MF
Mary Fitzpatrick — 1940 US Census Record
Model Tree available1940 United States Federal Census · Logan-County, Illinois
Our Model Tree links this Mary Fitzpatrick across the 1920, 1930 and 1940 US Censuses in Logan-County, Illinois (XGBoost, ~Confirmed), with identified parents Joseph & Agnes — first a daughter (b.~1919), then head of a 8-person household.
Age 21
b. ~1919
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Logan-County, Illinois |
| Surname | Fitzpatrick |
| Given Name | Mary |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Lincoln city |
| 1935 Residence (County) | Logan |
| Additional Details | |
| Occupation | maid |
| Industry | private home |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 520 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Maid |
| Township / Ward | Lincoln City |
| 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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Fitzpatrick | Daughter | — | 21 | ~1919 |
| Joan Fitzpatrick | Daughter | — | 20 | ~1920 |
| Joseph Fitzpatrick | Head | — | 49 | ~1891 |
| Edward Fitzpatrick | Son | — | 11 | ~1929 |
| Robert Fitzpatrick | Son | — | 8 | ~1932 |
| Martin Fitzpatrick | Son | — | 17 | ~1923 |
| Gregory Fitzpatrick | Son | — | 15 | ~1925 |
| Agnes Fitzpatrick | Spouse | — | 46 | ~1894 |
Census Appearances
1920
Logan, Illinois
Daughter, age 1
Logan, Illinois · implied b. ~1919 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Fitzpatrick |
| Given Name | Mary C. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Logan, Illinois
Daughter, age 11
Logan, Illinois · implied b. ~1919 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Fitzpatrick |
| Given Name | Mary |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Logan-County, Illinois
Daughter, age 21
Logan-County, Illinois · implied b. ~1919 — 8 household members
| Surname | Fitzpatrick |
| Given Name | Mary |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Lincoln city |
| 1935 Residence (County) | Logan |
| Occupation | maid |
| Industry | private home |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 520 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| 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 Fitzpatrick across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Joseph Fitzpatrick (~0.92 confidence) and mother Agnes Fitzpatrick (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Joseph Fitzpatrick
b. ~1891
Source father
● Household
· direct · ~0.92
Mother
Agnes Fitzpatrick
b. ~1894
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Fitzpatrick
Daughter · 1940 · age 21 · b. ~1919 · Illinois
★ You are viewing this record
Sibling
Edward Fitzpatrick
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Fitzpatrick
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gregory Fitzpatrick
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Martin Fitzpatrick
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joan Fitzpatrick
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 — Logan-County, Illinois
Open full size
1940 US Federal Census — Logan-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00838-00148)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Donald Hopp | 16 | son | — | Illinois |
| 42 | Robert Hopp | 14 | son | — | Illinois |
| 43 | Jimmy Hopp | 5 | son | — | Illinois |
| 44 | William Hupcher | 65 | head | Barber | Illinois |
| 45 | Jane S. Hupcher | 68 | wife | — | Illinois |
| 46 | M. Lecory | 68 | uncle | — | Illinois |
| 47 | Jimmy Hall | 13 | grandson | — | Missouri |
| 48 | Andrew Dial | 57 | head | Helper | Kentucky |
| 49 | Lilian Dial | 48 | wife | — | Kentucky |
| 50 | Harry Dial | 31 | son | Rose Grower | Illinois |
| 51 | Harold Dial | 14 | son | — | Illinois |
| 52 | Beverly Dial | 10 | daughter | — | Illinois |
| 53 | Iric Dorman | 79 | father | — | Kentucky |
| 54 | Kate Cameron | 75 | head | — | Illinois |
| 55 | Glenn Cameron | 48 | son | — | Illinois |
| 56 | Ora Smith | 45 | head | Laborer | Illinois |
| 57 | Flo Smith | 42 | wife | — | Illinois |
| 58 | Dacemma Smith | 21 | daughter | Maid | Illinois |
| 59 | Ora Smith | 16 | son | — | Illinois |
| 60 | Fern Smith | 13 | daughter | — | Illinois |
| 61 | Jack Smith | 10 | son | — | Illinois |
| 62 | Joyce Smith | 5 | daughter | — | Illinois |
| 63 | Donald Smith | 1 | son | — | Illinois |
| 64 | Homer Oliver | 39 | head | Laborer | Illinois |
| 65 | Elois Oliver | 35 | wife | — | Illinois |
| 66 | Jo Anne Oliver | 4 | daughter | — | Illinois |
| 67 | Katherine Isaac | 64 | mother | — | Illinois |
| 68 | H. Sturgeon | 76 | head | — | Illinois |
| 69 | Almira Sturgeon | 52 | wife | — | Iowa |
| 70 | Jenny Morris | 70 | lodger | — | Illinois |
| 71 | Joseph Fitzpatrick | 49 | head | Manager | Iowa |
| 72 | Agnes Fitzpatrick | 46 | wife | — | Iowa |
| 73 | Mary Fitzpatrick THIS PERSON | 21 | daughter | Maid | Illinois |
| 74 | Joan Fitzpatrick | 20 | daughter | — | Illinois |
| 75 | Martin Fitzpatrick | 17 | son | — | Illinois |
| 76 | Gregory Fitzpatrick | 15 | son | — | Illinois |
| 77 | Edward Fitzpatrick | 11 | son | — | Illinois |
| 78 | Robert Fitzpatrick | 8 | son | — | Illinois |
| 79 | Andrew Edwards | 60 | head | Painter | Illinois |
| 80 | Maude Edwards | 61 | wife | — | Illinois |
Pedigree Summary
Mary + 5 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)