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Mary Byrne — 1940 US Census Record
Model Tree available1940 United States Federal Census · Stark-County, Ohio
Our Model Tree links this Mary Byrne across the 1920, 1930 and 1940 US Censuses in Stark-County, Ohio (XGBoost, ~Confirmed), with identified parents Emma & James — first a daughter (b.~1917), then head of a 10-person household.
Age 23
b. ~1917
Female
Daughter
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Stark-County, Ohio |
| Surname | Byrne |
| Given Name | Mary L. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Canton City |
| 1935 Residence (County) | Stark |
| Additional Details | |
| Industry | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same house |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Township / Ward | Canton City |
| Est. Birth Year | ~1917 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Beatrice Decorpus | Daughter | — | 46 | ~1894 |
| Pauline Freeman | Daughter | — | 44 | ~1896 |
| Mary Byrne | Daughter | — | 23 | ~1917 |
| Mary Byrne | Daughter | — | 54 | ~1886 |
| Patricia Freeman | Daughter | — | 16 | ~1924 |
| Emma Decorpus | Head | — | 70 | ~1870 |
| James Byrne | Other | — | 57 | ~1883 |
| Ernest Freeman | Other | — | 45 | ~1895 |
| Richard Freeman | Son | — | 15 | ~1925 |
| James Byrne | Son | — | 23 | ~1917 |
Census Appearances
1920
Stark, Ohio
Daughter, age 3
Stark, Ohio · implied b. ~1917 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Byrne |
| Given Name | Mary Louise |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Can Read | No |
| Can Write | No |
| Speaks English | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Stark, Ohio
Daughter, age 13
Stark, Ohio · implied b. ~1917 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Byrne |
| Given Name | Mary J. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Stark-County, Ohio
Daughter, age 23
Stark-County, Ohio · implied b. ~1917 — 10 household members
| Surname | Byrne |
| Given Name | Mary L. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Canton City |
| 1935 Residence (County) | Stark |
| Industry | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same house |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
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 Byrne across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Emma Decorpus (~0.92 confidence) and father James Byrne (~0.92 confidence) and father James Byrne (~0.92 confidence) and mother Mary Byrne (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Emma Decorpus
b. ~1870
Source mother
● Household
· direct · ~0.92
Father
James Byrne
b. ~1883
Source father
● Household
· direct · ~0.92
Father
James Byrne
b. ~1883
Source father
● Household
· direct · ~0.92
Mother
Mary Byrne
b. ~1886
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Byrne
Daughter · 1940 · age 23 · b. ~1917 · Ohio
★ You are viewing this record
Sibling
James Byrne
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Byrne
Sibling · 1940 · age 54
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Beatrice Decorpus
Sibling · 1940 · age 46
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Pauline Freeman
Sibling · 1940 · age 44
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Freeman
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patricia Freeman
Sibling · 1940 · age 16
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 — Stark-County, Ohio
Open full size
1940 US Federal Census — Stark-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03186-00599)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Sandra S. Goudy | 1 | Daughter | — | Ohio |
| 2 | Harry E. Huston | 58 | Head | Traveling Salesman | Pennsylvania |
| 3 | Stella M. Huston | 55 | Wife | — | Pennsylvania |
| 4 | Harry E. Jr. Huston | 25 | Son | Salesman | Pennsylvania |
| 5 | Lois S. Huston | 21 | Daughter | Teacher | Pennsylvania |
| 6 | Mable H. Bender | 19 | Servant | Servant | Maryland |
| 7 | Emma Decorpus | 70 | Head | — | Ohio |
| 8 | Beatrice Decorpus | 46 | Daughter | Stenographer | Ohio |
| 9 | James A. Byrne | 57 | Son-in-law | Production Manager | Ohio |
| 10 | Mary Byrne | 54 | Daughter | — | Ohio |
| 11 | James J. Byrne | 23 | Son | Social Welfare | Ohio |
| 12 | Mary L. Byrne THIS PERSON | 23 | Daughter | — | Ohio |
| 13 | Ernest Freeman | 45 | Son-in-law | — | Ohio |
| 14 | Pauline Freeman | 44 | Daughter | — | Ohio |
| 15 | Patricia Freeman | 16 | Daughter | — | Ohio |
| 16 | Richard Freeman | 15 | Son | — | Ohio |
| 17 | Richard C. Baker | 44 | Head | Store Manager | Ohio |
| 18 | Josephine C. Baker | 44 | Wife | — | Ohio |
| 19 | Richard T. Baker | 15 | Son | — | Ohio |
| 20 | Edwin H. Dickerson | 42 | Head | Treasurer | Ohio |
| 21 | Helen J. Dickerson | 36 | Wife | — | Ohio |
| 22 | Ned Dickerson | 14 | Son | — | Ohio |
| 23 | Marcia Dickerson | 7 | Daughter | — | Ohio |
| 24 | Edna Shirey | 18 | Servant | Servant | Pennsylvania |
| 25 | Herbert J. Khory | 56 | Head | President | Ohio |
| 26 | Lenore M. Khory | 51 | Wife | — | Indiana |
| 27 | John J. Khory | 20 | Son | — | Ohio |
| 28 | Left For Mail | None | but | — | — |
| 29 | E. Sargent Jr. Hoopes | 33 | Head | Assistant Supt Steel Tube | Pennsylvania |
| 30 | Nan Page Hoopes | 30 | Wife | — | Connecticut |
| 31 | Mary May Hoopes | 7 | Daughter | — | Pennsylvania |
| 32 | Page Hoopes | 5 | Son | — | Ohio |
| 33 | Sargent Hoopes | 3 | Son | — | Ohio |
| 34 | Durrdson Hoopes | 1 | Son | — | Ohio |
| 35 | Dolly Watkins | 36 | Servant | Servant | Tennessee |
| 36 | Adelaide Dewitt | 30 | Servant | Servant | South Carolina |
| 37 | Charles Foreman | 65 | Head | Potter | Kansas |
| 38 | Mary C. Foreman | 62 | Wife | — | Ohio |
| 39 | Goldie Wolf | 57 | Servant | Servant | Ohio |
| 40 | Edward A. Mcdowell | 30 | Head | Salesman | New York |
Related Census Records
Pedigree Summary
Mary + 6 siblings
Gen 1 · 4 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)