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John Mcdonnell — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cuyahoga-County, Ohio
Our Model Tree links this John Mcdonnell across the 1930 and 1940 US Censuses in Cuyahoga-County, Ohio (XGBoost, ~Confirmed) — first a head (b.~1906), then head of a 4-person household.
Age 34
b. ~1906
Male
Head
Born: Ohio
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cuyahoga-County, Ohio |
| Surname | McDonnell |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | Cleveland |
| Additional Details | |
| Occupation | Principal clerk |
| Industry | Utilities |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 2300 |
| Highest Grade | No 8 |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Principal Clerk |
| Township / Ward | Cleveland |
| Est. Birth Year | ~1906 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Thomas Mcdonnell | Son | — | 9 | ~1931 |
| John Mcdonnell | Head | — | 34 | ~1906 |
| John Mcdonnell | Son | — | 7 | ~1933 |
| Elizabeth Mcdonnell | Spouse | — | 33 | ~1907 |
Census Appearances
1930
Cuyahoga, Ohio
Son, age 25
Cuyahoga, Ohio · implied b. ~1905 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McDonally |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Cuyahoga-County, Ohio
Head, age 34
Cuyahoga-County, Ohio · implied b. ~1906 — 4 household members
| Surname | McDonnell |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | Cleveland |
| Occupation | Principal clerk |
| Industry | Utilities |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 2300 |
| Highest Grade | No 8 |
| 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 John Mcdonnell across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Mcdonnell
Head · 1940 · age 34 · b. ~1906 · Ohio
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Cuyahoga-County, Ohio
Open full size
1940 US Federal Census — Cuyahoga-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03218-00785)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Rudolph Horan | 41 | Head | Mail Carrier | Ohio |
| 2 | Rose Horan | 39 | Wife | — | Ohio |
| 3 | June Horan | 18 | Daughter | New Worker | Ohio |
| 4 | Lawrence Horan | 17 | Son | — | Ohio |
| 5 | Frank Dukes | 44 | Head | Machinist | Ohio |
| 6 | Ruth Dukes | 39 | Wife | — | Ohio |
| 7 | Robert Dukes | 19 | Son | Stock Boy | Ohio |
| 8 | Joseph Milla | 41 | Head | Janitor | Poland |
| 9 | Alice Milla | 40 | Wife | — | Ohio |
| 10 | Ernest Milla | 18 | Son | New Worker | Ohio |
| 11 | Clifford Milla | 17 | Son | — | Ohio |
| 12 | Charles Milla | 17 | Son | — | Ohio |
| 13 | Robert Milla | 15 | Son | — | Ohio |
| 14 | Virginia Milla | 10 | Daughter | — | Ohio |
| 15 | Roy Fisher | 43 | Head | Shipping Clerk | Ohio |
| 16 | Ethel Fisher | 42 | Wife | — | Ohio |
| 17 | Roy Jr. Fisher | 25 | Son | Truck Driver | Ohio |
| 18 | Allyn Fisher | 18 | Son | — | Ohio |
| 19 | Gordon Fisher | 9 | Son | — | Ohio |
| 20 | Sheldon Fisher | 7 | Son | — | Ohio |
| 21 | John Mcdonnell THIS PERSON | 34 | Head | Principal Clerk | Ohio |
| 22 | Elizabeth Mcdonnell | 33 | Wife | — | Ohio |
| 23 | Thomas Mcdonnell | 9 | Son | — | Ohio |
| 24 | John Jr. Mcdonnell | 7 | Son | — | Ohio |
| 25 | Adolph O. Hudec | 37 | Head | Freight Checker | Ohio |
| 26 | Irene Hudec | 34 | Wife | — | Michigan |
| 27 | James Hudec | 14 | Son | — | Ohio |
| 28 | Daniel Szilagyi | 36 | Head | Rate Clerk | Ohio |
| 29 | Flora Szilagyi | 28 | Wife | — | Ohio |
| 30 | Louise Turnpach | 60 | Head | — | Czecho |
| 31 | Ann Turnpach | 39 | Head | Typist | Ohio |
| 32 | Gloria Ann Turnpach | 15 | Daughter | — | Ohio |
| 33 | Lois Rae Turnpach | 9 | Daughter | — | Ohio |
| 34 | Anna Divoky | 55 | Head | Seamstress | Czecho |
| 35 | Wilma Divoky | 24 | Daughter | Secretary | Ohio |
| 36 | Margaret Divoky | 18 | Daughter | — | Ohio |
| 37 | James Sanders | 36 | Head | Foreman | Ohio |
| 38 | Veronica Sanders | 35 | Wife | — | Ohio |
| 39 | Margaret Sanders | 13 | Daughter | — | Ohio |
| 40 | James Jr. Sanders | 11 | Son | — | Ohio |
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)