveem | 33 | Housekeeper | Housekeeper | Massachusetts |
| 6 | Ralph Ryder | 34 | Head | — | Massachusetts |
| 7 | Rosella Ryder | 25 | Wife | — | Massachusetts |
| 8 | Richard Ryder | 2 | Son | — | Massachusetts |
| 9 | Minnie Hallahan | 79 | Head | — | Maine |
| 10 | J. Brault | 50 | Head | — | Massachusetts |
| 11 | Thomas Churchyard | 62 | Head | Surface Drainage | England |
| 12 | Ellen Churchyard | 56 | Wife | — | England |
| 13 | Clarence J. Morse | 53 | Head | Clerk | Massachusetts |
| 14 | Kathryn M. Morse | 56 | Wife | — | Massachusetts |
| 15 | Robert Morse | 23 | Son | Clerk | Massachusetts |
| 16 | Ralph Wright | 42 | Head | — | Massachusetts |
| 17 | Mabel Wright | 35 | Wife | X-Ray Technician | Ireland |
| 18 | Nancy Wright | 6 | Daughter | — | Massachusetts |
| 19 | Ralph R. Murphy | 45 | Head | Machinist | Canada-English |
| 20 | Aida Murphy | 44 | Wife | — | England |
| 21 | Donald Murphy | 16 | Son | — | Massachusetts |
| 22 | Louise Murphy | 11 | Daughter | — | Massachusetts |
| 23 | Mary Whitcomb | 63 | Head | — | Massachusetts |
| 24 | Ellen Whitcomb | 39 | Daughter | Saleslady | New Hampshire |
| 25 | Horace Stevens | 37 | Son-in-law | Druggist | Canada-English |
| 26 | Jennie Stevens | 30 | Daughter | Bookkeeper | Massachusetts |
| 27 | Earl Lyman | 17 | Boarder | Auto Mechanic | Massachusetts |
| 28 | Frank A. Whittemore | 71 | Husband | — | New Hampshire |
| 29 | William J. Caldwell THIS PERSON | 28 | Head | Clerk | Massachusetts |
| 30 | Helen Caldwell | 26 | Wife | — | Massachusetts |
| 31 | Richard Caldwell | 2 | Son | — | Massachusetts |
| 32 | Horace J. Clamondon | 57 | Head | Salesman | Massachusetts |
| 33 | Clara Clamondon | 52 | Wife | — | Canada-French |
| 34 | Frank Clamondon | 25 | Son | Stock Clerk | Canada-French |
| 35 | Charles W. Bragdon | 64 | Head | Fireman | Massachusetts |
| 36 | Annie L. Bragdon | 67 | Wife | — | Maine |
| 37 | Deborah Bragdon | 36 | Daughter | Stenographer | Massachusetts |
| 38 | Vernon W. Bragdon | 32 | Son | Musician | Massachusetts |
| 39 | Yolanda Digianora | 38 | Head | — | Argentina |
| 40 | Josephine Digianora | 73 | Mother-in-law | — | Italy |
Pedigree Summary
William
Gen 1 · 2 parents
~0.92
Max depth 4 (1900–1950 window)
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)