MC
Mary Caldwell — 1940 US Census Record
Model Tree available1940 United States Federal Census · Essex-County, Massachusetts
Our Model Tree links this Mary Caldwell across the 1920, 1930 and 1940 US Censuses in Essex-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Philip & Helen — first a daughter (b.~1914), then head of a 4-person household.
Age 26
b. ~1914
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Essex-County, Massachusetts |
| Surname | Caldwell |
| Given Name | Mary R. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Beverly City |
| 1935 Residence (County) | Essex |
| Additional Details | |
| Occupation | Registered Nurse |
| Industry | Private |
| Class of Worker | OA |
| Hours Worked | 56 |
| Income (1939) | 92 |
| Highest Grade | C-1 |
| 1935 Residence | Same house |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Registered Nurse |
| Township / Ward | Beverly City |
| Est. Birth Year | ~1914 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Ruth Caldwell | Daughter | — | 21 | ~1919 |
| Mary Caldwell | Daughter | — | 26 | ~1914 |
| Phillip Caldwell | Head | — | 49 | ~1891 |
| Helen Caldwell | Spouse | — | 46 | ~1894 |
Census Appearances
1920
Essex, Massachusetts
Daughter, age 6
Essex, Massachusetts · implied b. ~1914 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Caldwell |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Maine |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Essex, Massachusetts
Daughter, age 16
Essex, Massachusetts · implied b. ~1914 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Caldwell |
| Given Name | Mary L |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Maine |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Essex-County, Massachusetts
Daughter, age 26
Essex-County, Massachusetts · implied b. ~1914 — 4 household members
| Surname | Caldwell |
| Given Name | Mary R. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Beverly City |
| 1935 Residence (County) | Essex |
| Occupation | Registered Nurse |
| Industry | Private |
| Class of Worker | OA |
| Hours Worked | 56 |
| Income (1939) | 92 |
| Highest Grade | C-1 |
| 1935 Residence | Same house |
| 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 Mary Caldwell across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Philip Caldwell (~0.92 confidence) and mother Helen Caldwell (~0.92 confidence) and mother Mildred Caldwell (~0.92 confidence) and father Philip Caldwell (~0.92 confidence) and mother Helen Caldwell (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Philip Caldwell
b. ~1891
Source father
● Household
· direct · ~0.92
Mother
Helen Caldwell
b. ~1894
Source mother
● Household
· direct · ~0.92
Mother
Mildred Caldwell
b. ~1894
Source mother
● Household
· direct · ~0.92
Father
Philip Caldwell
b. ~1895
Source father
● Household
· direct · ~0.92
Mother
Helen Caldwell
b. ~1900
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Caldwell
Daughter · 1940 · age 26 · b. ~1914 · Massachusetts
★ You are viewing this record
Sibling
Ruth Caldwell
Sibling · 1940 · age 21
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 — 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-t0627-01578-00404)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Joan Robinson | 13 | Daughter | — | Massachusetts |
| 2 | Whitney B. Robinson | 10 | Son | — | Massachusetts |
| 3 | Carol F. Robinson | 6 | Daughter | — | Massachusetts |
| 4 | Phillip G. Caldwell | 49 | Head | Machinist | Massachusetts |
| 5 | Helen Caldwell | 46 | Wife | — | Maine |
| 6 | Mary R. Caldwell THIS PERSON | 26 | Daughter | Registered Nurse | Massachusetts |
| 7 | Ruth S. Caldwell | 21 | Daughter | Clerk | Massachusetts |
| 8 | Joseph Wood | 32 | Head | Retail Deliverer | Massachusetts |
| 9 | Phyllis Wood | 26 | Wife | — | Massachusetts |
| 10 | Robert M. Wood | 6 | Son | — | Massachusetts |
| 11 | Thomas W. Kulik | 37 | Head | — | Poland |
| 12 | Francis H. Kulik | 58 | Wife | — | Poland |
| 13 | Guy B. Phelan | 59 | Head | Milk Dealer | Massachusetts |
| 14 | Blanche G. Phelan | 58 | Wife | Bookkeeper | New Hampshire |
| 15 | Robert Binkemert | 26 | Head | Clerk | Massachusetts |
| 16 | Virginia Binkemert | 23 | Wife | — | Massachusetts |
| 17 | Harold P. Murphy | 49 | Head | Foreman Machinist | Massachusetts |
| 18 | Anne C. Murphy | 51 | Wife | — | Massachusetts |
| 19 | Virginia M. Murphy | 21 | Daughter | Actuarial Clerk | Massachusetts |
| 20 | Caroline J. Murphy | 17 | Daughter | — | Massachusetts |
| 21 | Janet M. Murphy | 15 | Daughter | — | Massachusetts |
| 22 | Augustus M. Larrivee | 49 | Head | Machinist | Massachusetts |
| 23 | Julia R. Larrivee | 44 | Wife | — | Ireland (South) |
| 24 | Elmer A. Larrivee | 27 | Son | Gardener | Massachusetts |
| 25 | John F. Larrivee | 25 | Son | Millwright | Massachusetts |
| 26 | Misinformed Larrivee | None | — | — | — |
| 27 | Vincent Heath | 32 | Head | Salesman | New Hampshire |
| 28 | Mae Heath | 30 | Wife | — | Massachusetts |
| 29 | Fred Marong | 49 | Head | Machinist | Maine |
| 30 | Louise Marong | 47 | Wife | — | Massachusetts |
| 31 | Maynard A. Burnery | 47 | Head | Machinist | Maine |
| 32 | Richard Burnery | 17 | Son | — | Maine |
| 33 | Nellie S. Burnery | 76 | Mother | — | Maine |
| 34 | Hilma K. Brokvist | 51 | Head | — | Sweden |
| 35 | Cecelia Lynch | 51 | Head | — | England |
| 36 | Leonard Lynch | 21 | Son | Laborer | England |
| 37 | Lillian Lynch | 24 | Daughter | New Worker | Massachusetts |
| 38 | Mary Lynch | 17 | Daughter | — | Massachusetts |
| 39 | Garret Lynch | 16 | Son | — | Massachusetts |
| 40 | Hillard Potter | 47 | Head | Electrician | Massachusetts |
Pedigree Summary
Mary + 1 sibling
Gen 1 · 5 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)