DC
Dorothy Clark — 1940 US Census Record
Model Tree available1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this Dorothy Clark across the 1920, 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed), with identified parents James & Frank — first a daughter (b.~1910), then head of a 8-person household.
Age 30
b. ~1910
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Clark |
| Given Name | Dorothy V. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Occupation | Phone operator |
| Industry | Tel. Co. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1000 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Phone Operator |
| Township / Ward | Boston |
| Est. Birth Year | ~1910 |
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 Dorothy | Age | Birth yr |
|---|---|---|---|---|
| Mildred Clark | Daughter | — | 28 | ~1912 |
| Dorothy Clark | Daughter | — | 30 | ~1910 |
| Helen Clark | Daughter | — | 24 | ~1916 |
| James Clark | Head | — | 59 | ~1881 |
| James Clark | Son | — | 27 | ~1913 |
| Edward Clark | Son | — | 34 | ~1906 |
| Robert Clark | Son | — | 18 | ~1922 |
| Delia Clark | Spouse | — | 55 | ~1885 |
Census Appearances
1920
Suffolk, Massachusetts
Daughter, age 8
Suffolk, Massachusetts · implied b. ~1912 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Dorothy V. |
| Relationship to Head | Daughter |
| Sex | F |
| 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 |
| Mother Tongue | English |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Suffolk, Massachusetts
Daughter, age 19
Suffolk, Massachusetts · implied b. ~1911 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Dorothy E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Daughter, age 30
Suffolk-County, Massachusetts · implied b. ~1910 — 8 household members
| Surname | Clark |
| Given Name | Dorothy V. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston |
| 1935 Residence (County) | Suffolk |
| Occupation | Phone operator |
| Industry | Tel. Co. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1000 |
| Highest Grade | H 4 |
| 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 Dorothy Clark across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father James Clark (~0.92 confidence) and father Frank Clark (~0.92 confidence) and mother Delia Clark (~0.92 confidence) and mother Alice Clark (~0.92 confidence) and father Edward Clark (~0.92 confidence) and mother Katherine Clark (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Clark
b. ~1881
Source father
● Household
· direct · ~0.92
Father
Frank Clark
b. ~1882
Source father
● Household
· direct · ~0.92
Mother
Delia Clark
b. ~1885
Source mother
● Household
· direct · ~0.92
Mother
Alice Clark
b. ~1886
Source mother
● Household
· direct · ~0.92
Father
Edward Clark
b. ~1890
Source father
● Household
· direct · ~0.92
Mother
Katherine Clark
b. ~1893
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Dorothy Clark
Daughter · 1940 · age 30 · b. ~1910 · Massachusetts
★ You are viewing this record
Sibling
Mildred Clark
Sibling · 1940 · age 28
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Clark
Sibling · 1940 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Clark
Sibling · 1940 · age 34
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Clark
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Clark
Sibling · 1940 · age 24
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 — Suffolk-County, Massachusetts
Open full size
1940 US Federal Census — Suffolk-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01665-00114)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Joseph Reardon | 15 | Son | — | Massachusetts |
| 42 | Leo P. Reardon | 10 | Son | — | Massachusetts |
| 43 | Marie T. Reardon | 12 | Daughter | — | Massachusetts |
| 44 | Herbert A. Davis | 28 | Head | Furniture Finisher | Massachusetts |
| 45 | Lillian T. Davis | 26 | Wife | Printer'S Helper | Massachusetts |
| 46 | Joseph M. Viles | 26 | Head | Laborer | Massachusetts |
| 47 | Mildred F. Viles | 23 | Sister | Stenographer | Massachusetts |
| 48 | Edward M. Viles | 20 | Brother | Oil Peddler | Massachusetts |
| 49 | Maurice J. Kaspar | 40 | Head | Die Setter | New York |
| 50 | Catherine D. Kaspar | 35 | Wife | — | Massachusetts |
| 51 | Francis J. Kaspar | 14 | Son | — | Massachusetts |
| 52 | Anne M. Kaspar | 10 | Daughter | — | Massachusetts |
| 53 | Catherine D. Kaspar | 6 | Daughter | — | Massachusetts |
| 54 | Dennis M. Kaspar | 1 | Son | — | Massachusetts |
| 55 | Annie M. Riordan | 67 | Mother in law | — | Massachusetts |
| 56 | Ursula A. Carolowsky | 50 | Head | Car Cleaner | Lithuania |
| 57 | Mary V. Zaideaky | 31 | Daughter | Storekeeper | Lithuania |
| 58 | Stella A. Carolowsky | 23 | Daughter | Counter Girl | Massachusetts |
| 59 | John F. Carolowsky | 22 | Son | Checker | Massachusetts |
| 60 | Arthur H. White | 35 | Head | Chauffeur | Massachusetts |
| 61 | Mary T. White | 33 | Wife | — | Eire |
| 62 | Arthur H. Jr. White | 1 | Son | — | Mass |
| 63 | James V. Sullivan | 40 | Head | Guard | Massachusetts |
| 64 | Marion T. Sullivan | 37 | Wife | — | Massachusetts |
| 65 | James Sullivan | 9 | Son | — | Massachusetts |
| 66 | James F. Clark | 59 | Head | Watchman | Massachusetts |
| 67 | Delia E. Clark | 55 | Wife | — | Massachusetts |
| 68 | Edward J. Clark | 34 | Son | Reporter | Massachusetts |
| 69 | Dorothy V. Clark THIS PERSON | 30 | Daughter | Phone Operator | Massachusetts |
| 70 | Mildred R. Clark | 28 | Daughter | Phone Operator | Massachusetts |
| 71 | James F. Jr. Clark | 27 | Son | Steel Worker | Massachusetts |
| 72 | Helen R. Clark | 24 | Daughter | Stenographer | Massachusetts |
| 73 | Robert J. Clark | 18 | Son | — | Massachusetts |
| 74 | Richard O. Anderson | 49 | Head | Stereotyper | Rhode Island |
| 75 | Donald S. Anderson | 46 | Wife | Saleswoman | Rhode Island |
| 76 | Joseph P. Mccarthy | 54 | Head | Machinist | Massachusetts |
| 77 | Annie Price | 71 | Sister | — | Massachusetts |
| 78 | Mary E. Price | 65 | Sister | Binder | Massachusetts |
| 79 | Galliano Delimone | 41 | Head | Machinist | Italy |
| 80 | Anna Delimone | 27 | Wife | — | Massachusetts |
Pedigree Summary
Dorothy + 5 siblings
Gen 1 · 6 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)