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James Brennan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Hennepin-County, Minnesota
Our Model Tree links this James Brennan across the 1920, 1930 and 1940 US Censuses in Hennepin-County, Minnesota (XGBoost, ~Confirmed) — first a head (b.~1890), then head of a 7-person household.
Age 50
b. ~1890
Male
Head
Born: North Dakota
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Hennepin-County, Minnesota |
| Surname | Brennan |
| Given Name | James J |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | North Dakota |
| 1935 Residence (City) | Minneapolis |
| 1935 Residence (County) | Hennepin |
| Additional Details | |
| Occupation | Engineer |
| Industry | Electric Power Co |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 5000 |
| Highest Grade | C 4 |
| 1935 Residence | Same house |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
| Occupation | Engineer |
| Township / Ward | Minneapolis |
| Est. Birth Year | ~1890 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Jeanne Brennan | Daughter | — | 11 | ~1929 |
| Ann Brennan | Daughter | — | 13 | ~1927 |
| James Brennan | Head | — | 50 | ~1890 |
| James Brennan | Son | — | 18 | ~1922 |
| Mark Brennan | Son | — | 17 | ~1923 |
| Frank Brennan | Son | — | 15 | ~1925 |
| Echo Brennan | Spouse | — | 53 | ~1887 |
Census Appearances
1920
Hennepin, Minnesota
Head, age 31
Hennepin, Minnesota · implied b. ~1889 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brennan |
| Given Name | James J |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | North Dakota |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | New York |
| Occupation | Engineer |
| Industry | Mechanical |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
1930
Hennepin, Minnesota
Head, age 41
Hennepin, Minnesota · implied b. ~1889 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brinman |
| Given Name | James J |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | North Dakota |
| Age at First Marriage | 28 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | New York |
| Occupation | Engineer |
| Industry | Public Utility |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 125.00 |
| Radio Set | R |
| Veteran | Yes |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
1940
Hennepin-County, Minnesota
Head, age 50
Hennepin-County, Minnesota · implied b. ~1890 — 7 household members
| Surname | Brennan |
| Given Name | James J |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | North Dakota |
| 1935 Residence (City) | Minneapolis |
| 1935 Residence (County) | Hennepin |
| Occupation | Engineer |
| Industry | Electric Power Co |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 5000 |
| Highest Grade | C 4 |
| 1935 Residence | Same house |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north 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 James Brennan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Brennan
Head · 1940 · age 50 · b. ~1890 · 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 — 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-t0627-01993-00949)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | James J Brennan THIS PERSON | 50 | Head | Engineer | North Dakota |
| 2 | Echo E Brennan | 53 | Wife | — | North Dakota |
| 3 | James A Brennan | 18 | Son | — | Minnesota |
| 4 | Mark E Brennan | 17 | Son | — | Minnesota |
| 5 | Frank J Brennan | 15 | Son | — | Minnesota |
| 6 | Ann G Brennan | 13 | Daughter | — | Minnesota |
| 7 | Jeanne T Brennan | 11 | Daughter | — | Minnesota |
| 8 | George Ludolph | 47 | Head | Public Accountant | New York |
| 9 | Catherine Ludolph | 48 | Wife | — | New York |
| 10 | Andrew Ludolph | 20 | Son | — | New York |
| 11 | Marian Ludolph | 16 | Daughter | — | New York |
| 12 | Mildred Andersen | 26 | Maid | Maid | Minnesota |
| 13 | Verna L Roll | 50 | Head | — | Canada |
| 14 | Vernon E Roll | 28 | Son | Usher | Canada |
| 15 | George M Roll | 27 | Son | Attendant | Canada |
| 16 | Idella J Roll | 11 | Daughter | — | Minnesota |
| 17 | William E Rector | 53 | Head | — | Missouri |
| 18 | Minnie B Rector | 54 | Wife | — | Missouri |
| 19 | Marian H Rector | 18 | Daughter | Graph Clerk | Minnesota |
| 20 | Russell W Johnson | 31 | Son | City Fireman | Minnesota |
| 21 | Dorothy G Johnson | 25 | Daughter | Librarian | Missouri |
| 22 | Norman E Krafft | 48 | Head | — | Illinois |
| 23 | Lillian A Krafft | 45 | Wife | — | Minnesota |
| 24 | Patricia H Krafft | 19 | Daughter | — | Minnesota |
| 25 | Grant S Callender | 70 | Head | Vice President | Minnesota |
| 26 | Marion Callender | 56 | Wife | — | Minnesota |
| 27 | Charles H Burt | 85 | Lodger | — | Massachusetts |
| 28 | Lenora Ogren | 37 | Maid | Maid | Minnesota |
| 29 | Buckbee | None | — | — | — |
| 30 | — | None | — | — | — |
| 31 | — | None | — | — | — |
| 32 | — | None | — | — | — |
| 33 | — | None | — | — | — |
| 34 | Gladys Barrett | 45 | Lodger | Teacher | Minnesota |
| 35 | Arthur Grayston | 63 | Head | Manager | Illinois |
| 36 | Clara E Grayston | 58 | Wife | — | Illinois |
| 37 | Mollie Kraemer | 26 | Maid | Maid | Minnesota |
| 38 | Alexander E Upwick | 56 | Head | Traffic Manager | Minnesota |
| 39 | Edna J Upwick | 55 | Wife | — | Minnesota |
| 40 | Otis J Upwick | 29 | Son | Local Traveling Salesman | 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)