MR
Mary Rossi — 1940 US Census Record
Linked across censuses1940 United States Federal Census · San-Francisco-County, California
Our Model Tree links this Mary Rossi across the 1930 and 1940 US Censuses in San-Francisco-County, California (XGBoost, ~Confirmed) — first a spouse (b.~1890), then head of a 5-person household.
Age 50
b. ~1890
Female
Spouse
Born: California
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | San-Francisco-County, California |
| Surname | Rossi |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | California |
| 1935 Residence (City) | San Francisco |
| 1935 Residence (County) | San Francisco |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Township / Ward | San Francisco |
| 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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Rossi | Spouse | — | 50 | ~1890 |
| Helen Rossi | Daughter | — | 14 | ~1926 |
| James Rossi | Head | — | 50 | ~1890 |
| John Rossi | Son | — | 19 | ~1921 |
| Margaret Rossi | Daughter | — | 21 | ~1919 |
Census Appearances
1930
San Francisco, …
Spouse, age 40
San Francisco, California · implied b. ~1890 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Rossi |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | California |
| Age at First Marriage | 26 |
| Father's Birthplace | Italy |
| Mother's Birthplace | Italy |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
San-Francisco-County, California
Spouse, age 50
San-Francisco-County, California · implied b. ~1890 — 5 household members
| Surname | Rossi |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | California |
| 1935 Residence (City) | San Francisco |
| 1935 Residence (County) | San Francisco |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
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 Mary Rossi across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Rossi
Spouse · 1940 · age 50 · b. ~1890 · California
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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 — San-Francisco-County, California
Open full size
1940 US Federal Census — San-Francisco-County, California
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00309-00034)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Kate Hanlon | 65 | Head | — | Irish Free State |
| 42 | Melvin Hanlon | 41 | Son | — | California |
| 43 | Clarence Hanlon | 36 | Son | Janitor | California |
| 44 | Kathleen Hanlon | 12 | Granddaughter | — | California |
| 45 | Albert Luppens | 35 | Head | House Painter | Missouri |
| 46 | Anita Luppens | 35 | Wife | — | Canada French |
| 47 | Grace Luppens | 11 | Daughter | — | California |
| 48 | Gerald Luppens | 9 | Son | — | California |
| 49 | Annette Luppens | 2 | Daughter | — | California |
| 50 | Esther Dahlman | 66 | Head | — | Kansas |
| 51 | Sidney Stark | 43 | Head | Welder | England |
| 52 | Dorothy Stark | 45 | Wife | — | England |
| 53 | Marian Stark | 11 | Daughter | — | Australia |
| 54 | Christine Perry | 52 | Head | Practical Nurse | California |
| 55 | Harold Perry | 33 | Son | Salesman | California |
| 56 | Frank Lamey | 41 | Head | Fireman | California |
| 57 | Florence Lamey | 39 | Wife | Stenographer | California |
| 58 | Robert Smith | 60 | Head | Journeyman | California |
| 59 | Julia Smith | 59 | Wife | — | California |
| 60 | Robert Smith | 31 | Son | Pharmacist | California |
| 61 | Lucille Lucille | 29 | Daughter | Complementary | California |
| 62 | Dorothy Lucille | 6 | Granddaughter | — | California |
| 63 | George Etzel | 52 | Head | Cook | Kansas |
| 64 | Esther Etzel | 52 | Wife | — | Denmark |
| 65 | Jake Etzel | 43 | Head | Cook | Kansas |
| 66 | Mary Etzel | 25 | Wife | Waitress | California |
| 67 | James Rossi | 50 | Head | Box Maker | Italy |
| 68 | Mary Rossi THIS PERSON | 50 | Wife | — | California |
| 69 | Margaret Rossi | 21 | Daughter | New Worker | California |
| 70 | John Rossi | 19 | Son | Mechanic Helper | California |
| 71 | Helen Rossi | 14 | Daughter | — | California |
| 72 | Frank Ferlig | 36 | Head | Shipping Clerk | California |
| 73 | Eleanor Ferlig | 41 | Wife | — | California |
| 74 | Donald Ferlig | 5 | Son | — | California |
| 75 | Annette Ferlig | 1 | Daughter | — | California |
| 76 | Nutting Bachelder | 71 | Head | — | Iowa |
| 77 | Belle Bachelder | 53 | Wife | — | Montana |
| 78 | John Mc Reynolds | 36 | Son in law | Mattress Maker | California |
| 79 | Mildred Mc Reynolds | 31 | Daughter | Bookkeeper | Washington |
| 80 | Katherine Brown | 45 | Lodger | — | California |
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)