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John Mills — 1940 US Census Record
Model Tree available1940 United States Federal Census · Bristol-County, Massachusetts
Our Model Tree links this John Mills across the 1920, 1930 and 1940 US Censuses in Bristol-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Ruth & John — first a son (b.~1901), then head of a 4-person household.
Age 39
b. ~1901
Male
Son
Born: England
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Bristol-County, Massachusetts |
| Surname | Mills |
| Given Name | John J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Single |
| Birthplace | England |
| 1935 Residence (City) | New Bedford City |
| 1935 Residence (County) | Bristol |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | doffer |
| Industry | Cotton Mill |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 884 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | England |
| Birthplace (normalized) | england |
| Occupation | Doffer |
| Township / Ward | New Bedford City |
| Est. Birth Year | ~1901 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Mills | Head | — | 72 | ~1868 |
| John Mills | Son | — | 39 | ~1901 |
| Mark Mills | Son | — | 47 | ~1893 |
| Ruth Mills | Spouse | — | 75 | ~1865 |
Census Appearances
1920
Bristol, Massachusetts
Son, age 18
Bristol, Massachusetts · implied b. ~1902 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mills |
| Given Name | John T |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | England |
| Year of Immigration | 1902 |
| Naturalization Status | Naturalized |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Occupation | doffer |
| Industry | Cotton mill |
| Class of Worker | w |
| Can Read | No |
| Can Write | No |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth Country | England |
| Year of Naturalization | 1910 |
| Birthplace (normalized) | england |
1930
Bristol, Massachusetts
Son, age 29
Bristol, Massachusetts · implied b. ~1901 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mills |
| Given Name | John T |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | England |
| Naturalization Status | Naturalized |
| Year of Immigration | 1900 |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Occupation | Doffer |
| Industry | Cotton Mill |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | England |
| Birthplace (normalized) | england |
1940
Bristol-County, Massachusetts
Son, age 39
Bristol-County, Massachusetts · implied b. ~1901 — 4 household members
| Surname | Mills |
| Given Name | John J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Single |
| Birthplace | England |
| 1935 Residence (City) | New Bedford City |
| 1935 Residence (County) | Bristol |
| Naturalization Status | Naturalized |
| Occupation | doffer |
| Industry | Cotton Mill |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 884 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | England |
| Birthplace (normalized) | england |
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 John Mills across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Ruth Mills (~0.92 confidence) and father John Mills (~0.92 confidence) and father John Mills (~0.92 confidence) and father James Mills (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Ruth Mills
b. ~1865
Source mother
● Household
· direct · ~0.92
Father
John Mills
b. ~1866
Source father
● Household
· direct · ~0.92
Father
John Mills
b. ~1868
Source father
● Household
· direct · ~0.92
Father
James Mills
b. ~1869
Source father
● Household
· direct · ~0.92
This person
Anchor record
John Mills
Son · 1940 · age 39 · b. ~1901 · Massachusetts
★ You are viewing this record
Sibling
Mark Mills
Sibling · 1940 · age 47
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 — Bristol-County, Massachusetts
Open full size
1940 US Federal Census — Bristol-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01701-00369)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Joaquin Cruz | 35 | Head | Fisherman | Portugal |
| 2 | Emily Cruz | 32 | Wife | Cotton Mill | Mass |
| 3 | Beatrice L. Cruz | 8 | Daughter | — | Mass |
| 4 | Henry Kenny | 42 | Head | Wpa | Mass |
| 5 | Eva Kenny | 34 | Wife | — | Mass |
| 6 | Norman Kenny | 12 | Son | — | Mass |
| 7 | Alice Kenny | 9 | Daughter | — | Mass |
| 8 | Eva Kenny | 7 | Daughter | — | Mass |
| 9 | Henry Kenny | 2 | Son | — | — |
| 10 | Frances Kenny | 1 | Son | — | — |
| 11 | Arthur N. Souza | 45 | Head | Millworker | Portugal |
| 12 | Hilda Souza | 40 | Wife | — | Portugal |
| 13 | Edward Richards | 36 | Head | Wpa | Mass |
| 14 | Aurora Richards | 33 | Wife | — | Conn |
| 15 | Edward Richards | 9 | Son | — | Mass |
| 16 | Donald Richards | 5 | Son | — | Mass |
| 17 | Arthur Souza | 33 | Head | Cotton Mill | Mass |
| 18 | Margaret Souza | 29 | Wife | — | Pa |
| 19 | Jerome Souza | 5 | Son | — | Mass |
| 20 | Ursula Souza | 3 | Daughter | — | — |
| 21 | Emily Souza | 48 | Head | — | Portugal |
| 22 | Hilda Souza | 21 | Daughter | — | Mass |
| 23 | Joseph D. Santos | 53 | Head | N.Y.A. | Mass |
| 24 | Eva Santos | 47 | Wife | Laundry | Mass |
| 25 | Anthony Mikas | 45 | Head | Dryer | Poland |
| 26 | Helen Mikas | 35 | Wife | Loom Fixer | Poland |
| 27 | Jane Mikas | 15 | Daughter | Cotton Mill | Mass |
| 28 | Mary Mikas | 13 | Daughter | — | Mass |
| 29 | Henry Runningham | 70 | Head | — | Mass |
| 30 | Catherine Runningham | 69 | Wife | — | Scotland |
| 31 | Leo S. Barabe | 37 | Head | Dry Cleaners | Mass |
| 32 | Mary F. Barabe | 36 | Wife | Cotton Mill | Mass |
| 33 | Jos. M. De Souza | 74 | Father in law | — | Portugal |
| 34 | Olivia Borges | 28 | Lodger | Cotton Mill | Mass |
| 35 | John J. Mills | 72 | Head | — | England |
| 36 | Ruth Mills | 75 | Wife | — | England |
| 37 | Mark Mills | 47 | Son | Floor Man | England |
| 38 | John J. Mills THIS PERSON | 39 | Son | Doffer | England |
| 39 | Isidore Thibeault | 48 | Head | Loom Fixer | Canada |
| 40 | Silvia Thibeault | 46 | Wife | — | Canada |
Pedigree Summary
John + 1 sibling
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)