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James Jacobs — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Campbell-County, Kentucky
Our Model Tree links this James Jacobs across the 1930 and 1940 US Censuses in Campbell-County, Kentucky (XGBoost, ~Confirmed) — first a son (b.~1920), then head of a 7-person household.
Age 20
b. ~1920
Male
Son
Born: Kentucky
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Campbell-County, Kentucky |
| Surname | Jacobs |
| Given Name | James N. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Newport city |
| 1935 Residence (County) | Campbell |
| Additional Details | |
| Occupation | Clerk |
| Industry | Grocery Co. |
| Class of Worker | PW |
| Hours Worked | 14 |
| Income (1939) | 500 |
| Highest Grade | H-2 |
| 1935 Residence | Same house |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Occupation | Clerk |
| Township / Ward | Newport City |
| Est. Birth Year | ~1920 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| James Jacobs | Son | — | 20 | ~1920 |
| John Jacobs | Son | — | 25 | ~1915 |
| Mary Jacobs | Spouse | — | 47 | ~1893 |
| Florence Jacobs | Daughter | — | 13 | ~1927 |
| Harry Jacobs | Head | — | 53 | ~1887 |
| Marguerite Jacobs | Daughter | — | 18 | ~1922 |
| Thomas Jacobs | Son | — | 11 | ~1929 |
Census Appearances
1930
Campbell, Kentucky
Son, age 10
Campbell, Kentucky · implied b. ~1920 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jacob |
| Given Name | James H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Campbell-County, Kentucky
Son, age 20
Campbell-County, Kentucky · implied b. ~1920 — 7 household members
| Surname | Jacobs |
| Given Name | James N. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Newport city |
| 1935 Residence (County) | Campbell |
| Occupation | Clerk |
| Industry | Grocery Co. |
| Class of Worker | PW |
| Hours Worked | 14 |
| Income (1939) | 500 |
| Highest Grade | H-2 |
| 1935 Residence | Same house |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
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 James Jacobs across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Jacobs
Son · 1940 · age 20 · b. ~1920 · Kentucky
★ You are viewing this record
Sibling
Florence Jacobs
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Jacobs
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marguerite Jacobs
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Jacobs
Sibling · 1940 · age 25
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 — Campbell-County, Kentucky
Open full size
1940 US Federal Census — Campbell-County, Kentucky
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01289-00727)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Caroline Sakelhaus | 6 | Granddaughter | — | Kentucky |
| 2 | William Sakelhaus | 4 | Gr-son | — | Kentucky |
| 3 | Marcella Wells | 25 | Daughter | Cashier | Kentucky |
| 4 | Nicholas Strasburger | 61 | Son-in-law | — | Ohio |
| 5 | Mary E. Duttle | 66 | Head | — | Indiana |
| 6 | John Duttle | 74 | Brother | Salesman | Indiana |
| 7 | Joseph Duttle | 64 | Brother | Agent | Indiana |
| 8 | Mack Aikman | 55 | Head | Operator | Kentucky |
| 9 | Emma Aikman | 60 | Wife | — | Ohio |
| 10 | Alfred A. Haven | 54 | Head | — | Kentucky |
| 11 | Jeanet E. Haven | 54 | Wife | Household Aide | Ohio |
| 12 | Harry F. Macquerto | 59 | Head | Oiler | Kentucky |
| 13 | Mary J. Macquerto | 58 | Wife | — | Kentucky |
| 14 | Harry E. Macquerto | 33 | Son | Attendant | Kentucky |
| 15 | Dorothy Macquerto | 35 | Daughter | Seamstress | Kentucky |
| 16 | Melvin Macquerto | 31 | Son | Driver | Kentucky |
| 17 | Charlotte Macquerto | 27 | Daughter-in-law | — | Kentucky |
| 18 | Louis Macquerto | 25 | Son | Houseman | Kentucky |
| 19 | Donald Macquerto | 20 | Son | Operator | Kentucky |
| 20 | William Macquerto | 15 | Son | — | Kentucky |
| 21 | Robert B. Hasdorf | 45 | Head | Peace Officer | Kentucky |
| 22 | Margaret Hasdorf | 44 | Wife | — | Kentucky |
| 23 | Dorothy Hasdorf | 20 | Daughter | New Worker | Kentucky |
| 24 | Ruth Hasdorf | 18 | Daughter | Stenographer | Kentucky |
| 25 | Betty Hasdorf | 14 | Daughter | — | Kentucky |
| 26 | Harry D. Jacobs | 53 | Head | Chauffeur | Kentucky |
| 27 | Mary E. Jacobs | 47 | Wife | — | Ohio |
| 28 | John C. Jacobs | 25 | Son | Salesman | Kentucky |
| 29 | James N. Jacobs THIS PERSON | 20 | Son | Clerk | Kentucky |
| 30 | Marguerite Jacobs | 18 | Daughter | — | Kentucky |
| 31 | Florence H. Jacobs | 13 | Daughter | — | Kentucky |
| 32 | Thomas J. Jacobs | 11 | Son | — | Kentucky |
| 33 | Donald E. Blanchet | 30 | Head | Upholsterer | Kentucky |
| 34 | Dorothy Blanchet | 25 | Wife | — | Kentucky |
| 35 | Robert E. Blanchet | 3 | Son | — | Kentucky |
| 36 | Florence Bucher | 44 | Head | Assembler | Ohio |
| 37 | Ruth Bucher | 17 | Daughter | New Worker | Kentucky |
| 38 | John Kohler | 41 | Head | Laborer | Kentucky |
| 39 | Ida Kohler | 46 | Sister | — | Kentucky |
| 40 | Joseph Sabellano | 60 | Head | — | Kentucky |
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)