FJ
Frederick Jones — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Essex-County, Massachusetts
Our Model Tree links this Frederick Jones across the 1920, 1930 and 1940 US Censuses in Essex-County, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1893), then head of a 4-person household.
Age 47
b. ~1893
Male
Head
Born: Maine
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Essex-County, Massachusetts |
| Surname | Jones |
| Given Name | Frederick |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Maine |
| 1935 Residence (City) | Swampscott |
| 1935 Residence (County) | Essex |
| Additional Details | |
| Occupation | Executive Eng. |
| Industry | Oil |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 5000 |
| Highest Grade | C-2 |
| 1935 Residence | Same house |
| Birth State | Maine |
| Birth Country | United States |
| Birthplace (normalized) | maine |
| Occupation | Executive Eng. |
| Township / Ward | Swampscott |
| Est. Birth Year | ~1893 |
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 Frederick | Age | Birth yr |
|---|---|---|---|---|
| Marilyn Jones | Daughter | — | 11 | ~1929 |
| Frederick Jones | Head | — | 47 | ~1893 |
| Elsie Jones | Spouse | — | 43 | ~1897 |
| Frederick Jones | Son | — | 17 | ~1923 |
Census Appearances
1920
Essex, Massachusetts
Other, age 27
Essex, Massachusetts · implied b. ~1893 — 19 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jones |
| Given Name | Frederick S |
| Relationship to Head | Lodger |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Maine |
| Father's Birthplace | Maine |
| Mother's Birthplace | Maine |
| Occupation | Engineer |
| Industry | Electric Mfg Co |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Maine |
| Birth Country | United States |
| Birthplace (normalized) | maine |
1930
Essex, Massachusetts
Head, age 37
Essex, Massachusetts · implied b. ~1893 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jones |
| Given Name | Frederick H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Maine |
| Age at First Marriage | 28 |
| Father's Birthplace | Maine |
| Mother's Birthplace | Maine |
| Occupation | Manager |
| Industry | Oil Company |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 9,000 |
| Radio Set | R |
| Veteran | No |
| Birth State | Maine |
| Birth Country | United States |
| Birthplace (normalized) | maine |
1940
Essex-County, Massachusetts
Head, age 47
Essex-County, Massachusetts · implied b. ~1893 — 4 household members
| Surname | Jones |
| Given Name | Frederick |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Maine |
| 1935 Residence (City) | Swampscott |
| 1935 Residence (County) | Essex |
| Occupation | Executive Eng. |
| Industry | Oil |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 5000 |
| Highest Grade | C-2 |
| 1935 Residence | Same house |
| 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 Frederick Jones across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Frederick Jones
Head · 1940 · age 47 · b. ~1893 · Massachusetts
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Essex-County, Massachusetts
Open full size
1940 US Federal Census — Essex-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01590-00706)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Minnie R. Fisher | 44 | Wife | — | Maine |
| 42 | Irving L. Fisher | 22 | Son | — | Mass |
| 43 | Frances Fisher | 21 | Daughter | Stenographer | Mass |
| 44 | Martin Fisher | 17 | Son | — | Mass |
| 45 | Mitchell Fisher | 15 | Son | — | Mass |
| 46 | Danny Fisher | 8 | Son | — | Mass |
| 47 | Frederick J. Walsh | 38 | Head | Service Foreman | Mass |
| 48 | Theresa D. Walsh | 38 | Wife | — | Mass |
| 49 | Frederick J. Walsh | 9 | Son | — | Mass |
| 50 | Robert Walsh | 7 | Son | — | Mass |
| 51 | Margaret Walsh | 2 | Daughter | — | Mass |
| 52 | Flora E. Illingworth | 75 | Head | — | Mass |
| 53 | Bertha Norris | 67 | Boarder | — | Mass |
| 54 | Albert Messier | 29 | Boarder | Attendant | Mass |
| 55 | James Waldron | 49 | Head | Garage Manager | Dist. of Col. |
| 56 | Helen D. Waldron | 35 | Wife | — | New York State |
| 57 | James Waldron | 11 | Son | — | Mass |
| 58 | Mary Waldron | 10 | Daughter | — | Mass |
| 59 | Andrew M. Nixon | 45 | Head | Civil Engineer | Scotland |
| 60 | Bessie Nixon | 45 | Wife | — | Scotland |
| 61 | Arabelle Nixon | 14 | Daughter | — | Mass |
| 62 | Jessica Nixon | 12 | Daughter | — | Mass |
| 63 | Arthur M. Leopold | 35 | Head | Shoe Case Operator | New York |
| 64 | Mary R. Leopold | 35 | Wife | — | New York |
| 65 | Janet H. Leopold | 10 | Daughter | — | Mass |
| 66 | Rilda A. Leopold | 8 | Daughter | — | Mass |
| 67 | James Riordan | 37 | Head | Salesman | Mass |
| 68 | Annie Riordan | 33 | Wife | — | Mass |
| 69 | Betty Riordan | 8 | Daughter | — | Mass |
| 70 | Richard Riordan | 2 | Son | — | Mass |
| 71 | Linus Chernobay | 43 | Head | Teacher | Mass |
| 72 | Mary E. Chernobay | 39 | Wife | — | Mass |
| 73 | Barbara Chernobay | 3 | Daughter | — | Mass |
| 74 | Frederick Jones THIS PERSON | 47 | Head | Executive Eng. | Maine |
| 75 | Elsie Jones | 43 | Wife | — | Maine |
| 76 | Frederick Jones | 17 | Son | — | Mass |
| 77 | Marilyn Jones | 11 | Daughter | — | Mass |
| 78 | Mariah S. Hastings | 78 | Head | — | Mass |
| 79 | Claire Hastings | 47 | Daughter | — | Mass |
| 80 | Gertrude Sprague | 22 | Servant | Maid | Mass |
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)