JF
John Flynn — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cuyahoga-County, Ohio
Our Model Tree links this John Flynn across the 1920, 1930 and 1940 US Censuses in Cuyahoga-County, Ohio (XGBoost, ~Confirmed), with identified parents Patrick & Mary — first a son (b.~1897), then head of a 3-person household.
Age 43
b. ~1897
Male
Son
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cuyahoga-County, Ohio |
| Surname | Flynn |
| Given Name | John |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Cleveland City |
| 1935 Residence (County) | Cuyahoga |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Same house |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Township / Ward | Cleveland City |
| Est. Birth Year | ~1897 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Florence Flynn | Daughter | — | 30 | ~1910 |
| Mary Flynn | Head | — | 68 | ~1872 |
| John Flynn | Son | — | 43 | ~1897 |
Census Appearances
1920
Cuyahoga, Ohio
Son, age 23
Cuyahoga, Ohio · implied b. ~1897 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Flynn |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Laborer |
| Industry | Rubber Works |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Cuyahoga, Ohio
Son, age 33
Cuyahoga, Ohio · implied b. ~1897 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Flynn |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Inspector |
| Industry | Radio Tube Factory |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Cuyahoga-County, Ohio
Son, age 43
Cuyahoga-County, Ohio · implied b. ~1897 — 3 household members
| Surname | Flynn |
| Given Name | John |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Cleveland City |
| 1935 Residence (County) | Cuyahoga |
| Income (1939) | 0 |
| Highest Grade | No 7 |
| 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 John Flynn across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Patrick Flynn (~0.92 confidence) and mother Mary Flynn (~0.92 confidence) and mother Mary Flynn (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Patrick Flynn
b. ~1870
Source father
● Household
· direct · ~0.92
Mother
Mary Flynn
b. ~1870
Source mother
● Household
· direct · ~0.92
Mother
Mary Flynn
b. ~1872
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Flynn
Son · 1940 · age 43 · b. ~1897 · Ohio
★ You are viewing this record
Sibling
Florence Flynn
Sibling · 1940 · age 30
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 — 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-t0627-03232-00179)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Anna D. Hall | 52 | wife | — | Pennsylvania |
| 2 | Lillian Small | 34 | daughter | Mechanic | Ohio |
| 3 | Albert Small | 35 | son | — | Pennsylvania |
| 4 | Jack O. Nether | 26 | head | Salesman | Canada-Eng |
| 5 | Mildred Nether | 26 | wife | Stenographer | Ohio |
| 6 | Clara Porter | 46 | head | Dressmaker | Hungary |
| 7 | Coke Marie D. Porter | 22 | daughter | — | Ohio |
| 8 | Julia D. Naderassi | 54 | head | — | Hungary |
| 9 | John Naderassi | 22 | son | — | Ohio |
| 10 | Earnest Naderassi | 19 | son | Machinist | Ohio |
| 11 | Victor A. D. Polacek | 27 | head | Estimate Clerk | Ohio |
| 12 | Pauline L. Polacek | 24 | wife | — | Ohio |
| 13 | Rose Polacek | 58 | mother | — | Germany |
| 14 | George D. Knopf | 27 | head | Attendant | Ohio |
| 15 | Gladys Knopf | 28 | wife | Trained Nurse | Ohio |
| 16 | Marjorie Miller | 25 | roomer | Trained Nurse | Ohio |
| 17 | Louis Luscri | 29 | head | Waiter | Italy |
| 18 | Mary D. Luscri | 78 | mother | — | Italy |
| 19 | Leo Stanley Notin | 43 | head | Machinist | New York |
| 20 | Ethel D. Notin | 35 | wife | — | New York |
| 21 | Deloris Notin | 12 | daughter | — | Ohio |
| 22 | Stanley Jr. Notin | 10 | son | — | Ohio |
| 23 | Eugene Merchiaro | 38 | head | Machine Operator | Italy |
| 24 | Angela D. Merchiaro | 31 | wife | — | Pennsylvania |
| 25 | Fred Macken | 30 | head | Steel Engraver | New Jersey |
| 26 | Mae D. Macken | 30 | wife | Stenographer | Rhode Island |
| 27 | Mary Flynn | 68 | head | — | Ireland |
| 28 | John Flynn THIS PERSON | 43 | son | — | Ohio |
| 29 | Florence Flynn | 30 | daughter | Stenographer | Ohio |
| 30 | Thomas Mccarthy | 41 | head | Bus Driver | Ohio |
| 31 | Mary D. Mccarthy | 40 | daughter | — | Ohio |
| 32 | Raymond Mccarthy | 13 | grand-son | — | Ohio |
| 33 | Elmer Mccarthy | 11 | grand-son | — | Ohio |
| 34 | John Kofus | 35 | head | — | Ohio |
| 35 | Catherine D. Kofus | 31 | wife | — | Hungary |
| 36 | Anthony Kofus | 2 | son | — | Ohio |
| 37 | Joseph Kofus | 1 | son | — | Ohio |
| 38 | Mary Szabo | 60 | head | — | Hungary |
| 39 | Hertha Gordon | 30 | boarder | Trained Nurse | Maryland |
| 40 | George Nelson | 24 | roomer | Pattern Maker | Ohio |
Pedigree Summary
John + 1 sibling
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)