DC
Dorothy Clark — 1940 US Census Record
Model Tree available1940 United States Federal Census · Essex-County, Massachusetts
Our Model Tree links this Dorothy Clark across the 1920, 1930 and 1940 US Censuses in Essex-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Ralph & Ada — first a head (b.~1919), then head of a 3-person household.
Age 21
b. ~1919
Female
Head
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Essex-County, Massachusetts |
| Surname | Clark |
| Given Name | Dorothy |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Lynn City |
| 1935 Residence (County) | Essex |
| Additional Details | |
| Highest Grade | H 4 |
| 1935 Residence | Same Place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Lynn 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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Dorothy | Age | Birth yr |
|---|---|---|---|---|
| Dorothy Clark | Head | — | 21 | ~1919 |
| Robert Clark | Son | — | 1 | ~1939 |
| William Clark | Son | — | 1 | ~1939 |
Census Appearances
1920
Essex, Massachusetts
Daughter, age 1
Essex, Massachusetts · implied b. ~1919 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Dorothy H. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Maine |
| Mother's Birthplace | Maine |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Essex, Massachusetts
Daughter, age 11
Essex, Massachusetts · implied b. ~1919 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Dorothy A. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Maine |
| Mother's Birthplace | Maine |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Essex-County, Massachusetts
Head, age 21
Essex-County, Massachusetts · implied b. ~1919 — 3 household members
| Surname | Clark |
| Given Name | Dorothy |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Lynn City |
| 1935 Residence (County) | Essex |
| 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 Ralph Clark (~0.92 confidence) and mother Ada Clark (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Ralph Clark
b. ~1884
Source father
● Household
· direct · ~0.92
Mother
Ada Clark
b. ~1890
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Dorothy Clark
Head · 1940 · age 21 · b. ~1919 · 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-t0627-01696-00318)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Marylin Granger | 13 | daughter | — | Massachusetts |
| 2 | Lorraine Granger | 12 | daughter | — | Massachusetts |
| 3 | Collin R. Campbell | 47 | Head | Machinist | Massachusetts |
| 4 | Eva D. Campbell | 47 | wife | — | Maine |
| 5 | Ephraim D. Ducay | 57 | Head | Civil Engineer | Canada French |
| 6 | Gertrude A. Ducay | 50 | wife | — | Massachusetts |
| 7 | Marie Ducasse | 30 | daughter | Elementary Teacher | Massachusetts |
| 8 | Patrick Mcguire | 78 | Father-in-law | — | Massachusetts |
| 9 | Thomas J. Mcguire | 52 | Brother-in-law | Janitor | Massachusetts |
| 10 | Frank E. Harrison | 51 | Head | District Manager | Massachusetts |
| 11 | Nellie M. Harrison | 75 | wife | — | Massachusetts |
| 12 | William J. Shanahan | 53 | Head | Court Stenographer | Massachusetts |
| 13 | Katherine Shanahan | 53 | wife | Assistant Librarian | New Hampshire |
| 14 | William J. Shanahan | 25 | son | Assistant Pharmacist | Massachusetts |
| 15 | Helen L. Shanahan | 25 | daughter | Telephone Operator | Massachusetts |
| 16 | Natalie M. Shanahan | 21 | daughter | New Worker | Mass. |
| 17 | Edward F. Shanahan | 17 | son | — | Mass. |
| 18 | Mary T. Shanahan | 13 | daughter | — | Mass. |
| 19 | Elizabeth Shanahan | 13 | daughter | — | Mass. |
| 20 | Jacob Martin | 51 | Head | Installer Fire-Sprinklers | Massachusetts |
| 21 | Jane Ann Martin | 50 | wife | — | New York |
| 22 | Charles Martin | 19 | son | New Worker | Massachusetts |
| 23 | Paul Paton | 34 | Head | Mechanical Engineer | Massachusetts |
| 24 | Edna M. Paton | 32 | wife | — | Massachusetts |
| 25 | Patricia R. Paton | 1 | daughter | — | Massachusetts |
| 26 | Mary Dray | 65 | Head | — | Massachusetts |
| 27 | Charles Pierson | 24 | Head | Manager | New York |
| 28 | Frieda Pierson | 25 | wife | — | Vermont |
| 29 | Linda Pierson | 1 | daughter | — | Massachusetts |
| 30 | Dorothy Clark THIS PERSON | 21 | Head | — | Massachusetts |
| 31 | William Clark | 1 | son | — | Maine |
| 32 | Robert Clark | 1 | son | — | Massachusetts |
| 33 | Marie Shafner | 47 | Head | — | Nova Scotia |
| 34 | Douglas Shafner | 15 | son | Handy-Man | Massachusetts |
| 35 | Catherine Shafner | 20 | daughter-in-law | Model | Massachusetts |
| 36 | Dona Shafner | 20 | daughter | — | Massachusetts |
| 37 | Charles Stone | 39 | Head | Maintenance Dept | Massachusetts |
| 38 | Eulalie Stone | 31 | wife | — | Massachusetts |
| 39 | Judith Ann Stone | 1 | daughter | — | Massachusetts |
| 40 | Walter Wagner | 25 | Head | Shipper | Massachusetts |
Related Census Records
Pedigree Summary
Dorothy
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)