JF
John Flaherty — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Hennepin-County, Minnesota
Our Model Tree links this John Flaherty across the 1930 and 1940 US Censuses in Hennepin-County, Minnesota (XGBoost, ~Confirmed) — first a son (b.~1919), then head of a 8-person household.
Age 21
b. ~1919
Male
Son
Born: Minnesota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Hennepin-County, Minnesota |
| Surname | Flaherty |
| Given Name | John J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Minneapolis |
| 1935 Residence (County) | Hennepin |
| Additional Details | |
| Occupation | File Clerk |
| Industry | Relief Dept |
| Class of Worker | GW |
| Hours Worked | 38 |
| Income (1939) | 493 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Occupation | File Clerk |
| Township / Ward | Minneapolis |
| 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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Flaherty | Son | — | 21 | ~1919 |
| William Flaherty | Son | — | 16 | ~1924 |
| Martin Flaherty | Head | — | 55 | ~1885 |
| Helen Flaherty | Daughter | — | 14 | ~1926 |
| Catherine Flaherty | Daughter | — | 15 | ~1925 |
| Mary Flaherty | Daughter | — | 23 | ~1917 |
| Bridget Flaherty | Spouse | — | 55 | ~1885 |
| James Flaherty | Son | — | 24 | ~1916 |
Census Appearances
1930
Hennepin, Minnesota
Son, age 11
Hennepin, Minnesota · implied b. ~1919 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Flaherty |
| Given Name | John |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Can Read/Write | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Hennepin-County, Minnesota
Son, age 21
Hennepin-County, Minnesota · implied b. ~1919 — 8 household members
| Surname | Flaherty |
| Given Name | John J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Minneapolis |
| 1935 Residence (County) | Hennepin |
| Occupation | File Clerk |
| Industry | Relief Dept |
| Class of Worker | GW |
| Hours Worked | 38 |
| Income (1939) | 493 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
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 Flaherty across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Flaherty
Son · 1940 · age 21 · b. ~1919 · Minnesota
★ You are viewing this record
Sibling
Mary Flaherty
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Flaherty
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Flaherty
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Flaherty
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Flaherty
Sibling · 1940 · age 24
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 — Hennepin-County, Minnesota
Open full size
1940 US Federal Census — Hennepin-County, Minnesota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01988-00303)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Jennie D. Lohmann | 54 | Head | — | Minnesota |
| 42 | Carol M. Lohmann | 20 | Daughter | New Worker | Minnesota |
| 43 | Earl B. Lohmann | 17 | Son | Water Department | Minnesota |
| 44 | Elsie M. Lohmann | 15 | Daughter | Packer | Minnesota |
| 45 | John M. Alberico | 41 | Head | Welder | Wisconsin |
| 46 | Grace M. Alberico | 37 | Wife | — | Wisconsin |
| 47 | Joseph A. Alberico | 18 | Son | New Worker | Wisconsin |
| 48 | Harold F. Alberico | 15 | Son | — | Minnesota |
| 49 | Myrna A. Alberico | 10 | Daughter | — | Illinois |
| 50 | Margaret A. Boelgen | 76 | Head | — | Minnesota |
| 51 | Albert J. Meyer | 46 | Daughter | Waitress | Minnesota |
| 52 | Peter J. Meyer | 49 | Son-in-law | Meat Salesman | Minnesota |
| 53 | Harold A. Meyer | 18 | Grandson | — | Minnesota |
| 54 | Lawrence R. Meyer | 13 | Grandson | — | Minnesota |
| 55 | Frank W. Lienandt | 62 | Head | Sales Merchant | Germany |
| 56 | Mary E. Lienandt | 60 | Wife | — | Minnesota |
| 57 | John A. Lienandt | 27 | Son | Co-Owner | Minnesota |
| 58 | Frances Lienandt | 20 | Daughter | Asst. Buyer | Minnesota |
| 59 | Laurent A. Dupont | 26 | Head | Clerk | Minnesota |
| 60 | Mary A. Dupont | 23 | Wife | — | Minnesota |
| 61 | Mary S. Dupont | 1 | Daughter | — | Minnesota |
| 62 | Mary K. Dupont | 0 | Daughter | — | Minnesota |
| 63 | Martin E. Flaherty | 55 | Head | Clerk | Minnesota |
| 64 | Bridget T. Flaherty | 55 | Wife | — | Minnesota |
| 65 | James F. Flaherty | 24 | Son | Janitor | Minnesota |
| 66 | Mary M. Flaherty | 23 | Daughter | Billing Clerk | Minnesota |
| 67 | John J. Flaherty THIS PERSON | 21 | Son | File Clerk | Minnesota |
| 68 | Catherine J. Flaherty | 15 | Daughter | — | Minnesota |
| 69 | William B. Flaherty | 16 | Son | — | Minnesota |
| 70 | Helen G. Flaherty | 14 | Daughter | — | Minnesota |
| 71 | Hans Hansen | 50 | Head | Foreman | Norway |
| 72 | Mabel Hansen | 39 | Wife | — | Minnesota |
| 73 | Clara M. Hansen | 22 | Daughter | Typist And Billing Clerk | South Dakota |
| 74 | Dorothy J. Hansen | 20 | Daughter | Soda Fountain Clerk | South Dakota |
| 75 | Edward H. Hansen | 18 | Son | Apprentice Engraver | South Dakota |
| 76 | Phyllis E. Hansen | 15 | Daughter | — | Wisconsin |
| 77 | Harriet L. Hansen | 13 | Daughter | — | Minnesota |
| 78 | Shirley A. Hansen | 11 | Daughter | — | Minnesota |
| 79 | Richard F. Hansen | 9 | Son | — | Minnesota |
| 80 | Joan M. Hansen | 7 | Daughter | — | Minnesota |
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)