JF
John Finn — 1940 US Census Record
Linked across censuses1940 United States Federal Census · District-Of-Columbia-County, District of Columbia
Our Model Tree links this John Finn across the 1920, 1930 and 1940 US Censuses in District-Of-Columbia-County, District of Columbia (XGBoost, ~Confirmed) — first a head (b.~1881), then head of a 3-person household.
Age 59
b. ~1881
Male
Head
Born: Virginia
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | District-Of-Columbia-County, District of Columbia |
| Surname | Finn |
| Given Name | John W. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 59 |
| Marital Status | Married |
| Birthplace | Virginia |
| 1935 Residence (City) | Washington |
| 1935 Residence (County) | District Of Columbia |
| Additional Details | |
| Occupation | supervisor |
| Industry | Navy Yard |
| Class of Worker | GW |
| Hours Worked | 44 |
| Income (1939) | 3100 |
| Highest Grade | H 2 |
| 1935 Residence | Same House |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
| Occupation | Supervisor |
| Township / Ward | Washington |
| Est. Birth Year | ~1881 |
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 |
|---|---|---|---|---|
| Elvira Finn | Daughter | — | 29 | ~1911 |
| Margaret Finn | Spouse | — | 61 | ~1879 |
| John Finn | Head | — | 59 | ~1881 |
Census Appearances
1920
None, District …
Head, age 38
None, District of Columbia · implied b. ~1882 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Finn |
| Given Name | John W. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Virginia |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Virginia |
| Occupation | Superintendent |
| Industry | Government |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
1930
None, District …
Head, age 49
None, District of Columbia · implied b. ~1881 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Finn |
| Given Name | John W |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Virginia |
| Age at First Marriage | 24 |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Virginia |
| Occupation | Supervisor |
| Industry | Navy Yard |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 9,000 |
| Radio Set | R |
| Veteran | No |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
1940
District-Of-Columbia-County, District …
Head, age 59
District-Of-Columbia-County, District of Columbia · implied b. ~1881 — 3 household members
| Surname | Finn |
| Given Name | John W. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 59 |
| Marital Status | Married |
| Birthplace | Virginia |
| 1935 Residence (City) | Washington |
| 1935 Residence (County) | District Of Columbia |
| Occupation | supervisor |
| Industry | Navy Yard |
| Class of Worker | GW |
| Hours Worked | 44 |
| Income (1939) | 3100 |
| Highest Grade | H 2 |
| 1935 Residence | Same House |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
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 Finn across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Finn
Head · 1940 · age 59 · b. ~1881 · District of Columbia
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — District-Of-Columbia-County, District of Columbia
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1940 US Federal Census — District-Of-Columbia-County, District of Columbia
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00570-00104)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | William Leonard | 11 | Son | — | District of Columbia |
| 42 | Joseph W. Donahue | 43 | Head | Postal Clerk | Illinois |
| 43 | Helen Donahue | 40 | Wife | File Clerk | Maryland |
| 44 | Joseph Donahue | 7 | Son | — | District of Columbia |
| 45 | Maurice Donahue | 5 | Son | — | District of Columbia |
| 46 | Pauline Grummel | 36 | Lodger | Typist Clerk | New York |
| 47 | Paul O. Radler | 41 | Head | Stock Broker | District of Columbia |
| 48 | Pauline Radler | 44 | Wife | — | New York |
| 49 | Jane Radler | 17 | Daughter | — | District of Columbia |
| 50 | John Radler | 9 | Son | — | District of Columbia |
| 51 | Orville Shepherd | 45 | Head | Contractor | District of Columbia |
| 52 | Mae Shepherd | 42 | Wife | — | District of Columbia |
| 53 | Orville Shepherd | 19 | Son | — | District of Columbia |
| 54 | William Shepherd | 15 | Son | — | District of Columbia |
| 55 | Edgar Mills | 49 | Head | Buyer | Virginia |
| 56 | Mary Mills | 45 | Wife | Grammar School Teacher | Maryland |
| 57 | Robert H. Tebo | 62 | Head | Millman | Virginia |
| 58 | Mary Tebo | 52 | Wife | — | Virginia |
| 59 | Robert Tebo | 24 | Son | Bookkeeper | District of Columbia |
| 60 | J. Edgar Collins | 26 | Lodger | Law Teacher | Massachusetts |
| 61 | Lester E. Dixon | 47 | Head | Head Clerk | New York |
| 62 | Ethel Dixon | 45 | Wife | Audit Clerk | Pennsylvania |
| 63 | John J. Mccann | 40 | Head | File Clerk | District of Columbia |
| 64 | Sarah Mccann | 38 | Wife | — | District of Columbia |
| 65 | Patricia Mccann | 1 | Daughter | — | District of Columbia |
| 66 | Laura Mccann | 65 | Mother | — | District of Columbia |
| 67 | Otto W. Rosenbaum | 46 | Head | Liaison Officer | Maryland |
| 68 | Bertha Rosenbaum | 42 | Wife | — | Maryland |
| 69 | Elmer Rosenbaum | 24 | Son | Attendant | Maryland |
| 70 | Jean Rosenbaum | 8 | Daughter | — | District of Columbia |
| 71 | Dorothy Hartley | 22 | Daughter | Stenographer | Maryland |
| 72 | Margaret Hartley | 19 | Daughter | — | Maryland |
| 73 | Henry F. Beanes | 62 | Head | Stationary Engineer | Virginia |
| 74 | Lillian Beanes | 55 | Wife | — | District of Columbia |
| 75 | Mollie Mckenney | 77 | Mother in law | — | Virginia |
| 76 | Elizabeth Dennison | 61 | Lodger | — | Pennsylvania |
| 77 | Martin Cummings | 27 | Lodger | Messenger | Massachusetts |
| 78 | John W. Finn THIS PERSON | 59 | Head | Supervisor | Virginia |
| 79 | Margaret Finn | 61 | Wife | — | Maryland |
| 80 | Elvira Finn | 29 | Daughter | Card Puncher | District of Columbia |
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)