MY
Mary York — 1940 US Census Record
Model Tree available1940 United States Federal Census · White-County, Illinois
Our Model Tree links this Mary York across the 1920, 1930 and 1940 US Censuses in White-County, Illinois (XGBoost, ~Confirmed), with identified parents Franklin & George — first a daughter (b.~1913), then head of a 4-person household.
Age 27
b. ~1913
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | White-County, Illinois |
| Surname | York |
| Given Name | Mary Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | R |
| 1935 Residence (County) | White |
| Additional Details | |
| Highest Grade | Hs 4 |
| 1935 Residence | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Emma Township |
| Est. Birth Year | ~1913 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| George York | Head | — | 66 | ~1874 |
| Ernest Morrill | Son | — | 20 | ~1920 |
| Mary York | Daughter | — | 27 | ~1913 |
| Affie York | Spouse | — | 62 | ~1878 |
Census Appearances
1920
White, Illinois
Daughter, age 9
White, Illinois · implied b. ~1911 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | York |
| Given Name | Mabel M |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
White, Illinois
Daughter, age 17
White, Illinois · implied b. ~1913 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | York |
| Given Name | Mabel S |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
White-County, Illinois
Daughter, age 27
White-County, Illinois · implied b. ~1913 — 4 household members
| Surname | York |
| Given Name | Mary Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | R |
| 1935 Residence (County) | White |
| Highest Grade | Hs 4 |
| 1935 Residence | Illinois |
| 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 Mary York across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Franklin York (~0.92 confidence) and father George York (~0.92 confidence) and mother Affie York (~0.92 confidence) and mother Olia York (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Franklin York
b. ~1879
Source father
● Household
· direct · ~0.92
Father
George York
b. ~1874
Source father
● Household
· direct · ~0.92
Mother
Affie York
b. ~1878
Source mother
● Household
· direct · ~0.92
Mother
Olia York
b. ~1871
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary York
Daughter · 1940 · age 27 · b. ~1913 · Illinois
★ You are viewing this record
Sibling
Ernest Morrill
Sibling · 1940 · age 20
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 — White-County, Illinois
Open full size
1940 US Federal Census — White-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00904-00229)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Joseph Gravelat|Gravelad | 30 | Head | Farmer | Illinois |
| 2 | Margaret Gravelat|Gravelad | 26 | Wife | — | Illinois |
| 3 | Wilma Gravelat|Gravelad | 6 | Daughter | — | Illinois |
| 4 | Jackie Gravelat|Gravelad | 5 | Son | — | Illinois |
| 5 | Joseph Jr Gravelat|Gravelad | 3 | Son | — | Illinois |
| 6 | Anna M Gravelat|Gravelad | 1 | Daughter | — | Illinois |
| 7 | James Stephens | 8 | Stepson | — | Illinois |
| 8 | Edward Walls | 58 | Head | Farm Labour | Illinois |
| 9 | Lenard Walls | 29 | Son | Farm Labour | Illinois |
| 10 | Emma G Walls | 26 | Daughter | — | Illinois |
| 11 | Lillian F Walls | 5 | Granddaughter | — | Illinois |
| 12 | Walter L Clark | 64 | Head | Farmer | Ohio |
| 13 | Evelyn J Clark | 59 | Wife | — | Illinois |
| 14 | Allen W Ninness | 25 | Lodger | School Teacher | Illinois |
| 15 | George W York | 66 | Head | Farmer | Indiana |
| 16 | Affie York | 62 | Wife | — | Illinois |
| 17 | Mary Margaret York THIS PERSON | 27 | Daughter | — | Illinois |
| 18 | Ernest Oct Morrill | 20 | Son | — | Illinois |
| 19 | Robert S Richard | 35 | Head | Farmer | Illinois |
| 20 | Lorene Richard | 25 | Wife | — | Illinois |
| 21 | James O Richard | 9 | Son | — | Illinois |
| 22 | Robert S Jr Richard | 7 | Son | — | Illinois |
| 23 | Guy L Johnson | 44 | Head | Farmer | Illinois |
| 24 | Nigel Johnson | 44 | Wife | — | Illinois |
| 25 | Dorothy J Johnson | 15 | Daughter | — | Illinois |
| 26 | Grover Hines | 11 | Son | — | Illinois |
| 27 | Samuel B Allen | 52 | Head | Farmer | Illinois |
| 28 | Mattie M Allen | 34 | Wife | — | Arkansas |
| 29 | James B Allen | 4 | Son | — | Illinois |
| 30 | Kathryn R Allen | 2 | Daughter | — | Illinois |
| 31 | Georgia R Allen | 1 | Daughter | — | Illinois |
| 32 | William L Allen | 0 | Son | — | Illinois |
| 33 | Ernest Cleveland | 37 | Head | — | Illinois |
| 34 | Reba Cleveland | 30 | Wife | — | Illinois |
| 35 | Mary A Cleveland | 5 | Daughter | — | Illinois |
| 36 | Lilly Belle Burris | 29 | Head | Seamstress | Illinois |
| 37 | Frances Burris | 8 | Daughter | — | Illinois |
| 38 | Billy Arnold Burris | 5 | Son | — | Illinois |
| 39 | Norma Jean Burris | 3 | Daughter | — | Illinois |
| 40 | Alfred Parks | 25 | Head | Farm Labourer | Missouri |
Pedigree Summary
Mary + 1 sibling
Gen 1 · 4 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)