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John Monroe — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Sacramento-County, California
Our Model Tree links this John Monroe across the 1930 and 1940 US Censuses in Sacramento-County, California (XGBoost, ~Confirmed) — first a head (b.~1882), then head of a 7-person household.
Age 58
b. ~1882
Male
Head
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Sacramento-County, California |
| Surname | Monroe |
| Given Name | John D |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 58 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Sacramento |
| 1935 Residence (County) | Sacramento |
| Additional Details | |
| Occupation | motorman |
| Industry | electric r. r. |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 2235 |
| Highest Grade | Hs 4 |
| 1935 Residence | California |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Motorman |
| Township / Ward | American Twp |
| Est. Birth Year | ~1882 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Elizabeth Monroe | Daughter | — | 10 | ~1930 |
| Agnes Monroe | Daughter | — | 15 | ~1925 |
| Maude Smith | Other | — | 2 | ~1938 |
| Muriel Monroe | Spouse | — | 40 | ~1900 |
| John Monroe | Son | — | 7 | ~1933 |
| John Monroe | Head | — | 58 | ~1882 |
| Rosalie Monroe | Daughter | — | 17 | ~1923 |
Census Appearances
1930
Sacramento, California
Head, age 47
Sacramento, California · implied b. ~1883 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Monroe |
| Given Name | John D. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 37 |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | Nova Scotia |
| Occupation | Motorman |
| Industry | Electric Railway |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 35 |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Sacramento-County, California
Head, age 58
Sacramento-County, California · implied b. ~1882 — 7 household members
| Surname | Monroe |
| Given Name | John D |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 58 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Sacramento |
| 1935 Residence (County) | Sacramento |
| Occupation | motorman |
| Industry | electric r. r. |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 2235 |
| Highest Grade | Hs 4 |
| 1935 Residence | California |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 Monroe across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Monroe
Head · 1940 · age 58 · b. ~1882 · California
★ 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 — Sacramento-County, California
Open full size
1940 US Federal Census — Sacramento-County, California
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00280-00156)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Wayne E Miner | 35 | Head | Truck Driver | California |
| 2 | Florence H Miner | 35 | Wife | — | California |
| 3 | James E Miner | 11 | Son | — | California |
| 4 | Robert E Miner | 0 | Son | — | California |
| 5 | Guy E Miner | 37 | Head | Poultryman | Oklahoma |
| 6 | Arline E Miner | 33 | Wife | Assistant | Minnesota |
| 7 | Soren O Brekke | 71 | Father-in-law | — | Norway |
| 8 | George Hansen | 62 | Head | Poultryman | Nebraska |
| 9 | Nina M Hansen | 50 | Wife | — | Kansas |
| 10 | Juanita Hansen | 14 | Daughter | — | California |
| 11 | Fred W Hunting | 55 | Head | Clerical Work | California |
| 12 | Violet A Hunting | 41 | Wife | — | California |
| 13 | Violet A Hunting | 22 | Daughter | — | California |
| 14 | Frederick Jr Hunting | 20 | Son | Bottler | California |
| 15 | Carole L Hunting | 6 | Daughter | — | California |
| 16 | Janice Hunting | 5 | Daughter | — | California |
| 17 | Henry Boone | 66 | Father-in-law | — | California |
| 18 | Lizzie Boone | 64 | Mother-in-law | — | California |
| 19 | George Tingell | 57 | Head | — | Norway |
| 20 | Frederick H Rodriguez | 41 | Head | Machinist | Germany |
| 21 | Barbara M Rodriguez | 29 | Wife | — | Canada |
| 22 | Raymond Rodriguez | 11 | Son | — | California |
| 23 | Hugh W Murphy | 68 | Head | — | Scotland |
| 24 | Rachel M Murphy | 68 | Wife | — | England |
| 25 | S. C. Chapman | 61 | Head | Contractor | Canada |
| 26 | Nora Chapman | 58 | Wife | — | Michigan |
| 27 | John D Monroe THIS PERSON | 58 | Head | Motorman | Pennsylvania |
| 28 | Muriel A Monroe | 40 | Wife | — | California |
| 29 | Rosalie A Monroe | 17 | Daughter | — | California |
| 30 | Agnes M Monroe | 15 | Daughter | — | California |
| 31 | Elizabeth J Monroe | 10 | Daughter | — | California |
| 32 | John Jr Monroe | 7 | Son | — | California |
| 33 | Maude Smith | 2 | Lodger | — | New York |
| 34 | Archie Mongean | 55 | Head | Manager | Illinois |
| 35 | Iona Mongean | 54 | Wife | — | Minnesota |
| 36 | Donald Mongean | 25 | Son | Poultryman | Minnesota |
| 37 | Kenneth Mongean | 20 | Son | Salesman | Minnesota |
| 38 | Doreen Mongean | 17 | Daughter | — | Minnesota |
| 39 | Noreen Mongean | 17 | Daughter | — | Minnesota |
| 40 | Thorberg Sveinson | 62 | Head | — | Canada |
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)