MD
Marie Davis — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this Marie Davis across the 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a daughter (b.~1925), then head of a 8-person household.
Age 15
b. ~1925
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Davis |
| Given Name | Marie F |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Industry | 0 |
| Highest Grade | H 2 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Boston |
| Est. Birth Year | ~1925 |
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 Marie | Age | Birth yr |
|---|---|---|---|---|
| Marie Davis | Daughter | — | 15 | ~1925 |
| Lorraine Davis | Daughter | — | 2 | ~1938 |
| Frank Davis | Head | — | 49 | ~1891 |
| William Davis | Son | — | 9 | ~1931 |
| Richard Davis | Son | — | 5 | ~1935 |
| Joan Davis | Son | — | 13 | ~1927 |
| Charles Davis | Son | — | 2 | ~1938 |
| Margaret Davis | Spouse | — | 42 | ~1898 |
Census Appearances
1930
Suffolk, Massachusetts
Daughter, age 5
Suffolk, Massachusetts · implied b. ~1925 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Marie F. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Daughter, age 15
Suffolk-County, Massachusetts · implied b. ~1925 — 8 household members
| Surname | Davis |
| Given Name | Marie F |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston |
| 1935 Residence (County) | Suffolk |
| Industry | 0 |
| Highest Grade | H 2 |
| 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 Marie Davis across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Marie Davis
Daughter · 1940 · age 15 · b. ~1925 · Massachusetts
★ You are viewing this record
Sibling
Charles Davis
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Davis
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joan Davis
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Davis
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lorraine Davis
Sibling · 1940 · age 2
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
39 people indexed on this census page (nara:1940:m-t0627-01670-00284)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Morton C Crowell | 21 | son | Laborer | Canada-English |
| 2 | Jennie Crowell | 20 | daughter | Waitress | Canada-English |
| 3 | Harold Crowell | 18 | son | New Worker | Massachusetts |
| 4 | Margaret Crowell | 16 | daughter | — | Massachusetts |
| 5 | Gordon Jr. Crowell | 14 | son | — | Massachusetts |
| 6 | Lila Crowell | 13 | daughter | — | Massachusetts |
| 7 | Mary Crowell | 8 | daughter | — | Massachusetts |
| 8 | Frank L. Davis | 49 | head | Machinist | Massachusetts |
| 9 | Margaret L. Davis | 42 | wife | — | Massachusetts |
| 10 | Marie F Davis THIS PERSON | 15 | daughter | — | Massachusetts |
| 11 | Joan A. Davis | 13 | son | — | Massachusetts |
| 12 | William V. Davis | 9 | son | — | Massachusetts |
| 13 | Lorraine C. Davis | 2 | daughter | — | Massachusetts |
| 14 | Richard E. Davis | 5 | son | — | Massachusetts |
| 15 | Charles L. Davis | 2 | son | — | Massachusetts |
| 16 | Jacob Polonsky | 45 | head | Carpenter | Poland |
| 17 | Ida Polonsky | 45 | wife | — | Poland |
| 18 | Martha Polonsky | 19 | daughter | — | Poland |
| 19 | Ethel Polonsky | 17 | daughter | — | Poland |
| 20 | Samuel Polonsky | 14 | son | — | Poland |
| 21 | Abraham Polonsky | 12 | son | — | Poland |
| 22 | Joseph Polonsky | 9 | son | — | Massachusetts |
| 23 | William Sampson | 58 | head | Chauffeur | Canada-English |
| 24 | Jessie Sampson | 55 | wife | Housework | Canada-English |
| 25 | John Sampson | 24 | son | Chauffeur | Massachusetts |
| 26 | William Sampson | 22 | son | Laborer | Massachusetts |
| 27 | Robert Sampson | 21 | son | Laborer | Massachusetts |
| 29 | Violet Sampson | 18 | daughter | New Worker | Massachusetts |
| 30 | Anna K. Sampson | 16 | daughter | — | Massachusetts |
| 31 | Lillian Sampson | 16 | daughter | — | Massachusetts |
| 32 | George Sampson | 14 | son | — | Massachusetts |
| 33 | Phoebe Mc Donald | 57 | head | — | New Brunswick |
| 34 | Helen Mc Donald | 23 | daughter | Waitress | Massachusetts |
| 35 | Thomas Mc Donald | 22 | son | Mimeograph Operator | Massachusetts |
| 36 | William Mc Donald | 20 | son | Car Polisher | Massachusetts |
| 37 | Walter W. Dixon | 36 | head | Chauffeur | New York |
| 38 | Estella M. Dixon | 36 | wife | — | Massachusetts |
| 39 | Barbara A Dixon | 8 | daughter | — | Massachusetts |
| 40 | Walter W. Jr Dixon | 5 | son | — | Massachusetts |
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)