WF
William French — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this William French across the 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1925), then head of a 7-person household.
Age 15
b. ~1925
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | French |
| Given Name | William E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | City of Melrose |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Highest Grade | 8 |
| 1935 Residence | Same Place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | City Of Melrose |
| Est. Birth Year | ~1925 |
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 William | Age | Birth yr |
|---|---|---|---|---|
| Eleanor French | Daughter | — | 9 | ~1931 |
| Leonard French | Head | — | 54 | ~1886 |
| Margaret Lane | Other | — | 76 | ~1864 |
| Charles French | Son | — | 13 | ~1927 |
| Samuel French | Son | — | 16 | ~1924 |
| William French | Son | — | 15 | ~1925 |
| Beatrice French | Spouse | — | 43 | ~1897 |
Census Appearances
1930
Middlesex, Massachusetts
Son, age 5
Middlesex, Massachusetts · implied b. ~1925 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | French |
| Given Name | William R. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Age at First Marriage | 5 |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Son, age 15
Middlesex-County, Massachusetts · implied b. ~1925 — 7 household members
| Surname | French |
| Given Name | William E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | City of Melrose |
| 1935 Residence (County) | Middlesex |
| Highest Grade | 8 |
| 1935 Residence | Same Place |
| 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 William French across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William French
Son · 1940 · age 15 · b. ~1925 · Massachusetts
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Sibling
Eleanor French
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Samuel French
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles French
Sibling · 1940 · age 13
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 — Middlesex-County, Massachusetts
Open full size
1940 US Federal Census — Middlesex-County, Massachusetts
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01613-00029)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Leonard A. French | 54 | Head | Super | Massachusetts |
| 2 | Beatrice V.P. French | 43 | Wife | — | Massachusetts |
| 3 | Samuel L. French | 16 | Son | Egg Route | Massachusetts |
| 4 | William E. French THIS PERSON | 15 | Son | — | Massachusetts |
| 5 | Charles A. French | 13 | Son | — | Massachusetts |
| 6 | Eleanor L. French | 9 | Daughter | — | Massachusetts |
| 7 | Margaret E. Lane | 76 | Lodger | — | Massachusetts |
| 8 | Chung N. Hong | 55 | Head | Laundryman | California |
| 9 | Rollie Hong | 15 | Son | — | Massachusetts |
| 10 | Richard C. Hong | 14 | Son | — | Massachusetts |
| 11 | Daniel D. Mazza | 47 | Head | Heating Engineer | Italy |
| 12 | Martha M. Mazza | 41 | Wife | — | France |
| 13 | Marie A. Mazza | 19 | Daughter | Waitress | Massachusetts |
| 14 | Francis N. Mazza | 18 | Son | — | Massachusetts |
| 15 | Lucy J. Mazza | 16 | Daughter | — | Massachusetts |
| 16 | Daniel D. Jr. Mazza | 14 | Son | — | Massachusetts |
| 17 | Martha M. Mazza | 12 | Daughter | — | Massachusetts |
| 18 | Joan J. Mazza | 7 | Daughter | — | Massachusetts |
| 19 | Janette F. Mazza | 7 | Daughter | — | Massachusetts |
| 20 | Julia A. Faust | 82 | Head | — | Massachusetts |
| 21 | Ida S. Faust | 47 | Daughter | Cutter | Massachusetts |
| 22 | Ella Mcpherson | 76 | Lodger | Supervisor | Maine |
| 23 | James L. Minot | 68 | Head | Grocer | Massachusetts |
| 24 | Cora M. Minot | 64 | Wife | — | Massachusetts |
| 25 | Albert W. Minot | 25 | Son | Draftsman | Massachusetts |
| 26 | Arthur A. Clarke | 63 | Head | Clerk Auditor | Massachusetts |
| 27 | Mable W. Clarke | 58 | Wife | — | Massachusetts |
| 28 | Robert W. Clarke | 24 | Son | Bell Boy | Massachusetts |
| 29 | Maurice J. Darling | 32 | Head | Investigator | Connecticut |
| 30 | Phyllis C. Darling | 30 | Wife | — | New York |
| 31 | Richard J. Darling | 5 | Son | — | New York |
| 32 | Robert C. Darling | 3 | Son | — | New York |
| 33 | Phyllis J. Darling | 0 | Daughter | — | Massachusetts |
| 34 | Eugenia M. Wainwright | 80 | Law | — | Maine |
| 35 | Barbara C. Clarke | 27 | Daughter | Teacher | Massachusetts |
| 36 | Carrie I. Lewis | 76 | Head | — | Massachusetts |
| 37 | Grace A. Taber | 68 | Sister | — | Massachusetts |
| 38 | Mildred L. Smith | 43 | Daughter | Supervisor | Massachusetts |
| 39 | Jacqueline L. Smith | 15 | Daughter | — | Massachusetts |
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)