DA
Dorothy Anderson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Dorothy Anderson across the 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Martin & Hazel — first a daughter (b.~1920), then head of a 10-person household.
Age 20
b. ~1920
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Anderson |
| Given Name | Dorothy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Malden city |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same House |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Malden City |
| Est. Birth Year | ~1920 |
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 Dorothy | Age | Birth yr |
|---|---|---|---|---|
| Dorothy Anderson | Daughter | — | 20 | ~1920 |
| Thelma Anderson | Daughter | — | 18 | ~1922 |
| Ethel Anderson | Daughter | — | 17 | ~1923 |
| Martin Anderson | Head | — | 42 | ~1898 |
| Mary Hosley | Other | — | 59 | ~1881 |
| Alice Anderson | Other | — | 20 | ~1920 |
| Charles Anderson | Other | — | 1 | ~1939 |
| Martin Anderson | Son | — | 16 | ~1924 |
| Charles Anderson | Son | — | 21 | ~1919 |
| Hazel Anderson | Spouse | — | 39 | ~1901 |
Census Appearances
1920
Middlesex, Massachusetts
Other, age
Middlesex, Massachusetts · implied b. ~1920 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Anderson |
| Given Name | Dorothy |
| Relationship to Head | Grand-dau |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | California |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Middlesex, Massachusetts
Daughter, age 10
Middlesex, Massachusetts · implied b. ~1920 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Anderson |
| Given Name | Dorothy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | California |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Daughter, age 20
Middlesex-County, Massachusetts · implied b. ~1920 — 10 household members
| Surname | Anderson |
| Given Name | Dorothy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Malden city |
| 1935 Residence (County) | Middlesex |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 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 Dorothy Anderson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Martin Anderson (~0.92 confidence) and mother Hazel Anderson (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Martin Anderson
b. ~1900
Source father
● Household
· direct · ~0.92
Mother
Hazel Anderson
b. ~1901
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Dorothy Anderson
Daughter · 1940 · age 20 · b. ~1920 · Massachusetts
★ You are viewing this record
Sibling
Charles Anderson
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ethel Anderson
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Martin Anderson
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thelma Anderson
Sibling · 1940 · age 18
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-t0627-01609-00365)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Martin L. Anderson | 42 | Head | Clerk | Massachusetts |
| 42 | Hazel Anderson | 39 | Wife | — | California |
| 43 | Dorothy Anderson THIS PERSON | 20 | Daughter | — | Massachusetts |
| 44 | Thelma Anderson | 18 | Daughter | — | Massachusetts |
| 45 | Ethel Anderson | 17 | Daughter | — | Massachusetts |
| 46 | Martin L. Jr. Anderson | 16 | Son | — | Massachusetts |
| 47 | Charles R. Anderson | 21 | Son | Clerk | Massachusetts |
| 48 | Alice G. Anderson | 20 | Daughter-in-law | — | Massachusetts |
| 49 | Charles B. Anderson | 1 | Grand-son | — | Massachusetts |
| 50 | Mary Hosley | 59 | Sister-in-law | — | California |
| 51 | John F. Lukey | 54 | Head | Salesman | Pennsylvania |
| 52 | Laura B. Lukey | 51 | Wife | — | Massachusetts |
| 53 | Gladys E. Lukey | 28 | Daughter | — | Massachusetts |
| 54 | Phillip E. Lukey | 23 | Son | Salesman | Massachusetts |
| 55 | Russell A. Welch | 27 | Head | Scaleman | Massachusetts |
| 56 | Helen E. Welch | 30 | Wife | Clerical | Massachusetts |
| 57 | Arthur Wilhelmy | 37 | Head | Carpenter | Germany |
| 58 | Ida Wilhelmy | 37 | Wife | — | Germany |
| 59 | Francis E. Carroll | 22 | Head | Mechanic | Massachusetts |
| 60 | Gladys R. Carroll | 19 | Wife | — | Massachusetts |
| 61 | Agnes Larson | 50 | Head | — | Norway |
| 62 | Edgar C. Larson | 23 | Son | Laborer | Massachusetts |
| 63 | Roy Larson | 18 | Son | — | Massachusetts |
| 64 | Anna S. Bjork | 75 | Head | — | Sweden |
| 65 | Albert E. Rowe | 25 | Head | Checker | Massachusetts |
| 66 | Helen R. Rowe | 25 | Wife | — | Massachusetts |
| 67 | Shirley A. Rowe | 4 | Daughter | — | Massachusetts |
| 68 | Carol L. Rowe | 0 | Daughter | — | Massachusetts |
| 69 | Arthur Mclean | 41 | Head | Foreman | Canada-English |
| 70 | Carrie M. Mclean | 39 | Wife | — | Massachusetts |
| 71 | Doris M. Mclean | 11 | Daughter | — | Massachusetts |
| 72 | Barbara G. Mclean | 8 | Daughter | — | Massachusetts |
| 73 | Robert E. Moffitt | 43 | Head | Machinist | Massachusetts |
| 74 | Nellie Moffitt | 41 | Wife | — | Massachusetts |
| 75 | Robert C. Moffitt | 12 | Son | — | Massachusetts |
| 76 | Edward T. Moffitt | 7 | Son | — | Massachusetts |
| 77 | Robert Moffitt | 71 | Father | — | Canada-English |
| 78 | Warren D. Ayer | 52 | Head | Laborer | Massachusetts |
| 79 | Hattie E. Ayer | 57 | Wife | — | Massachusetts |
| 80 | Arnold L. Ayer | 20 | Son | New Worker | Massachusetts |
Related Census Records
Pedigree Summary
Dorothy + 4 siblings
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)