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Margaret Boyle — 1940 US Census Record
Model Tree available1940 United States Federal Census · Sangamon-County, Illinois
Our Model Tree links this Margaret Boyle across the 1920, 1930 and 1940 US Censuses in Sangamon-County, Illinois (XGBoost, ~Confirmed), with identified parents James & James — first a daughter (b.~1916), then head of a 3-person household.
Age 24
b. ~1916
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Sangamon-County, Illinois |
| Surname | Boyle |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Thayer town |
| 1935 Residence (County) | Sangamon |
| Additional Details | |
| Occupation | School Teacher |
| Industry | Grade School |
| Class of Worker | GW |
| Hours Worked | 35 |
| Income (1939) | 900 |
| Highest Grade | C 2 |
| 1935 Residence | Same House |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Teacher |
| Township / Ward | Thayer Town |
| Est. Birth Year | ~1916 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Margaret Boyle | Daughter | — | 24 | ~1916 |
| James Boyle | Head | — | 54 | ~1886 |
| Mary Boyle | Spouse | — | 53 | ~1887 |
Census Appearances
1920
Sangamon, Illinois
Daughter, age 3
Sangamon, Illinois · implied b. ~1917 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Boyle |
| Given Name | Margaret |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Sangamon, Illinois
Daughter, age 14
Sangamon, Illinois · implied b. ~1916 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Boyle |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Student H.S. |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Veteran | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Sangamon-County, Illinois
Daughter, age 24
Sangamon-County, Illinois · implied b. ~1916 — 3 household members
| Surname | Boyle |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Thayer town |
| 1935 Residence (County) | Sangamon |
| Occupation | School Teacher |
| Industry | Grade School |
| Class of Worker | GW |
| Hours Worked | 35 |
| Income (1939) | 900 |
| Highest Grade | C 2 |
| 1935 Residence | Same House |
| 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 Boyle across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father James Boyle (~0.92 confidence) and father James Boyle (~0.92 confidence) and mother Mary Boyle (~0.92 confidence) and mother Mary Boyle (~0.92 confidence) and mother Mary Boyle (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Boyle
b. ~1886
Source father
● Household
· direct · ~0.92
Father
James Boyle
b. ~1886
Source father
● Household
· direct · ~0.92
Mother
Mary Boyle
b. ~1887
Source mother
● Household
· direct · ~0.92
Mother
Mary Boyle
b. ~1887
Source mother
● Household
· direct · ~0.92
Mother
Mary Boyle
b. ~1887
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Margaret Boyle
Daughter · 1940 · age 24 · b. ~1916 · Illinois
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Sangamon-County, Illinois
Open full size
1940 US Federal Census — Sangamon-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00884-00069)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | James Stewart | 33 | Head | Labor | Scotland |
| 42 | Thelma Stewart | 29 | Wife | — | Kansas |
| 43 | James Jr. Stewart | 10 | Son | — | Illinois |
| 44 | Robin Mae Stewart | 7 | Daughter | — | Illinois |
| 45 | Edward J. Boyle | 35 | Head | Labor | Illinois |
| 46 | Mary Ella Boyle | 30 | Wife | — | Illinois |
| 47 | John Boyle | 2 | Son | — | Illinois |
| 48 | Robert Mccall | 52 | Head | Labor | Illinois |
| 49 | Eliza Mccall | 43 | Wife | — | Illinois |
| 50 | Elda Mccall | 20 | Daughter | Clerical | Illinois |
| 51 | Robert Jr. Mccall | 19 | Son | Clerical | Illinois |
| 52 | Raymond Mccall | 14 | Son | New Worker | Illinois |
| 53 | Clifford Mccall | 10 | Son | — | Illinois |
| 54 | Clifford Johnson | 28 | Head | Labor | Illinois |
| 55 | Helen Johnson | 27 | Wife | — | Illinois |
| 56 | David Johnson | 6 | Son | — | Illinois |
| 57 | Margie Ann Johnson | 4 | Daughter | — | Illinois |
| 58 | Beverly Jane Johnson | 2 | Daughter | — | Illinois |
| 59 | Richard Mettershane | 24 | Head | Labor | Illinois |
| 60 | Juanita Mettershane | 21 | Wife | — | Illinois |
| 61 | Richard Jr. Mettershane | 0 | Son | — | Illinois |
| 62 | Samuel Mettershane | 48 | Head | Labor | Illinois |
| 63 | Isabel Mettershane | 45 | Wife | — | Illinois |
| 64 | Harold Mettershane | 21 | Son | Trapping | Illinois |
| 65 | Joseph Mettershane | 81 | Father | — | England |
| 66 | John E. Dickson | 66 | Head | — | England |
| 67 | John Gardner | 63 | Head | Labor | Scotland |
| 68 | Phraly Gardner | 63 | Wife | Housework | Iowa |
| 69 | Elizabeth Gardner | 26 | Daughter | House Work | Illinois |
| 70 | John Gardner | 25 | Son | Carpenter Helper | Illinois |
| 71 | Ralph Gardner | 22 | Son | Labor | Illinois |
| 72 | John Mertonchik | 67 | Head | Machine Cleaner | Slovakia |
| 73 | Anne Mertonchik | 61 | Wife | — | Slovakia |
| 74 | Mary Anne Mertonchik | 21 | Daughter | Kindergarten Asst. | Illinois |
| 75 | Melva Mertonchik | 17 | Daughter | New Worker | Illinois |
| 76 | James Boyle | 54 | Head | Labor | Illinois |
| 77 | Mary Boyle | 53 | Wife | — | Illinois |
| 78 | Margaret Boyle THIS PERSON | 24 | Daughter | School Teacher | Illinois |
| 79 | Thomas Sestack | 44 | Head | Labor | Slovakia |
| 80 | Helen Sestack | 46 | Wife | — | Slovakia |
Pedigree Summary
Margaret
Gen 1 · 5 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)