JB
John Brennan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Benton-County, Minnesota
Our Model Tree links this John Brennan across the 1930 and 1940 US Censuses in Benton-County, Minnesota (XGBoost, ~Confirmed) — first a son (b.~1924), then head of a 11-person household.
Age 16
b. ~1924
Male
Son
Born: Minnesota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Benton-County, Minnesota |
| Surname | Brennan |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (County) | Benton |
| Additional Details | |
| Highest Grade | H-2 |
| 1935 Residence | Same place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Township / Ward | Minden Township |
| 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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Theresa Brennan | Daughter | — | 9 | ~1931 |
| Mercedes Brennan | Daughter | — | 19 | ~1921 |
| Betty Brennan | Daughter | — | 10 | ~1930 |
| Mary Brennan | Daughter | — | 12 | ~1928 |
| Edward Brennan | Head | — | 51 | ~1889 |
| John Brennan | Son | — | 16 | ~1924 |
| Francis Brennan | Son | — | 21 | ~1919 |
| William Brennan | Son | — | 18 | ~1922 |
| Richard Brennan | Son | — | 14 | ~1926 |
| James Brennan | Son | — | 6 | ~1934 |
| Charlotte Brennan | Spouse | — | 42 | ~1898 |
Census Appearances
1930
Benton, Minnesota
Son, age 6
Benton, Minnesota · implied b. ~1924 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brennan |
| Given Name | John S. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Minnesota |
| Can Read/Write | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Benton-County, Minnesota
Son, age 16
Benton-County, Minnesota · implied b. ~1924 — 11 household members
| Surname | Brennan |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (County) | Benton |
| Highest Grade | H-2 |
| 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 Brennan across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Brennan
Son · 1940 · age 16 · b. ~1924 · Minnesota
★ You are viewing this record
Sibling
Mary Brennan
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Brennan
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Brennan
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Brennan
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Francis Brennan
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Betty Brennan
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mercedes Brennan
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Theresa Brennan
Sibling · 1940 · age 9
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 — Benton-County, Minnesota
Open full size
1940 US Federal Census — Benton-County, Minnesota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01907-00242)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Kenneth Neuser | 1 | Son | — | Minnesota |
| 42 | Clarence Primus | 23 | Lodger | Farm Helper | Minnesota |
| 43 | Rose M. Ayres | 62 | Head | — | Iowa |
| 44 | Clyde Ayres | 24 | Son | 84 | Minnesota |
| 45 | Lawrence Brom | 24 | Head | 84 | Minnesota |
| 46 | Evelyn Brom | 23 | Wife | — | Minnesota |
| 47 | Mary Brom | 66 | Mother | — | Wisconsin |
| 48 | Primo Rosa | 33 | Head | 84 | Vermont |
| 49 | Margaret Rosa | 28 | Wife | — | Minnesota |
| 50 | Richard Rosa | 9 | Son | — | Minnesota |
| 51 | Lloyd Rosa | 6 | Son | — | Minnesota |
| 52 | Jerome Rosa | 2 | Son | — | Minnesota |
| 53 | Peter Schwickrath | 27 | Lodger | Farm Helper | Iowa |
| 54 | Leo Bromenschenkel | 45 | Head | 84 | Minnesota |
| 55 | Bertha Bromenschenkel | 38 | Wife | — | Minnesota |
| 56 | Lorraine Bromenschenkel | 8 | Daughter | — | Minnesota |
| 57 | Theresa Bromenschenkel | 6 | Daughter | — | Minnesota |
| 58 | Clarence Bromenschenkel | 5 | Son | — | Minnesota |
| 59 | Raymond Bromenschenkel | 4 | Son | — | Minnesota |
| 60 | Leo Bromenschenkel | 2 | Son | — | Minnesota |
| 61 | James Bromenschenkel | 1 | Son | — | Minnesota |
| 62 | Alex Ballard | 33 | Lodger | Farm Hand | Minnesota |
| 63 | Kampbell Larson | 32 | Head | Farmer | Minnesota |
| 64 | Hazel Larson | 25 | Wife | — | Washington |
| 65 | Mike D. Klinkner | 57 | Head | 84 | Minnesota |
| 66 | Albert Paul | 27 | Brother | 84 | Minnesota |
| 67 | Edna Paul | 23 | Sister-in-law | — | Minnesota |
| 68 | Lorraine Paul | 1 | Niece | — | Minnesota |
| 69 | Mathilda Paul | 25 | Sister | — | Minnesota |
| 70 | Edward Brennan | 51 | Head | 84 | Minnesota |
| 71 | Charlotte Brennan | 42 | Wife | — | Minnesota |
| 72 | Francis Brennan | 21 | Son | — | Minnesota |
| 73 | Mercedes Brennan | 19 | Daughter | — | Minnesota |
| 74 | William Brennan | 18 | Son | 50 | Minnesota |
| 75 | John Brennan THIS PERSON | 16 | Son | — | Minnesota |
| 76 | Richard Brennan | 14 | Son | — | Minnesota |
| 77 | Mary Anne Brennan | 12 | Daughter | — | Minnesota |
| 78 | Betty Jane Brennan | 10 | Daughter | — | Minnesota |
| 79 | Theresa Brennan | 9 | Daughter | — | Minnesota |
| 80 | James Brennan | 6 | Son | — | Minnesota |
Related Census Records
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)