JF
Joseph Flynn — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Bay-County, Michigan
Our Model Tree links this Joseph Flynn across the 1930 and 1940 US Censuses in Bay-County, Michigan (XGBoost, ~Confirmed) — first a son (b.~1924), then head of a 8-person household.
Age 16
b. ~1924
Male
Son
Born: Michigan
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Bay-County, Michigan |
| Surname | Flynn |
| Given Name | Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Bay City |
| 1935 Residence (County) | Bay |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | Hs 2 |
| 1935 Residence | Same place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Township / Ward | Bay City |
| Est. Birth Year | ~1924 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Joseph | Age | Birth yr |
|---|---|---|---|---|
| Edmund Flynn | Head | — | 54 | ~1886 |
| Mary Durfreme | Daughter | — | 24 | ~1916 |
| Lois Flynn | Daughter | — | 19 | ~1921 |
| Elma Flynn | Spouse | — | 47 | ~1893 |
| Mary Durfreme | Daughter | — | 4 | ~1936 |
| Catherine Flynn | Daughter | — | 16 | ~1924 |
| Joseph Flynn | Son | — | 16 | ~1924 |
| Robert Durfreme | Son | — | 2 | ~1938 |
Census Appearances
1930
Bay, Michigan
Son, age 6
Bay, Michigan · implied b. ~1924 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Flynn |
| Given Name | Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Bay-County, Michigan
Son, age 16
Bay-County, Michigan · implied b. ~1924 — 8 household members
| Surname | Flynn |
| Given Name | Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Bay City |
| 1935 Residence (County) | Bay |
| Income (1939) | 0 |
| Highest Grade | Hs 2 |
| 1935 Residence | Same place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
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 Joseph Flynn across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Joseph Flynn
Son · 1940 · age 16 · b. ~1924 · Michigan
★ You are viewing this record
Sibling
Lois Flynn
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Flynn
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Durfreme
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Durfreme
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Durfreme
Sibling · 1940 · age 4
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 — Bay-County, Michigan
Open full size
1940 US Federal Census — Bay-County, Michigan
Page Contents
35 people indexed on this census page (nara:1940:m-t0627-01728-00694)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 2 | Margaret Donaghue | 67 | Head | — | Canada |
| 3 | Margaret T Donaghue | 35 | Daughter | Bookkeeper | Michigan |
| 4 | James Carrigan | 75 | Head | — | New York |
| 5 | Alma Carrigan | 70 | Wife | — | Michigan |
| 6 | Fred Green | 64 | Lodger | — | Canada |
| 7 | William Van Hyfte | 40 | Head | T Maker | Michigan |
| 8 | Isabel Van Hyfte | 38 | Wife | — | Michigan |
| 10 | Clarance Root | 31 | Head | Bartender | Michigan |
| 11 | Mildred Root | 25 | Wife | — | Michigan |
| 12 | Lyle L Cooper | 30 | Head | Fireman | Michigan |
| 13 | Margaret Cooper | 24 | Wife | — | Michigan |
| 14 | Mark Cooper | 1 | Son | — | — |
| 16 | Ernest R Haws | 25 | Head | Salesman | Kentucky |
| 17 | Clara Haws | 21 | Wife | — | Kentucky |
| 18 | Alvina Buckley | 65 | Head | — | Germany |
| 19 | Betty Deadman | 19 | Lodger | Secty-Work | Michigan |
| 21 | Edmund J Flynn | 54 | Head | Conductor | Michigan |
| 22 | Elma Flynn | 47 | Wife | — | Michigan |
| 23 | Mary Durfreme | 24 | Daughter | Office | Michigan |
| 24 | Lois Flynn | 19 | Daughter | Telephone Operator | Michigan |
| 25 | Catherine Flynn | 16 | Daughter | — | Michigan |
| 26 | Joseph Flynn THIS PERSON | 16 | Son | — | Michigan |
| 27 | Mary Durfreme | 4 | Daughter | — | — |
| 28 | Robert Durfreme | 2 | Son | — | — |
| 29 | Russell A Allen | 48 | Head | Salesman | Michigan |
| 30 | Eleanora Allen | 46 | Wife | — | Michigan |
| 31 | Thomas T Allen | 27 | Son | Shop Worker | Michigan |
| 32 | Marion Pasko | 25 | Daughter | — | Michigan |
| 33 | June Vallender | 24 | Daughter | — | Michigan |
| 34 | Margaret Allen | 20 | Daughter | — | Michigan |
| 35 | Russell Allen | 18 | Son | — | Michigan |
| 36 | Ruth Allen | 15 | Daughter | — | Michigan |
| 37 | Leonard La Combe | 40 | Head | Operator | Michigan |
| 38 | Genevieve La Combe | 26 | Wife | — | Michigan |
| 39 | Carol La Combe | 1 | Daughter | — | — |
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)