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Frederick Williams — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Frederick Williams across the 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1890), then head of a 3-person household.
Age 50
b. ~1890
Male
Head
Born: England
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Williams |
| Given Name | Frederick G |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | England |
| 1935 Residence (City) | Melrose |
| 1935 Residence (County) | Middlesex |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Foreman |
| Industry | Steam Rail |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 316 |
| Highest Grade | H 4 |
| 1935 Residence | Same House |
| Birth Country | England |
| Birthplace (normalized) | england |
| Occupation | Foreman |
| Township / Ward | Melrose |
| Est. Birth Year | ~1890 |
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 Frederick | Age | Birth yr |
|---|---|---|---|---|
| Frederick Williams | Head | — | 50 | ~1890 |
| Jenny Williams | Spouse | — | 43 | ~1897 |
| Arthur Williams | Son | — | 19 | ~1921 |
Census Appearances
1920
Middlesex, Massachusetts
Head, age 29
Middlesex, Massachusetts · implied b. ~1891 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | Frederick C |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | England |
| Year of Immigration | 1898 |
| Naturalization Status | Naturalized |
| Father's Birthplace | England |
| Mother's Birthplace | New Foundland |
| Occupation | Clerk |
| Industry | Steam Railway |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Birth Country | England |
| Year of Naturalization | 1918 |
| Birthplace (normalized) | england |
1930
Middlesex, Massachusetts
Head, age 40
Middlesex, Massachusetts · implied b. ~1890
●
Primary link
· ~Confirmed · 1 source
XGBoost
| Surname | Williams |
| Given Name | Frederick C. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | England |
| Naturalization Status | Naturalized |
| Year of Immigration | 1897 |
| Age at First Marriage | 24 |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Occupation | Foreman |
| Industry | Steam Railroad |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | O |
| Home Value / Rent | 9000 |
| Radio Set | R |
| Veteran | No |
| Birth Country | England |
| Birthplace (normalized) | england |
1940
Middlesex-County, Massachusetts
Head, age 50
Middlesex-County, Massachusetts · implied b. ~1890 — 3 household members
| Surname | Williams |
| Given Name | Frederick G |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | England |
| 1935 Residence (City) | Melrose |
| 1935 Residence (County) | Middlesex |
| Naturalization Status | Naturalized |
| Occupation | Foreman |
| Industry | Steam Rail |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 316 |
| Highest Grade | H 4 |
| 1935 Residence | Same House |
| Birth Country | England |
| Birthplace (normalized) | england |
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 Williams across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Frederick Williams
Head · 1940 · age 50 · b. ~1890 · 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 — Middlesex-County, Massachusetts
Open full size
1940 US Federal Census — Middlesex-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01613-00482)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | David W Gates | 7 | Son | — | Maine |
| 42 | Judith A Gates | 5 | Daughter | — | Mass |
| 43 | Caroline E Mckenna | 66 | Head | — | Mass |
| 44 | Robert E Jenks | 45 | Head | Public Accountant | Mass |
| 45 | Marion S Jenks | 43 | Wife | — | Mass |
| 46 | William Jenks | 10 | Son | — | Mass |
| 47 | Russell Jenks | 8 | Son | — | Mass |
| 48 | Lawrence Sloan | 46 | Brother-in-law | — | Canada |
| 49 | George B Paine | 53 | Head | Accountant | Mass |
| 50 | Harriet Paine | 50 | Wife | — | Mass |
| 51 | Doris Paine | 20 | Daughter | — | Mass |
| 52 | Leroy Jones | 43 | Head | Asst. Secretary | Rhode Island |
| 53 | Emma P Jones | 42 | Wife | — | Mass |
| 54 | Marjorie Jones | 14 | Daughter | — | Mass |
| 55 | Sidney Skinner | 69 | Head | Painter | Vermont |
| 56 | Fanny S Skinner | 73 | Wife | — | Vermont |
| 57 | Ethel Skinner | 43 | Daughter | Typist | Mass |
| 58 | Pearl Jamison | 38 | Daughter | — | Vermont |
| 59 | John T Maccarty | 59 | Head | Road Supervisor | Mass |
| 60 | Mary H Maccarty | 54 | Wife | — | Canada Eng. |
| 61 | Frederick G Williams THIS PERSON | 50 | Head | Foreman | England |
| 62 | Jenny B Williams | 43 | Wife | — | Canada Eng. |
| 63 | Arthur T Williams | 19 | Son | — | Mass |
| 64 | Robert D Law | 45 | Head | Freight Mgr. | Scotland |
| 65 | Hilda Law | 41 | Wife | — | Canada Eng. |
| 66 | Elizabeth Law | 14 | Daughter | — | New Jersey |
| 67 | Douglas Law | 7 | Son | — | New Jersey |
| 68 | Luther B Gaines | 47 | Head | Probation Off. | Mass |
| 69 | Marguerite Gaines | 42 | Wife | — | Canada Eng. |
| 70 | Ruth Gaines | 14 | Daughter | — | Mass |
| 71 | Bertha Gaines | 67 | Mother | — | Maine |
| 72 | Benjamin F Van Piper | 62 | Head | Salesman | New York |
| 73 | Agnes R Van Piper | 59 | Wife | — | England |
| 74 | Mabel E Van Piper | 38 | Daughter | Stenographer | New York |
| 75 | Jessie A Van Piper | 36 | Daughter | Secretary | New York |
| 76 | Karl Piper | 48 | Head | Salesman | Mass |
| 77 | Marjory Piper | 45 | Wife | — | Mass |
| 78 | Robert Piper | 16 | Son | — | Mass |
| 79 | Joseph G Martin | 61 | Head | Pharmacist | Mass |
| 80 | Esther Martin | 44 | Wife | — | Canada Eng. |
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)