MF
Mary Fowler — 1940 US Census Record
Model Tree available1940 United States Federal Census · Winnebago-County, Illinois
Our Model Tree links this Mary Fowler across the 1920, 1930 and 1940 US Censuses in Winnebago-County, Illinois (XGBoost, ~Confirmed), with identified parents Richard & Richard — first a daughter (b.~1919), then head of a 3-person household.
Age 21
b. ~1919
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Winnebago-County, Illinois |
| Surname | Fowler |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Rockford |
| 1935 Residence (County) | Winnebago |
| Additional Details | |
| Occupation | Stenographer |
| Industry | General retail store |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 651 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Stenographer |
| Township / Ward | Rockford |
| 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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Fowler | Daughter | — | 21 | ~1919 |
| Richard Fowler | Head | — | 53 | ~1887 |
| Clara Fowler | Spouse | — | 52 | ~1888 |
Census Appearances
1920
Winnebago, Illinois
Daughter, age
Winnebago, Illinois · implied b. ~1920 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Fowler |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Wisconsin |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Winnebago, Illinois
Daughter, age 11
Winnebago, Illinois · implied b. ~1919 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Fowler |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Wisconsin |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Winnebago-County, Illinois
Daughter, age 21
Winnebago-County, Illinois · implied b. ~1919 — 3 household members
| Surname | Fowler |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Rockford |
| 1935 Residence (County) | Winnebago |
| Occupation | Stenographer |
| Industry | General retail store |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 651 |
| 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 Fowler across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Richard Fowler (~0.92 confidence) and father Richard Fowler (~0.92 confidence) and mother Clara Fowler (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Richard Fowler
b. ~1887
Source father
● Household
· direct · ~0.92
Father
Richard Fowler
b. ~1888
Source father
● Household
· direct · ~0.92
Mother
Clara Fowler
b. ~1888
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Fowler
Daughter · 1940 · age 21 · b. ~1919 · 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-t0627-00912-00523)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Mario Locarno | 32 | Head | Repair And Operator | Italy |
| 42 | Sarah Locarno | 24 | Wife | Teacher | Michigan |
| 43 | Russell W. Rupp | 32 | Head | Proprietor | Illinois |
| 44 | Carol O. Rupp | 30 | Wife | — | Illinois |
| 45 | Patricia Rupp | 8 | Daughter | — | Illinois |
| 46 | Thomas Rupp | 1 | Son | — | Illinois |
| 47 | Nancy Lou Rupp | 0 | Daughter | — | Illinois |
| 48 | H. Jay Bates | 38 | Head | Set Up Man | N. Dakota |
| 49 | E. Bates | 35 | Wife | — | Wisconsin |
| 50 | Gerald Lee Bates | 5 | Son | — | Illinois |
| 51 | Doris Ann Bates | 2 | Daughter | — | Illinois |
| 52 | Harold R. Peterson | 43 | Head | Relief Man | Illinois |
| 53 | Della P. Peterson | 41 | Wife | — | Illinois |
| 54 | Sarah Milan | 74 | Mother-in-law | — | Illinois |
| 55 | Francis Milan | 39 | Brother-in-law | Laborer Wpa | Illinois |
| 56 | Earl L. Herman | 25 | Head | Buffer | N. Dakota |
| 57 | Jean Mae Herman | 18 | Wife | Machine Operator | Illinois |
| 58 | Arvid A. Lundell | 31 | Head | Lock Assembler | Sweden |
| 59 | Selma Lundell | 32 | Wife | Inspector | Wisconsin |
| 60 | Harry W. Colver | 60 | Head | Inspector | Pennsylvania |
| 61 | Bessie Colver | 54 | Wife | — | Illinois |
| 62 | Winifred Colver | 31 | Daughter | Teacher | Illinois |
| 63 | John Colver | 25 | Son | Teacher | Illinois |
| 64 | Betty Lou Colver | 19 | Daughter | — | Illinois |
| 65 | Howard Stromquist | 25 | Lodger | Draftsman | Illinois |
| 66 | James A. Mattingly | 39 | Head | Mechanic | Indiana |
| 67 | Katherine E. Mattingly | 38 | Wife | — | Illinois |
| 68 | Helen Mattingly | 17 | Daughter | — | Illinois |
| 69 | Patricia Mattingly | 15 | Daughter | — | Illinois |
| 70 | Eileen Mattingly | 12 | Daughter | — | Illinois |
| 71 | Chas. Locaras | 31 | Head | Truck Driver | Italy |
| 72 | Madeline Locaras | 24 | Wife | Hdkf. Mangler | Illinois |
| 73 | Janice Locaras | 2 | Daughter | — | Illinois |
| 74 | Richard Fowler | 53 | Head | — | Illinois |
| 75 | Clara Fowler | 52 | Wife | — | Wisconsin |
| 76 | Mary Fowler THIS PERSON | 21 | Daughter | Stenographer | Illinois |
| 77 | George D. Smith | 70 | Head | — | Iowa |
| 78 | Elizabeth Smith | 58 | Wife | — | Illinois |
| 79 | Marie M. Renaud | 81 | Head | — | Wisconsin |
| 80 | Viola M. Renaud | 54 | Daughter | Classified Ad Writer | 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)