RB
Robert Black — 1940 US Census Record
Model Tree available1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Robert Black across the 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Nathaniel & Agnes — first a son (b.~1915), then head of a 5-person household.
Age 25
b. ~1915
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Black |
| Given Name | Robert A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Burlington Town |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Occupation | Stuffer |
| Industry | Mattress Making |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 560 |
| Highest Grade | H-3 |
| 1935 Residence | Same Place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Stuffer |
| Township / Ward | Burlington Town |
| Est. Birth Year | ~1915 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Dorothy Black | Daughter | — | 24 | ~1916 |
| Iniz Black | Daughter | — | 12 | ~1928 |
| Agnes Black | Head | — | 44 | ~1896 |
| Robert Black | Son | — | 25 | ~1915 |
| Kenneth Black | Son | — | 15 | ~1925 |
Census Appearances
1920
Middlesex, Massachusetts
Son, age 5
Middlesex, Massachusetts · implied b. ~1915 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Black |
| Given Name | Robert A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | New York |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Middlesex, Massachusetts
Son, age 15
Middlesex, Massachusetts · implied b. ~1915 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Black |
| Given Name | Robert T. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Canada-English |
| Occupation | Caddy |
| Industry | Golf Links |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Son, age 25
Middlesex-County, Massachusetts · implied b. ~1915 — 5 household members
| Surname | Black |
| Given Name | Robert A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Burlington Town |
| 1935 Residence (County) | Middlesex |
| Occupation | Stuffer |
| Industry | Mattress Making |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 560 |
| Highest Grade | H-3 |
| 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 Robert Black across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Nathaniel Black (~0.92 confidence) and mother Agnes Black (~0.92 confidence) and father August Black (~0.92 confidence) and mother Agnes Black (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Nathaniel Black
b. ~1878
Source father
● Household
· direct · ~0.92
Mother
Agnes Black
b. ~1895
Source mother
● Household
· direct · ~0.92
Father
August Black
b. ~1895
Source father
● Household
· direct · ~0.92
Mother
Agnes Black
b. ~1896
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Black
Son · 1940 · age 25 · b. ~1915 · Massachusetts
★ You are viewing this record
Sibling
Dorothy Black
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Iniz Black
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Kenneth Black
Sibling · 1940 · age 15
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-t0627-01603-00537)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Charles E. Mcneil | 19 | Brother-in-law | Laborer | Massachusetts |
| 42 | Patrick Donovan | 60 | Head | Tacker | Massachusetts |
| 43 | Margaret A. Donovan | 55 | Wife | — | Irish Free State |
| 44 | Kenneth Donovan | 24 | Son | Tallow-Cooker | Massachusetts |
| 45 | Agnes H. Black | 44 | Head | Stuffer | New York |
| 46 | Robert A. Black THIS PERSON | 25 | Son | Stuffer | Massachusetts |
| 47 | Dorothy H. Black | 24 | Daughter | Cloth Coater | Massachusetts |
| 48 | Kenneth W. Black | 15 | Son | — | Massachusetts |
| 49 | Iniz J. Black | 12 | Daughter | — | Massachusetts |
| 50 | Malcolm Chapman | 44 | Head | Mechanic | Canada-English |
| 51 | Ethel M. Chapman | 36 | Wife | — | Massachusetts |
| 52 | Malcolm E. Jr. Chapman | 18 | Son | Laborer | New Hampshire |
| 53 | Woodford W. Chapman | 13 | Son | — | Massachusetts |
| 54 | Paul A. Chapman | 10 | Son | — | Massachusetts |
| 55 | Ernest C. Powers | 37 | Head | Mechanic | Massachusetts |
| 56 | Rita Powers | 25 | Wife | — | Massachusetts |
| 57 | Roberta Powers | 5 | Daughter | — | Massachusetts |
| 58 | Ida M. Powers | 72 | Mother | — | Massachusetts |
| 59 | Peter F. Ryan | 67 | Head | Painter And Paper Hanger | Massachusetts |
| 60 | Frances F. Ryan | 54 | Wife | — | Canada-English |
| 61 | Robert Ryan | 17 | Son | — | Massachusetts |
| 62 | Richard Ryan | 14 | Son | — | Massachusetts |
| 63 | John Ryan | 12 | Son | — | Massachusetts |
| 64 | Frank S. Parshley | 34 | Head | Garage Sub-Foreman | Massachusetts |
| 65 | Irene M. Parshley | 30 | Wife | — | Massachusetts |
| 66 | Frank M. Parshley | 8 | Son | — | Massachusetts |
| 67 | Patricia Parshley | 4 | Daughter | — | Massachusetts |
| 68 | Edward Mcwaughlin | 39 | Head | Tr. Time Keeper | Massachusetts |
| 69 | Claire Mcwaughlin | 29 | Wife | — | Massachusetts |
| 70 | Ann Mcwaughlin | 6 | Daughter | — | Massachusetts |
| 71 | Leonise Mcwaughlin | 4 | Daughter | — | Massachusetts |
| 72 | Elizabeth Mcwaughlin | 2 | Daughter | — | Massachusetts |
| 73 | Henry R. Price | 45 | Head | Machinist | England |
| 74 | Lilla M. Price | 46 | Wife | — | Canada-English |
| 75 | Robert H. Price | 19 | Son | Watchman | Massachusetts |
| 76 | John Price | 16 | Son | — | Massachusetts |
| 77 | Donald Price | 12 | Son | — | Massachusetts |
| 78 | Barbara P. Pierce | 8 | Statichward | — | Massachusetts |
| 79 | Conrad Lundgren | 34 | Head | Machinist | Massachusetts |
| 80 | Alice Lundgren | 23 | Wife | — | Massachusetts |
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)