MH
Mary Hickman — 1930 US Census Record
Linked across censuses1930 United States Federal Census · San Francisco, California
Our Model Tree links this Mary Hickman across the 1920, 1930 and 1940 US Censuses in San Francisco, California (XGBoost, ~Confirmed) — first a spouse (b.~1887), then head of a 4-person household.
Age 43
b. ~1887
Female
Spouse
Born: Washington
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | San Francisco, California |
| Surname | Hickman |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Washington |
| Age at First Marriage | 19 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Additional Details | |
| Occupation | Manella |
| Industry | Beauty Shop |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
| Occupation | Manella |
| Township / Ward | San Francisco City |
| Est. Birth Year | ~1887 |
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.
4 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Ellen Hickman | Daughter | — | 22 | ~1908 |
| Mary Hickman | Spouse | — | 43 | ~1887 |
| Alex Hickman | Son | — | 20 | ~1910 |
| Raymond Hickman | Head | — | 49 | ~1881 |
Census Appearances
1920
San Francisco, …
Other, age 33
San Francisco, California · implied b. ~1887 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Heckman |
| Given Name | Mary C. |
| Relationship to Head | daughter-in-law |
| Sex | F |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Washington |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Swedish |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1930
San Francisco, …
Spouse, age 43
San Francisco, California · implied b. ~1887 — 4 household members
| Surname | Hickman |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Washington |
| Age at First Marriage | 19 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Manella |
| Industry | Beauty Shop |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1940
San-Francisco-County, California
Other, age 53
San-Francisco-County, California · implied b. ~1887 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Heckman |
| Given Name | Mary |
| Relationship to Head | Lodger |
| Sex | F |
| Color / Race | White |
| Age | 53 |
| Marital Status | Widowed |
| Birthplace | Washington |
| 1935 Residence (City) | San Francisco |
| 1935 Residence (County) | San Francisco |
| Occupation | Saleslady |
| Industry | Retail Department Store |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1200 |
| Highest Grade | No 7 |
| 1935 Residence | Same Place |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
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 Hickman across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Hickman
Spouse · 1930 · age 43 · b. ~1887 · California
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — San Francisco, California
Open full size
1930 US Federal Census — San Francisco, California
Page Contents
50 people indexed on this census page (ia:1930:californiacensus00reel201:0127)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Frances Mack | 30 | Head | Stenog | Missouri |
| 2 | Frances Mack | 6 | Daughter | — | Calif |
| 3 | Ellen Foley | 68 | Mother | — | Norway |
| 4 | Roy Melat | 33 | Head | Carpenter | Michigan |
| 5 | Marion Melat | 30 | Wife | — | Connecticut |
| 6 | Jane Melat | 5 | Daughter | — | California |
| 7 | Siegfried Faumeister | 71 | Head | — | California |
| 8 | Clarence J. Faumeister | 47 | Son | Attorney | California |
| 9 | Niels Faunstein | 55 | Head | Mechanic | Denmark |
| 10 | Mary Faunstein | 20 | Daughter | Draftswoman | California |
| 11 | C. M. Sweeney | 63 | Lodger | — | New Jersey |
| 12 | Alfred Tess | 34 | Head | Painter | California |
| 13 | Ruby Tess | 25 | Wife | — | Texas |
| 14 | Harold Tess | 7 | Son | — | California |
| 15 | Alfred Jr. Tess | 4 | Son | — | California |
| 16 | Giacomo Carabochia | 59 | Head | — | Italy |
| 17 | Anna Carabochia | 33 | Daughter | Nurse | California |
| 18 | Henry Tessin | 30 | Head | Mechanic | Germany |
| 19 | Wilhelmina Tessin | 35 | Wife | — | Germany |
| 20 | David Johnston | 50 | Head | Janitor | Sweden |
| 21 | Amy Johnston | 45 | Wife | — | Sweden |
| 22 | David Johnston | 12 | Son | — | California |
| 23 | Helen Johnston | 10 | Daughter | — | California |
| 24 | Augusta Foster | 54 | Head | Dressmaker | Germany |
| 25 | Ernest Koonh | 47 | Head | Chauffeur | Germany |
| 26 | Bertha Koonh | 42 | Wife | — | Germany |
| 27 | Rudolph Koonh | 5 | Son | — | California |
| 28 | Herman Monnich | 62 | Head | Forman | Germany |
| 29 | Sophie Monnich | 62 | Wife | Cashier | Germany |
| 30 | Rufus Alcorn | 38 | Head | Pattern | California |
| 31 | Elsie Alcorn | 36 | Wife | Clerk | California |
| 32 | William Pickett | 75 | Head | Retired | California |
| 33 | Josephine Pickett | 66 | Wife | — | Missouri |
| 34 | Hans Hansen | 65 | Head | Retired | Denmark |
| 35 | Johanna Hansen | 57 | Wife | — | Denmark |
| 36 | Thomas White | 54 | Head | — | Scotland |
| 37 | Margaret White | 37 | Daughter | Milliner | England |
| 38 | James Campbell | 10 | Nephew | — | Massachusetts |
| 39 | George Terry | 60 | Head | Clerk | California |
| 40 | Jane Terry | 58 | Wife | — | California |
| 41 | Helen Terry | 20 | Daughter | Secretary | California |
| 42 | Hugh Isaac | 67 | Head | Retired | Scotland |
| 43 | Emily Isaac | 67 | Wife | — | Scotland |
| 44 | William Isaac | 38 | Son | Chauffeur | Washington |
| 45 | Sam Miller | 63 | Head | Clerk | Michigan |
| 46 | Ellen Miller | 57 | Wife | — | California |
| 47 | Raymond Hickman | 49 | Head | Supervisor | Kentucky |
| 48 | Mary Hickman THIS PERSON | 43 | Wife | Manella | Washington |
| 49 | Ellen Hickman | 22 | Daughter | — | Washington |
| 50 | Alex Hickman | 20 | Son | Clerk | Oregon |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)