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Margaret Lyons — 1940 US Census Record
Model Tree available1940 United States Federal Census · Champaign-County, Illinois
Our Model Tree links this Margaret Lyons across the 1920, 1930 and 1940 US Censuses in Champaign-County, Illinois (XGBoost, ~Confirmed), with identified parents T & Thomas — first a daughter (b.~1919), then head of a 4-person household.
Age 21
b. ~1919
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Champaign-County, Illinois |
| Surname | Lyons |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Champaign city |
| 1935 Residence (County) | Champaign |
| Additional Details | |
| Industry | PW |
| Highest Grade | C 4 |
| 1935 Residence | 40 |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Champaign City |
| 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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Thomas Lyons | Head | — | 49 | ~1891 |
| Margaret Lyons | Daughter | — | 21 | ~1919 |
| Eulah Lyons | Spouse | — | 49 | ~1891 |
| Edward Lyons | Son | — | 19 | ~1921 |
Census Appearances
1920
Champaign, Illinois
Other, age 1
Champaign, Illinois · implied b. ~1919 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lyons |
| Given Name | Margaret |
| Relationship to Head | Roomer |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Champaign, Illinois
Daughter, age 11
Champaign, Illinois · implied b. ~1919 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lyons |
| Given Name | Margaret |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Champaign-County, Illinois
Daughter, age 21
Champaign-County, Illinois · implied b. ~1919 — 4 household members
| Surname | Lyons |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Champaign city |
| 1935 Residence (County) | Champaign |
| Industry | PW |
| Highest Grade | C 4 |
| 1935 Residence | 40 |
| 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 Lyons across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father T Lyons (~0.92 confidence) and father Thomas Lyons (~0.92 confidence) and mother Eulah Lyons (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
T Lyons
b. ~1891
Source father
● Household
· direct · ~0.92
Father
Thomas Lyons
b. ~1891
Source father
● Household
· direct · ~0.92
Mother
Eulah Lyons
b. ~1891
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Margaret Lyons
Daughter · 1940 · age 21 · b. ~1919 · Illinois
★ You are viewing this record
Sibling
Edward Lyons
Sibling · 1940 · age 19
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 — Champaign-County, Illinois
Open full size
1940 US Federal Census — Champaign-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00765-00352)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Arlo B. Malinsky | 39 | Head | Wholesale Oil & Flowers | Illinois |
| 42 | Beulah Malinsky | 25 | Wife | Wholesale Oil & Flowers | Illinois |
| 43 | Robert Grogan | 27 | Head | State | Illinois |
| 44 | Jean D. Grogan | 26 | Wife | — | Illinois |
| 45 | Thomas E. Lyons | 49 | Head | Private Practice | Illinois |
| 46 | Eulah Lyons | 49 | Wife | Country Club | Illinois |
| 47 | Margaret Lyons THIS PERSON | 21 | Daughter | — | Illinois |
| 48 | Edward Lyons | 19 | Son | — | Illinois |
| 49 | Paul W. Cruickshank | 38 | Head | University | Illinois |
| 50 | Hattie M. Cruickshank | 38 | Wife | Utility | Illinois |
| 51 | Eva Drake | 55 | Aunt | — | Illinois |
| 52 | I. M. Bilderback | 66 | Head | Auto Finance Comp. | Indiana |
| 53 | Cella Bilderback | 65 | Wife | — | Indiana |
| 54 | Charles Dutemann | 39 | Head | University | Colorado |
| 55 | Eleanor Dutemann | 37 | Wife | — | Illinois |
| 56 | Donald Dutemann | 8 | Son | — | Colorado |
| 57 | David Dutemann | 8 | Son | — | Colorado |
| 58 | Joseph H. Bell | 85 | Head | Agriculture | Kentucky |
| 59 | Kate Bell | 75 | Wife | — | Illinois |
| 60 | Charles L. Pier | 62 | Head | Church | Illinois |
| 61 | Florence H. Pier | 60 | Wife | — | Indiana |
| 62 | Herbert Woodrow | 57 | Head | University | Ohio |
| 63 | Katherine Woodrow | 47 | Wife | — | Oregon |
| 64 | Nelson Shild Philip | 49 | Head | Soy Bean Processing Plant | Iowa |
| 65 | Iva Philip | 48 | Wife | — | Illinois |
| 66 | Shirley Anne Philip | 14 | Daughter | — | Illinois |
| 67 | Max G. Hoagland | 35 | Head | Public Utility | Illinois |
| 68 | Florence Hoagland | 35 | Wife | — | Michigan |
| 69 | John Hoagland | 8 | Son | — | Illinois |
| 70 | Alonzo Weeks | 65 | Head | Life Insurance | Illinois |
| 71 | Elizabeth Weeks | 37 | Wife | Secretary | Illinois |
| 72 | Elizabeth Kersink | 75 | Head | — | New York |
| 73 | Wilhelmine Johnson | 55 | Daughter | — | Illinois |
| 74 | — | None | — | — | — |
| 75 | Edward E. Stafford | 42 | Head | University | Illinois |
| 76 | Mae Stafford | 40 | Wife | — | Illinois |
| 77 | Daughter Stafford | 12 | Daughter | — | Illinois |
| 78 | Vinton C. Clifford | 55 | Head | Drafting Eq. | Illinois |
| 79 | Clara Clifford | 45 | Wife | — | Illinois |
| 80 | Ruth Cass Clifford | 15 | Daughter | — | Illinois |
Pedigree Summary
Margaret + 1 sibling
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)