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Margaret Reilly — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Mclean-County, Illinois
Our Model Tree links this Margaret Reilly across the 1930 and 1940 US Censuses in Mclean-County, Illinois (XGBoost, ~Confirmed) — first a daughter (b.~1918), then head of a 8-person household.
Age 22
b. ~1918
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Mclean-County, Illinois |
| Surname | Reilly |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Village of Colfax |
| 1935 Residence (County) | McLean |
| Additional Details | |
| Highest Grade | No 1 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Village Of Colfax |
| 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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Frank Reilly | Head | — | 63 | ~1877 |
| Mary Reilly | Spouse | — | 56 | ~1884 |
| Bernard Reilly | Son | — | 26 | ~1914 |
| Anna Reilly | Daughter | — | 13 | ~1927 |
| Leo Reilly | Son | — | 29 | ~1911 |
| Margaret Reilly | Daughter | — | 22 | ~1918 |
| Rosiland Reilly | Daughter | — | 18 | ~1922 |
| Katherine Reilly | Daughter | — | 16 | ~1924 |
Census Appearances
1930
Mclean, Illinois
Daughter, age 12
Mclean, Illinois · implied b. ~1918 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Reilly |
| Given Name | Margaret L. |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Iowa |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Mclean-County, Illinois
Daughter, age 22
Mclean-County, Illinois · implied b. ~1918 — 8 household members
| Surname | Reilly |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Village of Colfax |
| 1935 Residence (County) | McLean |
| Highest Grade | No 1 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 Margaret Reilly across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Margaret Reilly
Daughter · 1940 · age 22 · b. ~1918 · Illinois
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Sibling
Rosiland Reilly
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Katherine Reilly
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bernard Reilly
Sibling · 1940 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anna Reilly
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leo Reilly
Sibling · 1940 · age 29
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 — Mclean-County, Illinois
Open full size
1940 US Federal Census — Mclean-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00842-00526)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | A. H. Knight | 72 | Head | — | Illinois |
| 2 | Eva M. Knight | 70 | Wife | — | Ohio |
| 3 | Fred W. Dale | 47 | Head | Manager | Illinois |
| 4 | Edna M. Dale | 45 | Wife | — | Illinois |
| 5 | Fred Wilfong | 21 | Son | Electrician | Illinois |
| 6 | Fritzie Wilfong | 17 | Son | Laborer | Illinois |
| 7 | Lois Mae Wilfong | 15 | Daughter | — | Illinois |
| 8 | Henry Myer | 68 | Head | — | Germany |
| 9 | Anna Myer | 81 | Wife | — | Kentucky |
| 10 | George Carter | 72 | Head | — | Illinois |
| 11 | Ida Carter | 67 | Wife | Laundress | Illinois |
| 12 | Lionel Carter | 22 | Son | Laborer | Illinois |
| 13 | Loren Carter | 18 | Son | — | Illinois |
| 14 | Ralin Beason | 13 | Grandson | — | Illinois |
| 15 | Frank P. Reilly | 63 | Head | Laborer | Illinois |
| 16 | Mary Reilly | 56 | Wife | — | Iowa |
| 17 | Leo Reilly | 29 | Son | Delivery Boy | Illinois |
| 18 | Bernard Reilly | 26 | Son | Clerk | Illinois |
| 19 | Margaret Reilly THIS PERSON | 22 | Daughter | — | Illinois |
| 20 | Rosiland Reilly | 18 | Daughter | — | Illinois |
| 21 | Katherine Reilly | 16 | Daughter | — | Illinois |
| 22 | Anna Reilly | 13 | Daughter | — | Illinois |
| 23 | — | None | — | — | — |
| 24 | Ernest Kauth | 27 | Head | Laborer | Illinois |
| 25 | Ellen Kauth | 23 | Wife | — | N. Dakota |
| 26 | Janice Kauth | 1 | Daughter | — | Illinois |
| 27 | Daisy Henline | 47 | Head | Laundress | Illinois |
| 28 | Dorothy Henline | 25 | Daughter | — | Iowa |
| 29 | Earl Glass | 24 | Son-in-law | Laborer | Kentucky |
| 30 | Helen Glass | 18 | Wife | — | Illinois |
| 31 | Evelyn Glass | 1 | Daughter | — | Illinois |
| 32 | Myrtle Gregory | 58 | Head | — | Indiana |
| 33 | Frank Sletch | 63 | Head | Proprietor | Illinois |
| 34 | Della Sletch | 61 | Wife | — | Illinois |
| 35 | Lyle Sletch | 22 | Son | Laborer | Illinois |
| 36 | Robert Sletch | 25 | Son | Laborer | Illinois |
| 37 | Betty Sletch | 17 | Daughter | — | Illinois |
| 38 | Mary Catherine Sletch | 14 | Granddaughter | — | Illinois |
| 39 | Don E. Morris | 51 | Head | Contractor | Illinois |
| 40 | Mary Morris | 50 | Wife | — | Illinois |
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)