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William Donnelly — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Essex-County, New Jersey
Our Model Tree links this William Donnelly across the 1930 and 1940 US Censuses in Essex-County, New Jersey (XGBoost, ~Confirmed) — first a head (b.~1909), then head of a 7-person household.
Age 31
b. ~1909
Male
Head
Born: New Jersey
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Essex-County, New Jersey |
| Surname | Donnelly |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | New Jersey |
| 1935 Residence (City) | Newark |
| 1935 Residence (County) | Essex |
| Additional Details | |
| Occupation | Salesman |
| Industry | Meat Packers |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 278 |
| Highest Grade | C-4 |
| 1935 Residence | New Jersey |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | Salesman |
| Township / Ward | Bloomfield |
| Est. Birth Year | ~1909 |
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 |
|---|---|---|---|---|
| William Donnelly | Head | — | 31 | ~1909 |
| Marie Donnelly | Daughter | — | 7 | ~1933 |
| Nancy Donnelly | Daughter | — | 6 | ~1934 |
| William Donnelly | Son | — | ~1940 | |
| Joan Donnelly | Daughter | — | 5 | ~1935 |
| Claire Donnelly | Daughter | — | 2 | ~1938 |
| Marie Donnelly | Spouse | — | 30 | ~1910 |
Census Appearances
1930
Passaic, New …
Son, age 21
Passaic, New Jersey · implied b. ~1909 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Donneely |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | Georgia |
| Occupation | Dyers helper |
| Industry | Dye Shop |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Essex-County, New …
Head, age 31
Essex-County, New Jersey · implied b. ~1909 — 7 household members
| Surname | Donnelly |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | New Jersey |
| 1935 Residence (City) | Newark |
| 1935 Residence (County) | Essex |
| Occupation | Salesman |
| Industry | Meat Packers |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 278 |
| Highest Grade | C-4 |
| 1935 Residence | New Jersey |
| 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 Donnelly across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
William Donnelly
Head · 1940 · age 31 · b. ~1909 · New Jersey
★ 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 — Essex-County, New Jersey
Open full size
1940 US Federal Census — Essex-County, New Jersey
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-02329-00443)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Winfield Taylor | 42 | Head | Radio Repairman | New York |
| 2 | Grace C. Taylor | 40 | Wife | — | New York |
| 3 | Winfield S. Taylor | 15 | Son | — | New York |
| 5 | John Troemel | 47 | Head | Guard | Hungary |
| 6 | Mary Troemel | 51 | Wife | — | New Jersey |
| 7 | John Troemel | 13 | Son | — | New Jersey |
| 8 | Walter Kurkiewicz | 39 | Head | Music Teacher | New Jersey |
| 9 | Valeria Kurkiewicz | 38 | Wife | — | New Jersey |
| 10 | Constance Kurkiewicz | 16 | Daughter | — | New Jersey |
| 11 | Robert Kurkiewicz | 9 | Son | — | New Jersey |
| 12 | Eleanor Kurkiewicz | 6 | Daughter | — | New Jersey |
| 13 | Frank Marvel | 33 | Head | Counterman | New Jersey |
| 14 | Hazel Marvel | 33 | Wife | — | New Jersey |
| 15 | Joyce Marvel | 9 | Daughter | — | New Jersey |
| 16 | Shirley Marvel | 6 | Daughter | — | New Jersey |
| 18 | William Donnelly THIS PERSON | 31 | Head | Salesman | New Jersey |
| 19 | Marie Donnelly | 30 | Wife | — | New Jersey |
| 20 | Marie Donnelly | 7 | Daughter | — | New Jersey |
| 21 | Nancy Donnelly | 6 | Daughter | — | New Jersey |
| 22 | Joan Donnelly | 5 | Daughter | — | New Jersey |
| 23 | Claire Donnelly | 2 | Daughter | — | New Jersey |
| 24 | William Donnelly | 0 | Son | — | New Jersey |
| 25 | Joseph Ward | 36 | Head | Supervisor | New Jersey |
| 26 | Beatrice Ward | 36 | Wife | — | Conn. |
| 27 | John Ward | 9 | Son | — | New Jersey |
| 28 | Patricia Ward | 7 | Daughter | — | New Jersey |
| 29 | Thomas Ward | 5 | Son | — | New Jersey |
| 30 | Robert Ward | 4 | Son | — | New Jersey |
| 31 | Richard Ward | 1 | Son | — | New Jersey |
| 32 | Edgar Huot | 64 | Father in law | Watchmaker | Canada French |
| 33 | Mary Huot | 64 | Mother in law | — | New York |
| 34 | Conrad Solder | 64 | Head | Mechanic | England |
| 35 | Alice Solder | 60 | Wife | — | England |
| 36 | Doris Keightley | 30 | Daughter | Clerk | England |
| 37 | Charles Keightley | 35 | Son in law | — | New Jersey |
| 38 | George Keightley | 12 | Grandson | — | New Jersey |
| 39 | Frank Smith | 46 | Head | Policeman | New Jersey |
| 40 | Margaret Smith | 36 | Wife | — | New Jersey |
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)