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William Ellis — 1940 US Census Record
Model Tree available1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this William Ellis across the 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed), with identified parents William & Maud — first a son (b.~1919), then head of a 6-person household.
Age 21
b. ~1919
Male
Son
Born: New Jersey
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Ellis |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Concord |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | C 2 |
| 1935 Residence | Same place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Township / Ward | Concord |
| Est. Birth Year | ~1919 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Martha Ellis | Daughter | — | 17 | ~1923 |
| William Ellis | Head | — | 49 | ~1891 |
| Thomas Hoffman | Other | — | 18 | ~1922 |
| Ruby Hoffman | Other | — | 46 | ~1894 |
| William Ellis | Son | — | 21 | ~1919 |
| Maude Ellis | Spouse | — | 49 | ~1891 |
Census Appearances
1920
Middlesex, Massachusetts
Son, age 1
Middlesex, Massachusetts · implied b. ~1919 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ellis |
| Given Name | William W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Iowa |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1930
Middlesex, Massachusetts
Son, age 11
Middlesex, Massachusetts · implied b. ~1919 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ellis |
| Given Name | William D. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | New York |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Middlesex-County, Massachusetts
Son, age 21
Middlesex-County, Massachusetts · implied b. ~1919 — 6 household members
| Surname | Ellis |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Concord |
| 1935 Residence (County) | Middlesex |
| Income (1939) | 0 |
| Highest Grade | C 2 |
| 1935 Residence | Same place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
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 Ellis across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father William Ellis (~0.92 confidence) and mother Maud Ellis (~0.92 confidence) and father William Ellis (~0.92 confidence) and father William Ellis (~0.92 confidence) and mother Maude Ellis (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Ellis
b. ~1889
Source father
● Household
· direct · ~0.92
Mother
Maud Ellis
b. ~1890
Source mother
● Household
· direct · ~0.92
Father
William Ellis
b. ~1891
Source father
● Household
· direct · ~0.92
Father
William Ellis
b. ~1891
Source father
● Household
· direct · ~0.92
Mother
Maude Ellis
b. ~1891
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Ellis
Son · 1940 · age 21 · b. ~1919 · Massachusetts
★ You are viewing this record
Sibling
Martha Ellis
Sibling · 1940 · age 17
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
40 people indexed on this census page (nara:1940:m-t0627-01603-01031)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Eugene G. Kratzer | 33 | Head | Lawyer | Massachusetts |
| 42 | Martha Kratzer | 34 | Wife | — | New Jersey |
| 43 | Sarah A. Kratzer | 4 | Daughter | — | Massachusetts |
| 44 | John D. Kratzer | 2 | Son | — | Massachusetts |
| 45 | Signe Jaakola | 25 | Servant | General Work | Massachusetts |
| 46 | Evelyn Warner | 21 | Servant | Governess | New Hampshire |
| 47 | Joseph M. Wright | 54 | Head | Veterinarian | Massachusetts |
| 48 | Armand Corriveau | 33 | Lodger | Farm Laborer | Massachusetts |
| 49 | Henry Deeley | 78 | Head | Farmer | Massachusetts |
| 50 | Harvey Deeley | 69 | Brother | Farmer | Massachusetts |
| 51 | Charles M. Cheney | 45 | Head | Certified Accountant | Massachusetts |
| 52 | Sylvia H. Cheney | 43 | Wife | — | Pennsylvania |
| 53 | Grace H. Cheney | 17 | Daughter | — | Massachusetts |
| 54 | Ruth Cheney | 15 | Daughter | — | Massachusetts |
| 55 | Elizabeth Cheney | 11 | Daughter | — | Massachusetts |
| 56 | Mary Thornton | 63 | Servant | Housekeeper | Irish Free State |
| 57 | William B. Ellis | 49 | Head | Own Business | Pennsylvania |
| 58 | Maude Ellis | 49 | Wife | — | Iowa |
| 59 | William Ellis THIS PERSON | 21 | Son | — | New Jersey |
| 60 | Martha Ellis | 17 | Daughter | — | Massachusetts |
| 61 | Ruby Hoffman | 46 | Sister-in-law | Home Economist | Iowa |
| 62 | Thomas Hoffman | 18 | Nephew | — | Indiana |
| 63 | Dennis B. Maguire | 44 | Head | Farmer | Massachusetts |
| 64 | Madeline T. Maguire | 31 | Sister | Secretary | Massachusetts |
| 65 | Ida J. Rice | 71 | Servant | Housekeeper | Massachusetts |
| 66 | John Bergson | 66 | Lodger | Farm Laborer | Sweden |
| 67 | Daniel Mckenzie | 55 | Lodger | Farm Laborer | Canada-Eng |
| 68 | Russell Eisenhauer | 43 | Head | Farmer | Canada-Eng |
| 69 | Laura S. Eisenhauer | 39 | Wife | Milliner | Massachusetts |
| 70 | Alban M. Daniel | 48 | Head | Farm Laborer | Massachusetts |
| 71 | Mary E. Daniel | 47 | Wife | Lodging House Keeper | Canada-Eng |
| 72 | Charlie Chenus | 64 | Lodger | Farm Laborer | Lithuania |
| 73 | John K. Luwinski | 61 | Lodger | Farm Laborer | Lithuania |
| 74 | Adam Kamensk | 62 | Lodger | Farm Laborer | Lithuania |
| 75 | Tony Regua | 68 | Lodger | Farm Laborer | Italy |
| 76 | Thomas Zuninsky | 52 | Lodger | Farm Laborer | Lithuania |
| 77 | Christopher Henkus | 47 | Lodger | Farm Laborer | Lithuania |
| 78 | Arvid Anderson | 38 | Lodger | Farm Laborer | Sweden |
| 79 | Willard A. Hemenway | 43 | Head | Farm Laborer | Massachusetts |
| 80 | Alice C. Hemenway | 34 | Wife | — | Connecticut |
Pedigree Summary
William + 1 sibling
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)