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William Long — 1940 US Census Record
Model Tree available1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this William Long across the 1910, 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Clarence & William — first a head (b.~1905), then head of a 4-person household.
Age 35
b. ~1905
Male
Head
Born: Massachusetts
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Long |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Framingham |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Occupation | Machinist |
| Industry | Paper Converter |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1200 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same house |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Machinist |
| Township / Ward | Framingham |
| Est. Birth Year | ~1905 |
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 William | Age | Birth yr |
|---|---|---|---|---|
| Barbara Long | Daughter | — | 12 | ~1928 |
| William Long | Head | — | 35 | ~1905 |
| Robert Long | Son | — | 9 | ~1931 |
| Eileen Long | Spouse | — | 35 | ~1905 |
Census Appearances
1910
Middlesex, Massachusetts
Son, age 2
Middlesex, Massachusetts · implied b. ~1908 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Long |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1920
Middlesex, Massachusetts
Son, age 13
Middlesex, Massachusetts · implied b. ~1907 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Long |
| Given Name | William H Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Middlesex, Massachusetts
Son, age 24
Middlesex, Massachusetts · implied b. ~1906 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Long |
| Given Name | William 2nd |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| 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
Middlesex-County, Massachusetts
Head, age 35
Middlesex-County, Massachusetts · implied b. ~1905 — 4 household members
| Surname | Long |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Framingham |
| 1935 Residence (County) | Middlesex |
| Occupation | Machinist |
| Industry | Paper Converter |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1200 |
| Highest Grade | Hs 4 |
| 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 William Long across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Clarence Long (~0.92 confidence) and father William Long (~0.92 confidence) and father William Long (~0.92 confidence) and mother Ellen Long (~0.92 confidence) and mother Bertha Long (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Clarence Long
b. ~1885
Source father
● Household
· direct · ~0.92
Father
William Long
b. ~1865
Source father
● Household
· direct · ~0.92
Father
William Long
b. ~1878
Source father
● Household
· direct · ~0.92
Mother
Ellen Long
b. ~1868
Source mother
● Household
· direct · ~0.92
Mother
Bertha Long
b. ~1891
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Long
Head · 1940 · age 35 · b. ~1905 · 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 — 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-t0627-01606-00324)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Alice Hollander | 9 | Daughter | — | Massachusetts |
| 42 | William Long THIS PERSON | 35 | Head | Machinist | Massachusetts |
| 43 | Eileen Long | 35 | Wife | Clerk | Connecticut |
| 44 | Barbara Long | 12 | Daughter | — | Massachusetts |
| 45 | Robert Long | 9 | Son | — | Massachusetts |
| 46 | John A. Cunningham | 63 | Head | Manager | Massachusetts |
| 47 | Annie Cunningham | 48 | Wife | — | Scotland |
| 48 | Rosemary Cunningham | 30 | Daughter | Nurse | Massachusetts |
| 49 | Anna Smith | 19 | Step-daughter | — | Scotland |
| 50 | Mary Gibbons | 64 | Head | — | Massachusetts |
| 51 | Katherine Gibbons | 33 | Daughter | Clerk-Typist | Massachusetts |
| 52 | James Ricard | 24 | Roomer | Clerk | Massachusetts |
| 53 | Maurice E. Dunlap | 65 | Head | — | Maine |
| 54 | Avis V. Dunlap | 61 | Wife | — | Maine |
| 55 | Charles C. Rines | 40 | Roomer | Designer | Rhode Island |
| 56 | Hyman Aarons | 50 | Roomer | Printer | Massachusetts |
| 57 | Wilfred Dupree | 72 | Head | — | Irish Free State |
| 58 | Theresa Dupree | 44 | Daughter | Machine Operat. | Massachusetts |
| 59 | Fred Dupree | 44 | Son | Locksmith | Massachusetts |
| 60 | Marguerite Dupree | 39 | Daughter | Machine Operat. | Massachusetts |
| 61 | Walter Dupree | 35 | Son | Mechanic | Massachusetts |
| 62 | Arthur Dupree | 33 | Son | Trucking | Massachusetts |
| 63 | Hattie E. Tillotson | 70 | Head | — | Massachusetts |
| 64 | Hattie G. Lawless | 38 | Daughter | Bench Worker | Massachusetts |
| 65 | Albert F. Lawless | 39 | Son-in-law | Laborer | Massachusetts |
| 66 | Robert F. Lawless | 13 | Grandson | — | Massachusetts |
| 67 | Frances Lawless | 12 | Granddaughter | — | Massachusetts |
| 68 | John F. Dagg | 56 | Head | Mechanic | Massachusetts |
| 69 | Mary Dagg | 49 | Wife | — | Massachusetts |
| 70 | John B. Dagg | 21 | Son | Clerk | Massachusetts |
| 71 | Virginia Dagg | 17 | Daughter | — | Massachusetts |
| 72 | Robert Dagg | 15 | Son | — | Massachusetts |
| 73 | Theodore Brown | 28 | Head | Machinist | Massachusetts |
| 74 | Beatrice Brown | 22 | Wife | — | Massachusetts |
| 75 | Stanwood Towne | 62 | Head | Laborer | Massachusetts |
| 76 | Lillian Towne | 46 | Wife | — | Massachusetts |
| 77 | Bernard J. Towne | 25 | Son | Hat Maker | Massachusetts |
| 78 | Francis Towne | 17 | Son | — | Massachusetts |
| 79 | George Towne | 23 | Son | Laborer | Massachusetts |
| 80 | Katherine Towne | 0 | Granddaughter | — | Massachusetts |
Pedigree Summary
William
Gen 1 · 5 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)