MD
Mary Driscoll — 1940 US Census Record
Model Tree available1940 United States Federal Census · Dubuque-County, Iowa
Our Model Tree links this Mary Driscoll across the 1920, 1930 and 1940 US Censuses in Dubuque-County, Iowa (XGBoost, ~Confirmed), with identified parents William & Agnes — first a daughter (b.~1919), then head of a 7-person household.
Age 21
b. ~1919
Female
Daughter
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Dubuque-County, Iowa |
| Surname | Driscoll |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Prairie Creek Twp |
| 1935 Residence (County) | Dubuque |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Prairie Creek Twp |
| 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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Driscoll | Daughter | — | 21 | ~1919 |
| Gladyce Driscoll | Daughter | — | 31 | ~1909 |
| William Driscoll | Head | — | 65 | ~1875 |
| Clarence Driscoll | Son | — | 27 | ~1913 |
| Francis Driscoll | Son | — | 29 | ~1911 |
| Harold Driscoll | Son | — | 25 | ~1915 |
| Agnes Driscoll | Spouse | — | 63 | ~1877 |
Census Appearances
1920
Dubuque, Iowa
Daughter, age 1
Dubuque, Iowa · implied b. ~1919 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Driscoll |
| Given Name | Marie |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Dubuque, Iowa
Daughter, age 11
Dubuque, Iowa · implied b. ~1919 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Driscoll |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Dubuque-County, Iowa
Daughter, age 21
Dubuque-County, Iowa · implied b. ~1919 — 7 household members
| Surname | Driscoll |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Prairie Creek Twp |
| 1935 Residence (County) | Dubuque |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 William Driscoll (~0.92 confidence) and mother Agnes Driscoll (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Driscoll
b. ~1875
Source father
● Household
· direct · ~0.92
Mother
Agnes Driscoll
b. ~1877
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Driscoll
Daughter · 1940 · age 21 · b. ~1919 · Iowa
★ You are viewing this record
Sibling
Gladyce Driscoll
Sibling · 1940 · age 31
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Clarence Driscoll
Sibling · 1940 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harold Driscoll
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Francis Driscoll
Sibling · 1940 · age 29
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 — Dubuque-County, Iowa
Open full size
1940 US Federal Census — Dubuque-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01159-00621)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Raymond Turnis | 28 | Son | Farmer | Iowa |
| 2 | Mary Turnis | 26 | Daughter | — | Iowa |
| 3 | Ann Joyce Turnis | 2 | Granddaughter | — | Iowa |
| 4 | Stephen Turnis | 1 | Grandson | — | Iowa |
| 5 | Mary Deiner | 21 | Hired girl | Maid | Iowa |
| 6 | Edward Deiner | 19 | Hired hand | Farm Laborer | Iowa |
| 7 | Anthony Kerper | 56 | Head | Farmer | Iowa |
| 8 | Christina Kerper | 53 | Wife | — | Iowa |
| 9 | Howard Kerper | 15 | Son | Farm Laborer | Iowa |
| 10 | Leo Schuster | 37 | Hired hand | Farm Laborer | Iowa |
| 11 | Joseph Thevel | 33 | Head | Farmer | Iowa |
| 12 | Delores Thevel | 27 | Wife | — | Iowa |
| 13 | Lois Thevel | 4 | Daughter | — | Iowa |
| 14 | Celia Thevel | 3 | Daughter | — | Iowa |
| 15 | Clarence Weber | 18 | Hired hand | Farm Laborer | S. Dakota |
| 16 | William Driscoll | 65 | Head | Farmer | Iowa |
| 17 | Agnes Driscoll | 63 | Wife | — | Iowa |
| 18 | Francis Driscoll | 29 | Son | Road Maintenance | Iowa |
| 19 | Gladyce Driscoll | 31 | Daughter | — | Iowa |
| 20 | Clarence Driscoll | 27 | Son | Farm Laborer | Iowa |
| 21 | Harold Driscoll | 25 | Son | Farm Laborer | Iowa |
| 22 | Mary Driscoll THIS PERSON | 21 | Daughter | — | Iowa |
| 23 | Joseph Devine | 73 | Head | Farmer | Iowa |
| 24 | Jenny Devine | 55 | Wife | — | Iowa |
| 25 | Le Roy Devine | 24 | Son | Farm Laborer | Iowa |
| 26 | Annie Halligan | 57 | Head | Farmer | Iowa |
| 27 | Daniel Halligan | 18 | Son | Farm Laborer | Iowa |
| 28 | Joseph Halligan | 16 | Son | Farm Laborer | Iowa |
| 29 | Peter Sting | 31 | Head | Farmer | Iowa |
| 30 | Clara Sting | 25 | Wife | — | Iowa |
| 31 | Gerald Sting | 3 | Son | — | Iowa |
| 32 | James Sting | 1 | Son | — | Iowa |
| 33 | Louis Donahue | 16 | Hired hand | Farm Laborer | Iowa |
| 34 | Frank Ronek | 52 | Head | Farmer | Iowa |
| 35 | Anna Ronek | 48 | Wife | — | Iowa |
| 36 | James Ronek | 19 | Son | Farm Laborer | Iowa |
| 37 | Raymond Recker | 32 | Head | Farmer | Iowa |
| 38 | Celia Recker | 33 | Wife | — | Iowa |
| 39 | Rosemary Recker | 6 | Daughter | — | Iowa |
| 40 | Duane Recker | 3 | Son | — | Iowa |
Related Census Records
Pedigree Summary
Mary + 4 siblings
Gen 1 · 2 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)