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Mary Fitzpatrick — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Winnebago-County, Illinois
Our Model Tree links this Mary Fitzpatrick across the 1920, 1930 and 1940 US Censuses in Winnebago-County, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1882), then head of a 5-person household.
Age 58
b. ~1882
Female
Spouse
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Winnebago-County, Illinois |
| Surname | Fitzpatrick |
| Given Name | Mary H. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 58 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Rockford City |
| 1935 Residence (County) | Winnebago |
| Additional Details | |
| Highest Grade | H-2 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Rockford City |
| Est. Birth Year | ~1882 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Marie Fitzpatrick | Daughter | — | 15 | ~1925 |
| Adelia Fitzpatrick | Daughter | — | 27 | ~1913 |
| Regina Fitzpatrick | Daughter | — | 21 | ~1919 |
| James Fitzpatrick | Head | — | 58 | ~1882 |
| Mary Fitzpatrick | Spouse | — | 58 | ~1882 |
Census Appearances
1920
Winnebago, Illinois
Spouse, age 38
Winnebago, Illinois · implied b. ~1882 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Fitzpatrick |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Illinois |
| Father's Birthplace | New York |
| Mother's Birthplace | Illinois |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Winnebago, Illinois
Spouse, age 48
Winnebago, Illinois · implied b. ~1882 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Fitzpatrick |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 24 |
| Father's Birthplace | New York |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Winnebago-County, Illinois
Spouse, age 58
Winnebago-County, Illinois · implied b. ~1882 — 5 household members
| Surname | Fitzpatrick |
| Given Name | Mary H. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 58 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Rockford City |
| 1935 Residence (County) | Winnebago |
| Highest Grade | H-2 |
| 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.
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This person
Anchor record
Mary Fitzpatrick
Spouse · 1940 · age 58 · b. ~1882 · 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 — Winnebago-County, Illinois
Open full size
1940 US Federal Census — Winnebago-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00913-01064)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | James Fitzpatrick | 58 | Head | Inspector | Illinois |
| 2 | Mary H. Fitzpatrick THIS PERSON | 58 | Wife | — | Illinois |
| 3 | Adelia G. Fitzpatrick | 27 | Daughter | Office Manager | Illinois |
| 4 | Regina Fitzpatrick | 21 | Daughter | Assembler | Illinois |
| 5 | Marie Fitzpatrick | 15 | Daughter | — | Illinois |
| 6 | Oscar Fisher | 57 | Head | Operator | Illinois |
| 7 | Emma Fisher | 57 | Wife | — | Iowa |
| 8 | Geraldine Fisher | 30 | Daughter | Typist | Illinois |
| 9 | Randall Fisher | 28 | Son | Truck Driver | Illinois |
| 10 | Lois Fisher | 29 | Daughter | Bookkeeper | Illinois |
| 11 | Kenneth R. Weaver | 39 | Head | Punch Press Operator | Illinois |
| 12 | Theresa R. Weaver | 36 | Wife | — | Wisconsin |
| 13 | Virginia Weaver | 16 | Daughter | — | Wisconsin |
| 14 | Robert Weaver | 14 | Son | — | Illinois |
| 15 | Marjorie Weaver | 13 | Daughter | — | Illinois |
| 16 | Curtis Weaver | 11 | Son | — | Illinois |
| 17 | Alvin R. Weeks | 43 | Head | Die Maker | Illinois |
| 18 | Jean Weeks | 18 | Sister | Inspector | Illinois |
| 19 | Frank Petter | 42 | Head | Packer | Iowa |
| 20 | Julia Petter | 39 | Wife | Packer | Wisconsin |
| 21 | Doris Petter | 13 | Daughter | — | Illinois |
| 22 | George Petter | 7 | Son | — | Illinois |
| 23 | Ruth Jewett | 44 | Head | Teacher | Illinois |
| 24 | Lewis Jewett | 15 | Son | — | Wisconsin |
| 25 | Charles R. Parker | 48 | Head | Salesman | Illinois |
| 26 | Lillian Parker | 52 | Wife | — | Illinois |
| 27 | Lena L. D. Baker | 71 | Head | — | Illinois |
| 28 | Oscar Lundby | 41 | Head | Moulder | Wisconsin |
| 29 | Helma Lundby | 39 | Wife | Sales Lady | Wisconsin |
| 30 | Romana M. Lundby | 19 | Daughter | — | Wisconsin |
| 31 | Karl Lundby | 12 | Son | — | Wisconsin |
| 32 | Edwin Montgomery | 36 | Head | Repairman | Missouri |
| 33 | Nellie Montgomery | 33 | Wife | — | Illinois |
| 34 | Francis Murray | 32 | Lodger | Watchmaker | Iowa |
| 35 | Norton Burt | 44 | Head | Office Clerk | Illinois |
| 36 | Marie Burt | 38 | Wife | — | Kansas |
| 37 | Bette Burt | 18 | Daughter | — | Illinois |
| 38 | William Burt | 15 | Son | — | Iowa |
| 39 | Jacob X. Collin | 47 | Head | Woodworker | England |
| 40 | Rose Collin | 47 | Wife | — | Illinois |
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)