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John Marsh — 1940 US Census Record
Linked across censuses1940 United States Federal Census · San-Francisco-County, California
Our Model Tree links this John Marsh across the 1930 and 1940 US Censuses in San-Francisco-County, California (XGBoost, ~Confirmed) — first a head (b.~1906), then head of a 6-person household.
Age 34
b. ~1906
Male
Head
Born: California
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | San-Francisco-County, California |
| Surname | Marsh |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | California |
| 1935 Residence (City) | San Francisco |
| 1935 Residence (County) | San Francisco |
| Additional Details | |
| Occupation | clerk |
| Industry | post ofc. |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 2100 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Occupation | Clerk |
| Township / Ward | San Francisco |
| Est. Birth Year | ~1906 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Barbara Marsh | Daughter | — | 5 | ~1935 |
| John Marsh | Son | — | 8 | ~1932 |
| Betty Marsh | Spouse | — | 30 | ~1910 |
| John Marsh | Head | — | 34 | ~1906 |
| James Marsh | Son | — | 3 | ~1937 |
| Jean Marsh | Daughter | — | 3 | ~1937 |
Census Appearances
1930
San Francisco, …
Other, age 24
San Francisco, California · implied b. ~1906 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Marsh |
| Given Name | John |
| Relationship to Head | Brother |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Iowa |
| Mother's Birthplace | New York |
| Occupation | Clerk |
| Industry | Post office |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
San-Francisco-County, California
Head, age 34
San-Francisco-County, California · implied b. ~1906 — 6 household members
| Surname | Marsh |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | California |
| 1935 Residence (City) | San Francisco |
| 1935 Residence (County) | San Francisco |
| Occupation | clerk |
| Industry | post ofc. |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 2100 |
| Highest Grade | No 8 |
| 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 John Marsh across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Marsh
Head · 1940 · age 34 · b. ~1906 · 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-t0627-00310-00965)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Charles Yagger | 17 | Son | — | Montana |
| 42 | Helen Reichert | 54 | Head | — | Germany |
| 43 | Ferdinan Reichert | 34 | Son | Laborer | California |
| 44 | William Reichert | 33 | Son | Helper Roof | California |
| 45 | John Marsh THIS PERSON | 34 | Head | Clerk | California |
| 46 | Betty Marsh | 30 | Wife | — | California |
| 47 | John V. Marsh | 8 | Son | — | California |
| 48 | Barbara Marsh | 5 | Daughter | — | California |
| 49 | James E. Marsh | 3 | Son | — | California |
| 50 | Jean Eleanor Marsh | 3 | Daughter | — | California |
| 51 | Mary Boscacci | 69 | Head | Pension | Switzerland |
| 52 | Earl Scribner | 35 | Head | Teamster | Kentucky |
| 53 | Clara Scribner | 44 | Wife | — | California |
| 54 | James Scribner | 5 | Son | — | California |
| 55 | John Davenport | 42 | Head | Salesman | New York |
| 56 | Arletta Davenport | 33 | Wife | — | Illinois |
| 57 | Jean Davenport | 12 | Son | — | Kansas |
| 58 | Edith Foley | 56 | Mother-in-law | — | Kansas |
| 59 | Antonio Silva | 70 | Head | Waterman | Portugal |
| 60 | Jessie Silva | 59 | Wife | — | Portugal |
| 61 | Arthur Silva | 36 | Son | Auto Polisher | California |
| 62 | James A. Fitzgerald | 59 | Head | — | California |
| 63 | Alice A. Fitzgerald | 56 | Wife | — | California |
| 64 | John Fitzgerald | 32 | Head | Investigator Social Service | California |
| 65 | Helen Fitzgerald | 31 | Wife | — | California |
| 66 | James Fitzgerald | 3 | Son | — | California |
| 67 | Gladys De Witt | 32 | Head | — | Washington |
| 68 | Donald De Witt | 12 | Son | — | California |
| 69 | Barbara De Witt | 11 | Daughter | — | California |
| 70 | Yvonne De Witt | 8 | Daughter | — | California |
| 71 | Myrtle Klingler | 55 | Head | — | Wisconsin |
| 72 | Nelson Klingler | 23 | Son | Clerk | California |
| 73 | Donald Adams | 18 | Foster son | Clerk | California |
| 74 | Holly Adams | 17 | Daughter | — | California |
| 75 | Ruby Krajnovich | 17 | Lodger | — | California |
| 76 | George Krajnovich | 13 | Lodger | — | California |
| 77 | Peter Krajnovich | 10 | Lodger | — | California |
| 78 | John Jos. Cronin | 37 | Head | Laborer | Pennsylvania |
| 79 | Delia Cronin | 40 | Wife | — | Ireland Free State |
| 80 | Kathleen Cronin | 14 | Daughter | — | 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)