MD
Mary Driscoll — 1940 US Census Record
Model Tree available1940 United States Federal Census · St.-Clair-County, Illinois
Our Model Tree links this Mary Driscoll across the 1920, 1930 and 1940 US Censuses in St.-Clair-County, Illinois (XGBoost, ~Confirmed), with identified parents John & Mary — first a daughter (b.~1914), then head of a 2-person household.
Age 26
b. ~1914
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Clair-County, Illinois |
| Surname | Driscoll |
| Given Name | Mary Jane |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| 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 | PW |
| Hours Worked | 35 |
| Income (1939) | 1000 |
| Highest Grade | C-4 |
| 1935 Residence | Same house |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Teacher |
| Township / Ward | East St Louis |
| Est. Birth Year | ~1914 |
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.
2 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Driscoll | Daughter | — | 26 | ~1914 |
| Mary Driscoll | Head | — | 67 | ~1873 |
Census Appearances
1920
St Clair, …
Daughter, age 6
St Clair, Illinois · implied b. ~1914 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Driscoll |
| Given Name | Mary J |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Illinois |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
St Clair, …
Daughter, age 16
St Clair, Illinois · implied b. ~1914 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Driscoll |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
St.-Clair-County, Illinois
Daughter, age 26
St.-Clair-County, Illinois · implied b. ~1914 — 2 household members
| Surname | Driscoll |
| Given Name | Mary Jane |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | East St. Louis |
| 1935 Residence (County) | St. Clair |
| Occupation | Teacher |
| Industry | Public School |
| Class of Worker | PW |
| Hours Worked | 35 |
| Income (1939) | 1000 |
| Highest Grade | C-4 |
| 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 Driscoll across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Driscoll (~0.92 confidence) and mother Mary Driscoll (~0.92 confidence) and mother Mary Driscoll (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Driscoll
b. ~1861
Source father
● Household
· direct · ~0.92
Mother
Mary Driscoll
b. ~1872
Source mother
● Household
· direct · ~0.92
Mother
Mary Driscoll
b. ~1873
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Driscoll
Daughter · 1940 · age 26 · b. ~1914 · 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 — 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-t0627-00881-00696)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mariany R. Crow | 10 | Daughter | — | Illinois |
| 2 | Robert L. Crow | 8 | Son | — | Illinois |
| 3 | Fred H. Miller | 46 | Head | Bus Driver | Missouri |
| 4 | Viola M. Miller | 47 | Wife | — | Missouri |
| 5 | Norman V. Miller | 18 | Son | — | Missouri |
| 6 | Marjorie F. Miller | 14 | Daughter | — | Missouri |
| 7 | Clarence Thousent | 34 | Head | Packer | Illinois |
| 8 | Florence E. Thousent | 29 | Wife | — | Illinois |
| 9 | Shirley M. Thousent | 4 | Daughter | — | Illinois |
| 10 | Joseph H. Behmen | 36 | Head | Patrolman | Illinois |
| 11 | Verna A. Behmen | 34 | Wife | — | Missouri |
| 12 | Earl Behmen | 6 | Son | — | Illinois |
| 13 | Carol Behmen | 1 | Daughter | — | Illinois |
| 14 | Louis O. Tucker | 15 | Foster son | — | Illinois |
| 15 | Neal R. Schneider | 23 | Brother-in-law | Cutter | Illinois |
| 16 | Extra Line | None | — | — | — |
| 17 | Charles J. Brown | 28 | Head | Attendant | Illinois |
| 18 | Bernadine Brown | 24 | Wife | — | Illinois |
| 19 | Eugene C. Brown | 4 | Son | — | Illinois |
| 20 | Terry L. Brown | 0 | Son | — | Illinois |
| 21 | Here Ends Block 21 And Begins Block 28 | None | — | — | — |
| 22 | Leo Clarence Aydt | 37 | Head | Janitor | Illinois |
| 23 | Frieda L. Aydt | 32 | Wife | — | Illinois |
| 24 | Clarence W. Aydt | 3 | Son | — | Illinois |
| 25 | Edward J. Stelling | 46 | Head | Chauffeur | Illinois |
| 26 | Rose J. Stelling | 48 | Wife | — | Illinois |
| 27 | Earl E. Stelling | 15 | Son | — | Illinois |
| 28 | Mary A. Stelling | 13 | Daughter | — | Illinois |
| 29 | Josephine L. Stelling | 11 | Daughter | — | Illinois |
| 30 | Theresa M. Stelling | 8 | Daughter | — | Illinois |
| 31 | Ursula Stelling | 7 | Daughter | — | Illinois |
| 32 | Paul J. Stelling | 4 | Son | — | Illinois |
| 33 | William F. Kritach | 58 | Head | Stock Purchaser | Illinois |
| 34 | Edith B. Kritach | 51 | Wife | — | Missouri |
| 35 | William F. Kritach | 23 | Son | Interne | Illinois |
| 36 | Rita M. Kritach | 19 | Daughter | — | Illinois |
| 37 | Monica L. Kritach | 14 | Daughter | — | Illinois |
| 38 | Anna E. Moose | 48 | Sister-in-law | Office Manager | Missouri |
| 39 | Mary E. Driscoll | 67 | Head | — | Illinois |
| 40 | Mary Jane Driscoll THIS PERSON | 26 | Daughter | Teacher | Illinois |
Pedigree Summary
Mary
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)