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John Reilly — 1940 US Census Record
Linked across censuses1940 United States Federal Census · New-Castle-County, Delaware
Our Model Tree links this John Reilly across the 1930 and 1940 US Censuses in New-Castle-County, Delaware (XGBoost, ~Confirmed) — first a son (b.~1919), then head of a 10-person household.
Age 21
b. ~1919
Male
Son
Born: Delaware
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | New-Castle-County, Delaware |
| Surname | Reilly |
| Given Name | John Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Delaware |
| 1935 Residence (City) | Wilmington |
| 1935 Residence (County) | New Castle |
| Additional Details | |
| Occupation | Laborer |
| Industry | Railroad Co. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 839 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
| Occupation | Laborer |
| Township / Ward | Wilmington |
| 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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Alice Reilly | Daughter | — | 16 | ~1924 |
| Elnora Reilly | Daughter | — | 17 | ~1923 |
| Tressa Reilly | Daughter | — | 11 | ~1929 |
| John Reilly | Head | — | 46 | ~1894 |
| Gerald Reilly | Son | — | 9 | ~1931 |
| Joseph Reilly | Son | — | 6 | ~1934 |
| Donald Reilly | Son | — | 19 | ~1921 |
| John Reilly | Son | — | 21 | ~1919 |
| Francis Reilly | Son | — | 13 | ~1927 |
| Alice Reilly | Spouse | — | 45 | ~1895 |
Census Appearances
1930
New Castle, …
Son, age 11
New Castle, Delaware · implied b. ~1919 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Reilley |
| Given Name | John E. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Delaware |
| Father's Birthplace | Delaware |
| Mother's Birthplace | Delaware |
| Can Read/Write | Yes |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
1940
New-Castle-County, Delaware
Son, age 21
New-Castle-County, Delaware · implied b. ~1919 — 10 household members
| Surname | Reilly |
| Given Name | John Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Delaware |
| 1935 Residence (City) | Wilmington |
| 1935 Residence (County) | New Castle |
| Occupation | Laborer |
| Industry | Railroad Co. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 839 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
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 John Reilly across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Reilly
Son · 1940 · age 21 · b. ~1919 · Delaware
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Sibling
Alice Reilly
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Francis Reilly
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donald Reilly
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elnora Reilly
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Tressa Reilly
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Reilly
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gerald Reilly
Sibling · 1940 · age 9
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 — New-Castle-County, Delaware
Open full size
1940 US Federal Census — New-Castle-County, Delaware
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00549-00167)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Vernon Steward | 56 | Lodger | Laborer | Pennsylvania |
| 42 | Albert B. Husbands | 37 | Head | Clerk | Delaware |
| 43 | Alva W. Husbands | 34 | Wife | — | Delaware |
| 44 | A. Elizabeth Husbands | 15 | Daughter | — | Delaware |
| 45 | Walter Husbands | 31 | Brother | Pattern Maker | Delaware |
| 46 | Harry P. Coshun | 65 | Uncle | — | Maryland |
| 47 | Joseph Rossiter | 76 | Head | Brick Setter | Delaware |
| 48 | Hannah Rossiter | 70 | Wife | — | Delaware |
| 49 | Helen Rossiter | 38 | Daughter | Sore Maker | Delaware |
| 50 | George Rossiter | 35 | Son | Laborer | Delaware |
| 51 | John R. Jones | 21 | Friend | — | Delaware |
| 52 | Joseph Purck | 28 | Head | Electric Welder | Delaware |
| 53 | Mary Purck | 27 | Wife | — | Delaware |
| 54 | Walter Purck | 2 | Son | — | Delaware |
| 55 | Wasil Volynetz | 56 | Head | Laborer | Russia |
| 56 | Anna Volynetz | 54 | Wife | — | Russia |
| 57 | Peter Volynetz | 28 | Son | Elevator Operator | Russia |
| 58 | Annie Volynetz | 11 | Daughter | — | Delaware |
| 59 | William H. Butler | 60 | Head | Trolley Conductor | Maryland |
| 60 | Viola Butler | 54 | Wife | — | Maryland |
| 61 | Hilda Butler | 20 | Daughter | — | Delaware |
| 62 | Curtis Butler | 26 | Son | Huckster | Maryland |
| 63 | Jesse Butler | 21 | Daughter in law | — | Maryland |
| 64 | Julia A. Scanlan | 73 | Head | — | Delaware |
| 65 | Julia S. Scanlan | 40 | Daughter | Stenographer | Delaware |
| 66 | John F. Reilly | 46 | Head | Fireman | Delaware |
| 67 | Alice Reilly | 45 | Wife | — | Delaware |
| 68 | John Jr. Reilly THIS PERSON | 21 | Son | Laborer | Delaware |
| 69 | Donald Reilly | 19 | Son | Laborer | Delaware |
| 70 | Elnora Reilly | 17 | Daughter | Stenographer | Delaware |
| 71 | Alice B. Reilly | 16 | Daughter | — | Delaware |
| 72 | Francis Reilly | 13 | Son | — | Delaware |
| 73 | Tressa Reilly | 11 | Daughter | — | Delaware |
| 74 | Gerald Reilly | 9 | Son | — | Delaware |
| 75 | Joseph Reilly | 6 | Son | — | Delaware |
| 76 | Francis Lynch | 25 | Head | Laborer | Delaware |
| 77 | Elizabeth Lynch | 28 | Wife | — | Delaware |
| 78 | Francis E. Lynch | 7 | Daughter | — | Delaware |
| 79 | Richard Lynch | 4 | Son | — | Delaware |
| 80 | Raymond Lynch | 1 | Son | — | Delaware |
Related Census Records
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)