JB
John Black — 1940 US Census Record
Model Tree available1940 United States Federal Census · Sagadahoc-County, Maine
Our Model Tree links this John Black across the 1920, 1930 and 1940 US Censuses in Sagadahoc-County, Maine (XGBoost, ~Confirmed), with identified parents Frances & Beatrice — first a son (b.~1915), then head of a 3-person household.
Age 25
b. ~1915
Male
Son
Born: Maine
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Sagadahoc-County, Maine |
| Surname | Black |
| Given Name | John W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Maine |
| 1935 Residence (City) | Bath City |
| 1935 Residence (County) | Sagadahoc |
| Additional Details | |
| Occupation | Laborer |
| Industry | Highway Construction |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 195 |
| Highest Grade | C 3 |
| 1935 Residence | Same place |
| Birth State | Maine |
| Birth Country | United States |
| Birthplace (normalized) | maine |
| Occupation | Laborer |
| Township / Ward | Bath City |
| 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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Beatrice Black | Head | — | 64 | ~1876 |
| Charles Weeks | Other | — | 59 | ~1881 |
| John Black | Son | — | 25 | ~1915 |
Census Appearances
1920
Sagadahoc, Maine
Other, age 5
Sagadahoc, Maine · implied b. ~1915 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Black |
| Given Name | John W |
| Relationship to Head | Grand Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Maine |
| Father's Birthplace | Maine |
| Mother's Birthplace | Maine |
| Can Read | No |
| Birth State | Maine |
| Birth Country | United States |
| Birthplace (normalized) | maine |
1930
Sagadahoc, Maine
Son, age 15
Sagadahoc, Maine · implied b. ~1915 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Black |
| Given Name | John W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Maine |
| Father's Birthplace | Maine |
| Mother's Birthplace | Maine |
| Can Read/Write | Yes |
| Birth State | Maine |
| Birth Country | United States |
| Birthplace (normalized) | maine |
1940
Sagadahoc-County, Maine
Son, age 25
Sagadahoc-County, Maine · implied b. ~1915 — 3 household members
| Surname | Black |
| Given Name | John W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Maine |
| 1935 Residence (City) | Bath City |
| 1935 Residence (County) | Sagadahoc |
| Occupation | Laborer |
| Industry | Highway Construction |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 195 |
| Highest Grade | C 3 |
| 1935 Residence | Same place |
| Birth State | Maine |
| Birth Country | United States |
| Birthplace (normalized) | maine |
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 Black across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Frances Weeks (~0.92 confidence) and mother Beatrice Black (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Frances Weeks
b. ~1855
Source mother
● Household
· direct · ~0.92
Mother
Beatrice Black
b. ~1876
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Black
Son · 1940 · age 25 · b. ~1915 · Maine
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Sagadahoc-County, Maine
Open full size
1940 US Federal Census — Sagadahoc-County, Maine
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01490-00266)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Betsy B. Potter | 56 | Cousin | Companion | Maine |
| 2 | David P. Mullins | 30 | Head | Safety Engineer | Maine |
| 3 | Dorothy M. Mullins | 30 | Wife | Corp. Stenographer | Maine |
| 4 | Roger D. Stelling | 41 | Head | — | Maine |
| 5 | Emily P. Stelling | 39 | Wife | — | Maine |
| 6 | Roger D. Stelling | 2 | Son | — | Maine |
| 7 | Howard C. Bates | 29 | Head | Assistant Foreman Of Machinery | Maine |
| 8 | Elizabeth M. Bates | 25 | Wife | — | Maine |
| 9 | Susan E. Bates | 3 | Daughter | — | Maine |
| 10 | Beatrice V. Black | 64 | Head | — | Maine |
| 11 | John W. Black THIS PERSON | 25 | Son | Laborer | Maine |
| 12 | Charles P. Weeks | 59 | Brother | — | Maine |
| 13 | William A. Perry | 35 | Head | Store Keeper | Maine |
| 14 | Iona L. Perry | 40 | Wife | — | Maine |
| 15 | Richard C. Perry | 10 | Son | — | Maine |
| 16 | William A. Jr. Perry | 3 | Son | — | Maine |
| 17 | Henry P. Marjula | 31 | Head | City (Metal Worker) | Maine |
| 18 | Gladys S. Marjula | 36 | Wife | — | Maine |
| 19 | Sonya S. Marjula | 1 | Daughter | — | Maine |
| 20 | Harold Dougherty | 22 | Head | Metal Worker Apprentice | Maine |
| 21 | Helen J. Dougherty | 23 | Wife | — | Maine |
| 22 | Jane Dougherty | 1 | Daughter | — | Maine |
| 23 | Everett T. Everett | 59 | Father | Fireman | Maine |
| 24 | Mabel Everett | 54 | Mother | — | Maine |
| 25 | Error Everett | None | — | — | — |
| 26 | Josephine Moore | 27 | Lodger | Registered Nurse | Canada |
| 27 | Linnie D. Cameron | 33 | Lodger | Proprietor | Maine |
| 28 | Jane E. Bragg | 9 | Lodger | — | Maine |
| 29 | Earl Pulsifer | 55 | Lodger | Clerk Of Production Dept. | Mass. |
| 30 | John Axelson | 20 | Lodger | Electrician Apprentice | Mass. |
| 31 | John W. Huskins | 58 | Son-in-law | Marine Mariner | Nova Scotia |
| 32 | Oscar E. Trott | 53 | Lodger | — | Maine |
| 33 | Burleigh J. Thompson | 29 | Son | Seaman | Maine |
| 34 | Clifton I. Jewett | 22 | Son | Marine Fireman | Maine |
| 35 | Annie L. Moody | 59 | Head | Maid | Canada |
| 36 | Blanche A. Pease | 65 | Head | — | Maine |
| 37 | John M. Howe | 59 | Head | Machinist | Maine |
| 38 | Leona D. Howe | 54 | Wife | — | Maine |
| 39 | Muriel Howe | 28 | Daughter | Stenographer | Maine |
| 40 | John F. Howe | 14 | Son | — | Maine |
Pedigree Summary
John
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)