CJ
Charles Jacobs — 1940 US Census Record
Model Tree available1940 United States Federal Census · Franklin-County, Massachusetts
Our Model Tree links this Charles Jacobs across the 1920, 1930 and 1940 US Censuses in Franklin-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Fred & Fred — first a son (b.~1914), then head of a 3-person household.
Age 26
b. ~1914
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Franklin-County, Massachusetts |
| Surname | Jacobs |
| Given Name | Charles |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Greenfield |
| 1935 Residence (County) | Franklin |
| Additional Details | |
| Occupation | Gas station manager |
| Industry | Private |
| Class of Worker | OA |
| Hours Worked | 45 |
| Highest Grade | H-2 |
| 1935 Residence | Same house |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Gas Station Manager |
| Township / Ward | Greenfield |
| Est. Birth Year | ~1914 |
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 Charles | Age | Birth yr |
|---|---|---|---|---|
| Fred Jacobs | Head | — | 52 | ~1888 |
| Charles Jacobs | Son | — | 26 | ~1914 |
| Grace Jacobs | Spouse | — | 47 | ~1893 |
Census Appearances
1920
Franklin, Massachusetts
Son, age 6
Franklin, Massachusetts · implied b. ~1914 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jacobs |
| Given Name | Charles |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Franklin, Massachusetts
Son, age 16
Franklin, Massachusetts · implied b. ~1914 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jacobs |
| Given Name | Charles F |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Franklin-County, Massachusetts
Son, age 26
Franklin-County, Massachusetts · implied b. ~1914 — 3 household members
| Surname | Jacobs |
| Given Name | Charles |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Greenfield |
| 1935 Residence (County) | Franklin |
| Occupation | Gas station manager |
| Industry | Private |
| Class of Worker | OA |
| Hours Worked | 45 |
| Highest Grade | H-2 |
| 1935 Residence | Same house |
| 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 Charles Jacobs across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Fred Jacobs (~0.92 confidence) and father Fred Jacobs (~0.92 confidence) and mother Grace Jacobs (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Fred Jacobs
b. ~1883
Source father
● Household
· direct · ~0.92
Father
Fred Jacobs
b. ~1888
Source father
● Household
· direct · ~0.92
Mother
Grace Jacobs
b. ~1893
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Charles Jacobs
Son · 1940 · age 26 · b. ~1914 · Massachusetts
★ 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 — Franklin-County, Massachusetts
Open full size
1940 US Federal Census — Franklin-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01591-00440)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | William Mcleod | 24 | Head | Plumber Asst. | Massachusetts |
| 2 | Marion Mcleod | 21 | Wife | Waitress | Massachusetts |
| 3 | Marion C. Peffer | 46 | Head | — | Connecticut |
| 4 | Marjorie J. Peffer | 23 | daughter | Office Clerk | Massachusetts |
| 5 | Robert W. Peffer | 20 | son | Clerk & Apprentice | Massachusetts |
| 6 | Hope Peffer | 16 | daughter | — | Massachusetts |
| 7 | James A. Hinckley | 6 | great nephew | — | Massachusetts |
| 8 | Joseph W. Froppier | 51 | Head | Barber | Canada-French |
| 9 | Tena Froppier | 45 | Wife | — | Canada-French |
| 10 | Rita Froppier | 17 | daughter | — | Massachusetts |
| 11 | Geraldine Froppier | 14 | daughter | — | Massachusetts |
| 12 | Amos J. La Plante | 45 | Head | Car Inspector | Massachusetts |
| 13 | Dora E. La Plante | 43 | Wife | — | Massachusetts |
| 14 | Irwin B. Hale | 64 | Head | Keeper Of Jail & Master Alms House | Massachusetts |
| 15 | Bessie M. Hale | 66 | Wife | House-Matron | Rhode Island |
| 16 | Nellie L. Hockley | 58 | Lodger | Housework | Michigan |
| 17 | John H. Jangro | 39 | Head | Engraver | Massachusetts |
| 18 | Margaret E. Jangro | 33 | Wife | — | Massachusetts |
| 19 | Patricia Jangro | 10 | daughter | — | Massachusetts |
| 20 | John L. Jangro | 4 | son | — | Massachusetts |
| 21 | Fabien Brissette | 30 | Head | Mill Wright | Massachusetts |
| 22 | Lillian Brissette | 27 | Wife | — | Canada French |
| 23 | Dennis Brissette | 5 | son | — | Massachusetts |
| 24 | William Brissette | 2 | son | — | Massachusetts |
| 25 | Edward M. Tetreault | 26 | Head | Guest Station Prop. | Massachusetts |
| 26 | Arline Tetreault | 23 | Wife | — | Massachusetts |
| 27 | Clifford Tetreault | 2 | son | — | Massachusetts |
| 28 | Raymond C. Sheperd | 44 | Head | Salesman | Ohio |
| 29 | Edith I. Sheperd | 28 | Wife | — | Massachusetts |
| 30 | Edith I. Sheperd | 14 | daughter | — | Massachusetts |
| 31 | Raymond J. Sheperd | 10 | son | — | Massachusetts |
| 32 | Irene B. Sheperd | 12 | daughter | — | Massachusetts |
| 33 | Richard Summers | 69 | Head | — | Massachusetts |
| 34 | Julia Summers | 61 | Wife | — | Massachusetts |
| 35 | Marion Summers | 33 | daughter | Office Clerk | Massachusetts |
| 36 | Fred Jacobs | 52 | Head | Truck Driver | Massachusetts |
| 37 | Grace Jacobs | 47 | Wife | Store Clerk | Massachusetts |
| 38 | Charles Jacobs THIS PERSON | 26 | son | Gas Station Manager | Massachusetts |
| 39 | Fred R. Miner | 49 | Head | Carpenter | Vermont |
| 40 | Fannie B. Miner | 47 | Wife | — | Vermont |
Pedigree Summary
Charles
Gen 1 · 3 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)