MR
Mary Ryan — 1940 US Census Record
Model Tree available1940 United States Federal Census · Winnebago-County, Illinois
Our Model Tree links this Mary Ryan across the 1920, 1930 and 1940 US Censuses in Winnebago-County, Illinois (XGBoost, ~Confirmed), with identified parents James & Josephine — first a daughter (b.~1919), then head of a 9-person household.
Age 21
b. ~1919
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Winnebago-County, Illinois |
| Surname | Ryan |
| Given Name | Mary Claire |
| 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 | Bookkeeper |
| Industry | Life Insurance Company |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 840 |
| Highest Grade | H-4 |
| 1935 Residence | Same Place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Bookkeeper |
| 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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Veronica Ryan | Daughter | — | 24 | ~1916 |
| Mary Ryan | Daughter | — | 21 | ~1919 |
| Katherine Ryan | Daughter | — | 22 | ~1918 |
| Margaret Ryan | Daughter | — | 16 | ~1924 |
| James Ryan | Head | — | 56 | ~1884 |
| Donald Ryan | Son | — | 12 | ~1928 |
| Gerald Ryan | Son | — | 19 | ~1921 |
| Eugene Ryan | Son | — | 17 | ~1923 |
| Josephine Ryan | Spouse | — | 52 | ~1888 |
Census Appearances
1920
Winnebago, Illinois
Daughter, age
Winnebago, Illinois · implied b. ~1920 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ryan |
| Given Name | Mary Claire |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | South Dakota |
| Mother's Birthplace | Minnesota |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Winnebago, Illinois
Daughter, age 11
Winnebago, Illinois · implied b. ~1919 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ryan |
| Given Name | Mary Claire |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | South Dakota |
| Mother's Birthplace | Minnesota |
| 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 — 9 household members
| Surname | Ryan |
| Given Name | Mary Claire |
| 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 | Bookkeeper |
| Industry | Life Insurance Company |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 840 |
| Highest Grade | H-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 Ryan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father James Ryan (~0.92 confidence) and mother Josephine Ryan (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Ryan
b. ~1884
Source father
● Household
· direct · ~0.92
Mother
Josephine Ryan
b. ~1888
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Ryan
Daughter · 1940 · age 21 · b. ~1919 · Illinois
★ You are viewing this record
Sibling
Veronica Ryan
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Katherine Ryan
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Ryan
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donald Ryan
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gerald Ryan
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eugene Ryan
Sibling · 1940 · age 17
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 — 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-t0627-00913-00925)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Ann K. Christopherson | 47 | Wife | — | Illinois |
| 42 | Frederick P. Christopherson | 16 | Son | — | Illinois |
| 43 | Robert W. Christopherson | 13 | Son | — | Illinois |
| 44 | John Henry Christopherson | 11 | Son | — | Illinois |
| 45 | Mary Ann Christopherson | 7 | Daughter | — | Illinois |
| 46 | John E. Dirksen | 50 | Head | Power Shovel Operator | Illinois |
| 47 | Gladys M. Dirksen | 42 | Wife | — | Illinois |
| 48 | Lois L. Dirksen | 14 | Daughter | — | Illinois |
| 49 | Shirley J. Murray | 15 | Ward | — | Illinois |
| 50 | Paul A. Honshun | 37 | Head | Lathe Operator | Illinois |
| 51 | Ruth A. Honshun | 32 | Wife | Bookkeeper | Illinois |
| 52 | William H. Long | 23 | Head | Machinist | Iowa |
| 53 | Jean H. Long | 19 | Wife | — | Indiana |
| 54 | Leonard Watson | 43 | Head | Mill Wright | Kentucky |
| 55 | Martha L. Watson | 42 | Wife | — | Wisconsin |
| 56 | Charles R. Watson | 12 | Son | — | Illinois |
| 57 | Lorraine T. Watson | 14 | Daughter | — | Illinois |
| 58 | Eugene L. Watson | 12 | Daughter | — | Illinois |
| 59 | James J. Ryan | 56 | Head | Custodian | South Dakota |
| 60 | Josephine A. Ryan | 52 | Wife | — | Minnesota |
| 61 | Veronica E. Ryan | 24 | Daughter | Inspector | Illinois |
| 62 | Katherine D. Ryan | 22 | Daughter | Cashier | Illinois |
| 63 | Mary Claire Ryan THIS PERSON | 21 | Daughter | Bookkeeper | Illinois |
| 64 | Gerald J. Ryan | 19 | Son | Machine Operator | Illinois |
| 65 | Eugene W. Ryan | 17 | Son | — | Illinois |
| 66 | Margaret G. Ryan | 16 | Daughter | — | Illinois |
| 67 | Donald E. Ryan | 12 | Son | — | Illinois |
| 68 | Joseph H. Hinds | 75 | Head | Driller | England |
| 69 | Michael P. Jacoby | 50 | Head | Painter | Ohio |
| 70 | Cassandra B. Jacoby | 50 | Wife | — | Iowa |
| 71 | Francis L. Haight | 25 | Head | Welder | Illinois |
| 72 | Dale B. Haight | 23 | Wife | Waitress | Illinois |
| 73 | Stanley R. Higgins | 32 | Head | Sales Clerk | Illinois |
| 74 | Grace M. Higgins | 31 | Wife | — | Illinois |
| 75 | Donald E. Higgins | 10 | Son | — | Illinois |
| 76 | Frank M. Gambino | 40 | Head | Salesman | Italy |
| 77 | Marie K. Gambino | 37 | Wife | — | Italy |
| 78 | Mary Frances Gambino | 14 | Daughter | — | Illinois |
| 79 | Joseph F. Gambino | 13 | Son | — | Illinois |
| 80 | Paul M. Gambino | 4 | Son | — | Illinois |
Pedigree Summary
Mary + 6 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)