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William Reilly — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Columbia-County, Pennsylvania
Our Model Tree links this William Reilly across the 1930 and 1940 US Censuses in Columbia-County, Pennsylvania (XGBoost, ~Confirmed) — first a son (b.~1928), then head of a 8-person household.
Age 12
b. ~1928
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Columbia-County, Pennsylvania |
| Surname | Reilly |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Byrnesville |
| 1935 Residence (County) | Columbia |
| Additional Details | |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Byrnesville |
| Est. Birth Year | ~1928 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Elizabeth Reilly | Spouse | — | 31 | ~1909 |
| Michael Reilly | Head | — | 53 | ~1887 |
| James Reilly | Son | — | 6 | ~1934 |
| Mary Reilly | Daughter | — | 9 | ~1931 |
| Raymond Reilly | Son | — | 10 | ~1930 |
| Michael Reilly | Son | — | 5 | ~1935 |
| Elizabeth Reilly | Daughter | — | 8 | ~1932 |
| William Reilly | Son | — | 12 | ~1928 |
Census Appearances
1930
Columbia, Pennsylvania
Son, age 2
Columbia, Pennsylvania · implied b. ~1928 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Riley |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | No |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Columbia-County, Pennsylvania
Son, age 12
Columbia-County, Pennsylvania · implied b. ~1928 — 8 household members
| Surname | Reilly |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Byrnesville |
| 1935 Residence (County) | Columbia |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 Reilly across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Reilly
Son · 1940 · age 12 · b. ~1928 · Pennsylvania
★ You are viewing this record
Sibling
James Reilly
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elizabeth Reilly
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Michael Reilly
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Reilly
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Raymond Reilly
Sibling · 1940 · age 10
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 — Columbia-County, Pennsylvania
Open full size
1940 US Federal Census — Columbia-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03474-00256)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Catherine Michaler | 30 | Daughter | Nurse | Pennsylvania |
| 42 | James Michaler | 25 | Son | Mechanic | Pennsylvania |
| 43 | Anthony Michaler | 23 | Son | Laborer | Pennsylvania |
| 44 | Richard Michaler | 25 | Son | Laborer | Pennsylvania |
| 45 | Edward Michaler | 22 | Son | Truck Driver | Pennsylvania |
| 46 | Thomas Brennan | 47 | Head | Machinist | Pennsylvania |
| 47 | Margaret Brennan | 47 | Wife | — | Pennsylvania |
| 48 | Gertrude Brennan | 22 | Daughter | Sewing | Pennsylvania |
| 49 | Catherine Brennan | 18 | Daughter | New Worker | Pennsylvania |
| 50 | Thomas Brennan | 16 | Son | — | Pennsylvania |
| 51 | Mary Brennan | 14 | Daughter | — | Pennsylvania |
| 52 | John Brennan | 9 | Daughter | — | Pennsylvania |
| 53 | Thomas Mooney | 58 | Head | Laborer | Pennsylvania |
| 54 | Julia Mooney | 44 | Wife | — | Pennsylvania |
| 55 | Dolores Mooney | 10 | Daughter | — | Pennsylvania |
| 56 | James Flannery | 45 | Head | Miner | Pennsylvania |
| 57 | Agnes Flannery | 43 | Wife | — | Pennsylvania |
| 58 | Mary Flannery | 22 | Daughter | Typist | Pennsylvania |
| 59 | James Flannery | 20 | Son | New Worker | Pennsylvania |
| 60 | William Flannery | 17 | Son | — | Pennsylvania |
| 61 | Agnes Flannery | 13 | Daughter | — | Pennsylvania |
| 62 | Mary Byrnes | 65 | Head | — | Pennsylvania |
| 63 | Anthony Byrnes | 35 | Son | Laborer | Pennsylvania |
| 64 | Anna Byrnes | 33 | Daughter | Teacher | Pennsylvania |
| 65 | Michael Reilly | 53 | Head | Laborer | Pennsylvania |
| 66 | Elizabeth Reilly | 31 | Wife | — | Pennsylvania |
| 67 | William Reilly THIS PERSON | 12 | Son | — | Pennsylvania |
| 68 | Raymond Reilly | 10 | Son | — | Pennsylvania |
| 69 | Mary Theresa Reilly | 9 | Daughter | — | Pennsylvania |
| 70 | Elizabeth Ann Reilly | 8 | Daughter | — | Pennsylvania |
| 71 | James Reilly | 6 | Son | — | Pennsylvania |
| 72 | Michael Reilly | 5 | Son | — | Pennsylvania |
| 73 | Thomas Mobum | 59 | Head | Miner | Pennsylvania |
| 74 | Elizabeth Mobum | 56 | Wife | — | Pennsylvania |
| 75 | Louis Krifflebaum | 42 | Head | Laborer | Pennsylvania |
| 76 | Anna Krifflebaum | 37 | Wife | — | Pennsylvania |
| 77 | Sarah Louise Krifflebaum | 9 | Daughter | — | Pennsylvania |
| 78 | Louis Jr. Krifflebaum | 4 | Son | — | Pennsylvania |
| 79 | Martin Monahan | 67 | Head | Deputy Sheriff | Eire |
| 80 | Kathryn L. Monahan | 30 | Daughter | Post Master | Pennsylvania |
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)