JB
John Byrne — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Olmsted-County, Minnesota
Our Model Tree links this John Byrne across the 1920, 1930 and 1940 US Censuses in Olmsted-County, Minnesota (XGBoost, ~Confirmed) — first a head (b.~1889), then head of a 3-person household.
Age 51
b. ~1889
Male
Head
Born: South Dakota
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Olmsted-County, Minnesota |
| Surname | Byrne |
| Given Name | John C. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | South Dakota |
| 1935 Residence (City) | Rochester City |
| 1935 Residence (County) | Olmsted |
| Additional Details | |
| Occupation | Registered Nurse |
| Industry | Clinic |
| Class of Worker | PW |
| Hours Worked | 46 |
| Income (1939) | 2220 |
| Highest Grade | H 2 |
| 1935 Residence | Same place |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
| Occupation | Registered Nurse |
| Township / Ward | Rochester City |
| Est. Birth Year | ~1889 |
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 |
|---|---|---|---|---|
| Ethel Byrne | Spouse | — | 46 | ~1894 |
| Margaret Byrne | Daughter | — | 23 | ~1917 |
| John Byrne | Head | — | 51 | ~1889 |
Census Appearances
1920
Olmsted, Minnesota
Head, age 31
Olmsted, Minnesota · implied b. ~1889 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Byrne |
| Given Name | John C. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | South Dakota |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Wisconsin |
| Occupation | Trained nurse |
| Industry | St Marys |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | South Dakota |
| Birth Country | United States |
| Year of Naturalization | R |
| Birthplace (normalized) | south dakota |
1930
Olmsted, Minnesota
Head, age 41
Olmsted, Minnesota · implied b. ~1889 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Byrne |
| Given Name | John C. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | South Dakota |
| Age at First Marriage | 25 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Minnesota |
| Occupation | Dressing Nurse |
| Industry | Hospital |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 35 |
| Radio Set | R |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
1940
Olmsted-County, Minnesota
Head, age 51
Olmsted-County, Minnesota · implied b. ~1889 — 3 household members
| Surname | Byrne |
| Given Name | John C. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | South Dakota |
| 1935 Residence (City) | Rochester City |
| 1935 Residence (County) | Olmsted |
| Occupation | Registered Nurse |
| Industry | Clinic |
| Class of Worker | PW |
| Hours Worked | 46 |
| Income (1939) | 2220 |
| Highest Grade | H 2 |
| 1935 Residence | Same place |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
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 Byrne across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Byrne
Head · 1940 · age 51 · b. ~1889 · Minnesota
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Olmsted-County, Minnesota
Open full size
1940 US Federal Census — Olmsted-County, Minnesota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01944-00739)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Allan L. Johnson | 30 | Head | Freight Agent | Minnesota |
| 2 | Nellie L. Johnson | 31 | Wife | — | Minnesota |
| 3 | Kermit Paulson | 28 | Lodger | Truck Driver | Minnesota |
| 4 | Alvin Schoenfelder | 22 | Lodger | Freight Handler | Minnesota |
| 5 | Donald W. Emerson | 41 | Head | Caretaker | Minnesota |
| 6 | Lucile E. Emerson | 41 | Wife | Caretaker | Illinois |
| 7 | Doris M. Haas | 19 | Head | Cashier | Minnesota |
| 8 | Phyllis L. Haas | 22 | Sister | Stenographer | Minnesota |
| 9 | Lois A. Haas | 17 | Sister | — | Minnesota |
| 10 | Eleanor A. Foley | 17 | Lodger | — | Minnesota |
| 11 | Anna M. Stratton | 51 | Mother-in-law | — | Pennsylvania |
| 12 | Erling Freeborn | 32 | Head | Manager | Minnesota |
| 13 | Lela A. Freeborn | 31 | Wife | Registered Nurse | Pennsylvania |
| 14 | Walter R. Anderson | 42 | Head | Asst Shipping Clerk | Minnesota |
| 15 | Helen A. Anderson | 42 | Wife | Dressmaker | Minnesota |
| 16 | John C. Byrne THIS PERSON | 51 | Head | Registered Nurse | South Dakota |
| 17 | Ethel Byrne | 46 | Wife | Saleslady | Wisconsin |
| 18 | Margaret Byrne | 23 | Daughter | — | Minnesota |
| 19 | Minnie O. Neuman | 56 | Head | — | Minnesota |
| 20 | Gustave W. Neuman | 24 | Son | Salesman | Minnesota |
| 21 | Anna M. Neuman | 18 | Daughter | Beauty Operator | Minnesota |
| 22 | Don B. Milne | 30 | Head | Musician | Wisconsin |
| 23 | Maybelle Milne | 45 | Wife | Continuity Writer | Minnesota |
| 24 | Douglas S. Watts | 26 | Head | Salesman | Minnesota |
| 25 | Loraine Watts | 26 | Wife | — | Minnesota |
| 26 | Frank S. Watts | 69 | Father | — | Minnesota |
| 27 | Dora M. Hannenberger | 55 | Head | Housekeeper | Minnesota |
| 28 | Marvin S. Hannenberger | 25 | Son | Clerk | Minnesota |
| 29 | Dwyan M. Hannenberger | 21 | Son | Clerk | Minnesota |
| 30 | Bertha M. Hannenberger | 15 | Daughter | — | Minnesota |
| 31 | John M. Holland | 69 | Head | — | Minnesota |
| 32 | Margaret S. Holland | 53 | Wife | Proprietor | Irish Free State |
| 33 | William D. Holland | 21 | Son | Laborer | South Dakota |
| 34 | Paul J. Holland | 18 | Son | — | Minnesota |
| 35 | John M. Holland | 15 | Son | — | Minnesota |
| 36 | Anna B. Postier | 55 | Head | Proprietor | Norway |
| 37 | Edwin C. Zilske | 42 | Head | Principal | Minnesota |
| 38 | Esther L. Zilske | 41 | Wife | — | Minnesota |
| 39 | Herbert A. Zilske | 19 | Son | Messenger | Michigan |
| 40 | Kurt W. Zilske | 15 | Son | Newsboy | 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)