RD
Robert Day — 1940 US Census Record
Model Tree available1940 United States Federal Census · Norfolk-County, Massachusetts
Our Model Tree links this Robert Day across the 1920, 1930 and 1940 US Censuses in Norfolk-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Albert & Albert — first a son (b.~1919), then head of a 6-person household.
Age 21
b. ~1919
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Norfolk-County, Massachusetts |
| Surname | Day |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Foxborough |
| 1935 Residence (County) | Norfolk |
| Additional Details | |
| Occupation | Assembler |
| Industry | Gauge Works |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 750 |
| Highest Grade | H-4 |
| 1935 Residence | Same house |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Assembler |
| Township / Ward | Foxborough |
| 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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Kenneth Day | Son | — | 14 | ~1926 |
| Albert Day | Head | — | 46 | ~1894 |
| Raymond Day | Daughter | — | 7 | ~1933 |
| Virginia Day | Daughter | — | 10 | ~1930 |
| Robert Day | Son | — | 21 | ~1919 |
| Florence Day | Spouse | — | 43 | ~1897 |
Census Appearances
1920
Norfolk, Massachusetts
Son, age 1
Norfolk, Massachusetts · implied b. ~1919 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Day |
| Given Name | Robert L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Canada |
| Mother Tongue | English |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Norfolk, Massachusetts
Son, age 11
Norfolk, Massachusetts · implied b. ~1919 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Day |
| Given Name | Robert L |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Canada English |
| Occupation | none |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Norfolk-County, Massachusetts
Son, age 21
Norfolk-County, Massachusetts · implied b. ~1919 — 6 household members
| Surname | Day |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Foxborough |
| 1935 Residence (County) | Norfolk |
| Occupation | Assembler |
| Industry | Gauge Works |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 750 |
| Highest Grade | H-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 Robert Day across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Albert Day (~0.92 confidence) and father Albert Day (~0.92 confidence) and mother Florence Day (~0.92 confidence) and mother Florence Day (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Albert Day
b. ~1894
Source father
● Household
· direct · ~0.92
Father
Albert Day
b. ~1884
Source father
● Household
· direct · ~0.92
Mother
Florence Day
b. ~1888
Source mother
● Household
· direct · ~0.92
Mother
Florence Day
b. ~1897
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Day
Son · 1940 · age 21 · b. ~1919 · Massachusetts
★ You are viewing this record
Sibling
Virginia Day
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Raymond Day
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Kenneth Day
Sibling · 1940 · age 14
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 — Norfolk-County, Massachusetts
Open full size
1940 US Federal Census — Norfolk-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01627-00396)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Warren Morse | 35 | Head | Chauffeur | Massachusetts |
| 42 | Mildred Morse | 30 | Wife | — | Massachusetts |
| 43 | Gertrude Morse | 71 | Mother | Bookkeeper | Massachusetts |
| 44 | Richard Morse | 25 | Brother | — | Massachusetts |
| 45 | Marilyn Morse | 4 | Daughter | — | Massachusetts |
| 46 | William Liedtke | 41 | Head | Toolmaker | New York |
| 47 | Edith Liedtke | 39 | Wife | — | Canada-English |
| 48 | Brenda Liedtke | 10 | Son | — | Massachusetts |
| 49 | Harold Comey | 36 | Head | Assembler | Massachusetts |
| 50 | Gertrude Comey | 28 | Wife | — | Massachusetts |
| 51 | John Comey | 3 | Son | — | Massachusetts |
| 52 | James Comey | 0 | Son | — | Massachusetts |
| 53 | John Woodland | 54 | Head | Plumber | Massachusetts |
| 54 | Helen Woodland | 46 | Wife | — | Massachusetts |
| 55 | Doris Woodland | 21 | Daughter | Secretary | Massachusetts |
| 56 | Verna Woodland | 18 | Daughter | Clerk | Massachusetts |
| 57 | Wellard Davies | 36 | Head | Bus Driver | Rhode Island |
| 58 | Gladys Davies | 38 | Wife | — | Massachusetts |
| 59 | Virginia Davies | 15 | Daughter | — | Massachusetts |
| 60 | Nancy Davies | 9 | Daughter | — | Massachusetts |
| 61 | Willard Davies | 6 | Daughter | — | Massachusetts |
| 62 | Esther Mais | 70 | Mother in l | — | Canada-English |
| 63 | Albert Day | 46 | Head | Assembler | Massachusetts |
| 64 | Florence Day | 43 | Wife | — | Canada-English |
| 65 | Robert Day THIS PERSON | 21 | Son | Assembler | Massachusetts |
| 66 | Kenneth Day | 14 | Son | — | Massachusetts |
| 67 | Virginia Day | 10 | Daughter | — | Massachusetts |
| 68 | Raymond Day | 7 | Daughter | — | Massachusetts |
| 69 | Thomas Beggs | 45 | Head | Foreman | New York |
| 70 | Barbara Beggs | 44 | Wife | — | Massachusetts |
| 71 | Thomas Jr. Beggs | 21 | Son | Sales Engineer | Massachusetts |
| 72 | Donald Beggs | 19 | Son | Shipping Clerk | Massachusetts |
| 73 | Earle Peare | 50 | Head | Clerk | New Hampshire |
| 74 | Elsie Peare | 50 | Sister | Clerk | New Hampshire |
| 75 | Thelma Gould | 35 | Niece | — | New Hampshire |
| 76 | Fred Waterhouse | 80 | Head | — | England |
| 77 | Elizabeth Waterhouse | 80 | Wife | — | England |
| 78 | Caroline Waterhouse | 52 | Daughter | Teacher | Massachusetts |
| 79 | Eva Waterhouse | 44 | Daughter | Teacher | Massachusetts |
| 80 | Albert Dunota | 35 | Nephew | Assembler | England |
Pedigree Summary
Robert + 3 siblings
Gen 1 · 4 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)