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William Reilly — 1940 US Census Record
Model Tree available1940 United States Federal Census · Walworth-County, Wisconsin
Our Model Tree links this William Reilly across the 1920, 1930 and 1940 US Censuses in Walworth-County, Wisconsin (XGBoost, ~Confirmed), with identified parents Catherine & Frank — first a son (b.~1918), then head of a 6-person household.
Age 22
b. ~1918
Male
Son
Born: Wisconsin
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Walworth-County, Wisconsin |
| Surname | Reilly |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Fontana on Geneva Lake village |
| 1935 Residence (County) | Walworth |
| Additional Details | |
| Occupation | Laborer |
| Industry | Residential property |
| Class of Worker | PW |
| Hours Worked | 26 |
| Income (1939) | 450 |
| Highest Grade | Hs 2 |
| 1935 Residence | Same place |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
| Occupation | Laborer |
| Township / Ward | Fontana On Geneva Lake Village |
| Est. Birth Year | ~1918 |
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 |
|---|---|---|---|---|
| Ruth Reilly | Daughter | — | 14 | ~1926 |
| Raymond Reilly | Son | — | 18 | ~1922 |
| William Reilly | Son | — | 22 | ~1918 |
| Frank Reilly | Head | — | 50 | ~1890 |
| Margaret Reilly | Daughter | — | 21 | ~1919 |
| Catherine Reilly | Spouse | — | 78 | ~1862 |
Census Appearances
1920
Walworth, Wisconsin
Son, age 2
Walworth, Wisconsin · implied b. ~1918 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Reilly |
| Given Name | William H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Mother Tongue | English |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1930
Walworth, Wisconsin
Son, age 12
Walworth, Wisconsin · implied b. ~1918 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Reilly |
| Given Name | William H. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Can Read/Write | Yes |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1940
Walworth-County, Wisconsin
Son, age 22
Walworth-County, Wisconsin · implied b. ~1918 — 6 household members
| Surname | Reilly |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Fontana on Geneva Lake village |
| 1935 Residence (County) | Walworth |
| Occupation | Laborer |
| Industry | Residential property |
| Class of Worker | PW |
| Hours Worked | 26 |
| Income (1939) | 450 |
| Highest Grade | Hs 2 |
| 1935 Residence | Same place |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
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 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Catherine Reilly (~0.92 confidence) and father Frank Reilly (~0.92 confidence) and mother Catherine Reilly (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Catherine Reilly
b. ~1862
Source mother
● Household
· direct · ~0.92
Father
Frank Reilly
b. ~1890
Source father
● Household
· direct · ~0.92
Mother
Catherine Reilly
b. ~1893
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Reilly
Son · 1940 · age 22 · b. ~1918 · Wisconsin
★ You are viewing this record
Sibling
Ruth Reilly
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Raymond Reilly
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Reilly
Sibling · 1940 · age 21
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 — Walworth-County, Wisconsin
Open full size
1940 US Federal Census — Walworth-County, Wisconsin
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04531-00594)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ray D. Robinson | 53 | Head | Caretaker | Wisconsin |
| 2 | Minnie Robinson | 49 | Wife | — | Illinois |
| 3 | Raymond Robinson | 18 | Son | New Worker | Wisconsin |
| 4 | Earl Robinson | 15 | Son | — | Wisconsin |
| 5 | Frank Sears | 54 | Head | Caretaker | Germany |
| 6 | Grace Sears | 46 | Wife | — | Illinois |
| 7 | Frank Reilly | 50 | Head | Caretaker | England |
| 8 | Catherine Reilly | 78 | Wife | — | England |
| 9 | William Reilly THIS PERSON | 22 | Son | Laborer | Wisconsin |
| 10 | Margaret Reilly | 21 | Daughter | — | Wisconsin |
| 11 | Raymond Reilly | 18 | Son | — | Wisconsin |
| 12 | Ruth Reilly | 14 | Daughter | — | Wisconsin |
| 13 | Glenn Kohl | 31 | Head | Solderer | Wisconsin |
| 14 | Thelma Kohl | 29 | Wife | — | Wisconsin |
| 15 | James L. Kohl | 6 | Son | — | Wisconsin |
| 16 | Glenda Kohl | 1 | Daughter | — | Wisconsin |
| 17 | David Pontius | 64 | Head | Laborer | Indiana |
| 18 | Minnie Pontius | 61 | Wife | — | Indiana |
| 19 | Alfred Kingsley | 47 | Head | Die Caster | So Dakota |
| 20 | Edith Kingsley | 50 | Wife | — | Nebraska |
| 21 | Rutherford Davis | 59 | Head | Farmer | Wisconsin |
| 22 | Anna Davis | 58 | Wife | — | Germany |
| 23 | Ruth Davis | 28 | Daughter | — | Wisconsin |
| 24 | Eugene Sullivan | 64 | Head | Janitor | Wisconsin |
| 25 | Clara Sullivan | 61 | Wife | — | Wisconsin |
| 26 | Mary Gene Sullivan | 18 | Daughter | — | Wisconsin |
| 27 | Robert Smith | 47 | Head | Caretaker | West Virginia |
| 28 | Martha Smith | 42 | Wife | — | Illinois |
| 29 | Thad Frederickson | 31 | Head | Business Merchant | Illinois |
| 30 | Alta Frederickson | 30 | Wife | — | Illinois |
| 31 | Thad Jr. Frederickson | 8 | Son | — | Illinois |
| 32 | Sally Ann Frederickson | 6 | Daughter | — | Illinois |
| 33 | Basil Baker | 70 | Head | Painter | Wisconsin |
| 34 | Beatrice Baker | 70 | Wife | — | Eire |
| 35 | Leon Reiter | 35 | Head | Operating Engineer | Minnesota |
| 36 | Florence Reiter | 28 | Wife | — | Wisconsin |
| 37 | Gene Reiter | 4 | Son | — | Wisconsin |
| 38 | Sharon Reiter | 0 | Daughter | — | Wisconsin |
| 39 | Mary Hill | 34 | Head | — | Illinois |
| 40 | Tommy Hill | 14 | Son | — | Wisconsin |
Related Census Records
Pedigree Summary
William + 3 siblings
Gen 1 · 3 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)