JH
John Hancock — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Berrien-County, Michigan
Our Model Tree links this John Hancock across the 1930 and 1940 US Censuses in Berrien-County, Michigan (XGBoost, ~Confirmed) — first a son (b.~1921), then head of a 11-person household.
Age 19
b. ~1921
Male
Son
Born: California
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Berrien-County, Michigan |
| Surname | Hancock |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Niles |
| 1935 Residence (County) | Berrien |
| Additional Details | |
| Occupation | Helper machinist |
| Industry | Store front factory |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 496 |
| Highest Grade | H-4 |
| 1935 Residence | Same house |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Occupation | Helper Machinist |
| Township / Ward | Niles |
| Est. Birth Year | ~1921 |
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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Sally Hancock | Spouse | — | 48 | ~1892 |
| Howard Hancock | Son | — | 9 | ~1931 |
| Clarence Hancock | Son | — | 1 | ~1939 |
| John Hancock | Head | — | 52 | ~1888 |
| Robert Hancock | Son | — | 14 | ~1926 |
| John Hancock | Son | — | 19 | ~1921 |
| Anna Hancock | Daughter | — | 16 | ~1924 |
| Evelyn Hancock | Daughter | — | 4 | ~1936 |
| Henry Hancock | Son | — | 21 | ~1919 |
| Jean Hancock | Daughter | — | 6 | ~1934 |
| Eileen Hancock | Daughter | — | 11 | ~1929 |
Census Appearances
1930
Berrien, Michigan
Son, age 9
Berrien, Michigan · implied b. ~1921 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hancock |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
Berrien-County, Michigan
Son, age 19
Berrien-County, Michigan · implied b. ~1921 — 11 household members
| Surname | Hancock |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Niles |
| 1935 Residence (County) | Berrien |
| Occupation | Helper machinist |
| Industry | Store front factory |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 496 |
| Highest Grade | H-4 |
| 1935 Residence | Same house |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
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 Hancock across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Hancock
Son · 1940 · age 19 · b. ~1921 · Michigan
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Sibling
Henry Hancock
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jean Hancock
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Hancock
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Clarence Hancock
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anna Hancock
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Evelyn Hancock
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Howard Hancock
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eileen Hancock
Sibling · 1940 · age 11
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 — Berrien-County, Michigan
Open full size
1940 US Federal Census — Berrien-County, Michigan
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01732-00529)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Victor Leggett | 31 | Head | Truck Driver | Michigan |
| 2 | Anna Leggett | 24 | Wife | — | Michigan |
| 3 | Bobby Leggett | 5 | Son | — | Michigan |
| 4 | Betty Lou Leggett | 2 | Daughter | — | Michigan |
| 5 | Clifford Thomas | 36 | Head | Proprietor | Indiana |
| 6 | Vannie Thomas | 32 | Wife | — | Indiana |
| 7 | Clifford Jr. Thomas | 14 | Son | — | Indiana |
| 8 | Bobbie Thomas | 13 | Son | — | Indiana |
| 9 | Jennie Thomas | 12 | Daughter | — | Indiana |
| 10 | Patricia Thomas | 4 | Daughter | — | Michigan |
| 11 | Rex Manley | 21 | Brother-in-law | Digger | Indiana |
| 12 | John Thomas | 30 | Head | Sales Clerk | Indiana |
| 13 | Eloise Thomas | 28 | Wife | — | Michigan |
| 14 | Mary Louise Thomas | 8 | Daughter | — | Michigan |
| 15 | Joan Marie Thomas | 6 | Daughter | — | Michigan |
| 16 | Robert Blake | 71 | Head | — | Indiana |
| 17 | Frances Blake | 67 | Wife | — | Canada-English |
| 18 | David Kettles | 51 | Head | Freight Conductor | Scotland |
| 19 | Vera Kettles | 53 | Wife | — | Michigan |
| 20 | Margaret Kettles | 23 | Daughter | Shipping Clerk | Indiana |
| 21 | Ross Kettles | 21 | Son | Brakeman | Indiana |
| 22 | Jeanne Kettles | 20 | Daughter | Maid | Indiana |
| 23 | Isabelle Kettles | 18 | Daughter | — | Indiana |
| 24 | Maude E. Kay | 82 | Head | — | Ireland |
| 25 | Mary Mellon | 22 | Daughter | Private Secretary | Michigan |
| 26 | John Hancock | 52 | Head | Ready Machinist | South Carolina |
| 27 | Sally Hancock | 48 | Wife | — | South Carolina |
| 28 | Henry Hancock | 21 | Son | Assembler | Massachusetts |
| 29 | John Hancock THIS PERSON | 19 | Son | Helper Machinist | California |
| 30 | Anna Mae Hancock | 16 | Daughter | — | California |
| 31 | Robert Hancock | 14 | Son | — | Michigan |
| 32 | Eileen Hancock | 11 | Daughter | — | Michigan |
| 33 | Howard Hancock | 9 | Son | — | Michigan |
| 34 | Jean Hancock | 6 | Daughter | — | Michigan |
| 35 | Evelyn Hancock | 4 | Daughter | — | Michigan |
| 36 | Clarence Hancock | 1 | Son | — | Michigan |
| 37 | Russell Krisher | 37 | Head | Wpa Laborer | Indiana |
| 38 | Bessie Krisher | 36 | Wife | — | Indiana |
| 39 | William Krisher | 17 | Son | News Boy | Indiana |
| 40 | Richard Krisher | 14 | Son | Delivery Boy | Indiana |
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)