WF
William Flynn — 1940 US Census Record
Model Tree available1940 United States Federal Census · New-York-County, New York
Our Model Tree links this William Flynn across the 1920, 1930 and 1940 US Censuses in New-York-County, New York (XGBoost, ~Confirmed), with identified parents Anna — first a son (b.~1919), then head of a 5-person household.
Age 21
b. ~1919
Male
Son
Born: New York
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | New-York-County, New York |
| Surname | Flynn |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | New York |
| 1935 Residence (County) | New York |
| Additional Details | |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Township / Ward | New York |
| 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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Mary Flynn | Daughter | — | 17 | ~1923 |
| Anna Flynn | Head | — | 49 | ~1891 |
| Joseph Flynn | Son | — | 23 | ~1917 |
| Francis Flynn | Son | — | 12 | ~1928 |
| William Flynn | Son | — | 21 | ~1919 |
Census Appearances
1920
Richmond, New …
Other, age 1
Richmond, New York · implied b. ~1919 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Flynn |
| Given Name | William |
| Relationship to Head | Grandson |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1930
Richmond, New …
Other, age 12
Richmond, New York · implied b. ~1918 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Flynn |
| Given Name | William |
| Relationship to Head | Grandson |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Can Read/Write | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
New-York-County, New …
Son, age 21
New-York-County, New York · implied b. ~1919 — 5 household members
| Surname | Flynn |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | New York |
| 1935 Residence (County) | New York |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
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 William Flynn across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Anna Flynn (~0.92 confidence). The pedigree spans 1 generation with 1 identified ancestor.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Anna Flynn
b. ~1891
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Flynn
Son · 1940 · age 21 · b. ~1919 · New York
★ You are viewing this record
Sibling
Joseph Flynn
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Francis Flynn
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Flynn
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 — New-York-County, New York
Open full size
1940 US Federal Census — New-York-County, New York
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02644-00768)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Patrick Cahill | 36 | Head | Stage Hand | Ireland |
| 2 | Anna Flynn | 49 | Head | — | Jersey City |
| 3 | Joseph Flynn | 23 | Son | Painter | New York |
| 4 | William Flynn THIS PERSON | 21 | Son | — | New York |
| 5 | Mary Flynn | 17 | Daughter | — | New York |
| 6 | Francis Flynn | 12 | Son | — | New York |
| 7 | William Steeneck | 43 | Head | Owner | Germany |
| 8 | Frieda Steeneck | 42 | Wife | — | New York |
| 9 | Emily Steeneck | 14 | Daughter | — | New York |
| 10 | Catherine Steeneck | 12 | Daughter | — | New York |
| 11 | Catherine Odell | 44 | Head | — | New York |
| 12 | Helen Odell | 21 | Daughter | Packer | New York |
| 13 | William Fisher | 67 | Father | — | Germany |
| 14 | Irene Quinn | 25 | Lodger | Packer | New York |
| 15 | Florence Downey | 67 | Head | — | Mass |
| 16 | Alfred Downey | 42 | Son | Actor | Mass |
| 17 | Viola Downey | 31 | Daughter | Operator | Mass |
| 18 | Robert Autman | 39 | Head | Clerk | Illinois |
| 19 | Patricia Autman | 38 | Wife | Clerk | Michigan |
| 20 | Junior Autman | 16 | Son | — | New Jersey |
| 21 | John T. Gleason | 30 | Head | Bookkeeper | New York |
| 22 | Thomas Harvey | 52 | Head | — | New York |
| 23 | William Harvey | 54 | Brother | Operator | New York |
| 24 | Peter Wachtmuth | 37 | Head | Taxi Driver | New York |
| 25 | Helen Wachtmuth | 57 | Wife | — | Austria |
| 26 | Helen Wachtmuth | 26 | Daughter | — | New York |
| 27 | John Wachtmuth | 20 | Brother | Clerk | New York |
| 28 | William R. Boag | 79 | Head | — | New York |
| 29 | Douglas Boag | 41 | Son | Real Estate | New York |
| 30 | Anna B. Boag | 80 | Wife | — | New York |
| 31 | Ellen Morley | 57 | Maid | Maid | Ireland |
| 32 | William O'Bolin | 45 | Lodger | Writer | Conn |
| 33 | Carrie Vesper | 50 | Lodger | Buyer | Kansas |
| 34 | James Harney | 36 | Head | Supt | Scotland |
| 35 | Jean Harney | 34 | Wife | — | Scotland |
| 36 | Margaret Harney | 11 | Daughter | — | New York |
| 37 | Elizabeth Harney | 8 | Daughter | — | New Jersey |
| 38 | Jean Harney | 3 | Daughter | — | New York |
| 39 | John Harney | 41 | Brother | Supt | Scotland |
| 40 | John O'Brien | 59 | Head | — | Ireland |
Pedigree Summary
William + 3 siblings
Gen 1 · 1 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)