MR
Mary Reese — 1940 US Census Record
Model Tree available1940 United States Federal Census · St.-Clair-County, Illinois
Our Model Tree links this Mary Reese across the 1920, 1930 and 1940 US Censuses in St.-Clair-County, Illinois (XGBoost, ~Confirmed), with identified parents Thomas & Thos — first a daughter (b.~1918), then head of a 4-person household.
Age 22
b. ~1918
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Clair-County, Illinois |
| Surname | Reese |
| Given Name | Mary J. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | East St. Louis |
| 1935 Residence (County) | St. Clair |
| Additional Details | |
| Occupation | Teacher |
| Industry | Public School |
| Class of Worker | Gov |
| Hours Worked | 36 |
| Income (1939) | 349 |
| Highest Grade | C 2 |
| 1935 Residence | Same House |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Teacher |
| Township / Ward | East St Louis |
| 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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Reese | Daughter | — | 22 | ~1918 |
| Helen Reese | Daughter | — | 19 | ~1921 |
| Thomas Reese | Head | — | 58 | ~1882 |
| Effie Reese | Spouse | — | 49 | ~1891 |
Census Appearances
1920
St Clair, …
Daughter, age 1
St Clair, Illinois · implied b. ~1919 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Reese |
| Given Name | Mary J. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Kansas |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
St Clair, …
Daughter, age 11
St Clair, Illinois · implied b. ~1919 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Reese |
| Given Name | Mary J. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Kansas |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
St.-Clair-County, Illinois
Daughter, age 22
St.-Clair-County, Illinois · implied b. ~1918 — 4 household members
| Surname | Reese |
| Given Name | Mary J. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | East St. Louis |
| 1935 Residence (County) | St. Clair |
| Occupation | Teacher |
| Industry | Public School |
| Class of Worker | Gov |
| Hours Worked | 36 |
| Income (1939) | 349 |
| 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 Mary Reese across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Thomas Reese (~0.92 confidence) and father Thos Reese (~0.92 confidence) and mother Effie Reese (~0.92 confidence) and mother Effie Reese (~0.92 confidence) and mother Effie Reese (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Thomas Reese
b. ~1885
Source father
● Household
· direct · ~0.92
Father
Thos Reese
b. ~1886
Source father
● Household
· direct · ~0.92
Mother
Effie Reese
b. ~1891
Source mother
● Household
· direct · ~0.92
Mother
Effie Reese
b. ~1892
Source mother
● Household
· direct · ~0.92
Mother
Effie Reese
b. ~1901
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Reese
Daughter · 1940 · age 22 · b. ~1918 · Illinois
★ You are viewing this record
Sibling
Helen Reese
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 — St.-Clair-County, Illinois
Open full size
1940 US Federal Census — St.-Clair-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00881-00849)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Agnes Jost | 56 | Wife | — | Missouri |
| 42 | Boyd Kusselman | 55 | Head | Owner Manager | Ohio |
| 43 | Susan Kusselman | 50 | Wife | — | Missouri |
| 44 | Robert E. Kusselman | 24 | Son | Stenographer | Illinois |
| 45 | Joseph Kusselman | 11 | Son | — | Illinois |
| 46 | Joseph Purcell | 66 | Head | — | Missouri |
| 47 | Mary Purcell | 64 | Wife | — | Illinois |
| 48 | Catherine Purcell | 35 | Daughter | Statistical Clerk | Missouri |
| 49 | Mary Purcell | 29 | Daughter | Stenographer | Missouri |
| 50 | Mr. A. Nichols | 38 | Son-in-law | Electrician | Pennsylvania |
| 51 | Elizabeth Nichols | 37 | Daughter | Stenographer | Missouri |
| 52 | Mary Nichols | 15 | Granddaughter | — | Illinois |
| 53 | Kate Mcmahon | 49 | Head | Rail Clerk | Illinois |
| 54 | Mayme Sister Mcmahon | 47 | Sister | Record Clerk | Illinois |
| 55 | Elizabeth Sister Mcmahon | 45 | Sister | — | Illinois |
| 56 | Joseph H. Mccoy | 30 | Head | Laborer | Illinois |
| 57 | Mary E. Mccoy | 26 | Wife | — | Illinois |
| 58 | John H. Mccoy | 5 | Son | — | Illinois |
| 59 | Mary Catherine Mccoy | 1 | Daughter | — | Illinois |
| 60 | Elizabeth Mccoy | 49 | Mother-in-law | — | Illinois |
| 61 | John Mccoy | 26 | Nephew | Laborer | Illinois |
| 62 | Catherine Mccoy | 18 | Niece | — | Illinois |
| 63 | Le Roy Mccoy | 15 | Nephew | — | Ohio |
| 64 | Harold Louis Mccoy | 8 | Nephew | — | Illinois |
| 65 | Joseph Hoffman | 74 | Boarder | — | New York |
| 66 | Mary Ross | 72 | Head | — | Missouri |
| 67 | Frank Ross | 46 | Son | Timekeeper | Illinois |
| 68 | Amelia Ross | 33 | Daughter | Record Clerk | Illinois |
| 69 | Harold Ross | 37 | Son | Record Clerk | Illinois |
| 70 | William Ross | 7 | Son | — | Illinois |
| 71 | Harry Tannenbaum | 65 | Head | — | Russia |
| 72 | Pearl Tannenbaum | 65 | Wife | — | Russia |
| 73 | Fannie Tannenbaum | 34 | Daughter | Interviewer | Russia |
| 74 | Thomas G. Reese | 58 | Head | Switchman | Illinois |
| 75 | Effie Reese | 49 | Wife | — | Kansas |
| 76 | Mary J. Reese THIS PERSON | 22 | Daughter | Teacher | Illinois |
| 77 | Helen Reese | 19 | Daughter | Typist | Illinois |
| 78 | John Harsey | 58 | Head | Cashier | Illinois |
| 79 | Lilly Harsey | 56 | Wife | — | Nebraska |
| 80 | Marian Harsey | 26 | Daughter | Vocational Director | Illinois |
Pedigree Summary
Mary + 1 sibling
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)