MH
Mary Healy — 1920 US Census Record
Linked across censuses1920 United States Federal Census · San Francisco, California
Our Model Tree links this Mary Healy across the 1920, 1930 and 1940 US Censuses in San Francisco, California (XGBoost, ~Confirmed) — first a spouse (b.~1876), then head of a 6-person household.
Age 44
b. ~1876
Female
Spouse
Born: Nevada
Married
1920 Census Record Details
| Census Year | 1920 |
| Location | San Francisco, California |
| Surname | Healy |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Nevada |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Occupation | Retail Grocer |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Nevada |
| Birth Country | United States |
| Birthplace (normalized) | nevada |
| Occupation | Retail Grocer |
| Township / Ward | Assembly 29 Precinct 55 |
| Est. Birth Year | ~1876 |
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 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Eileen Healy | Daughter | — | 9 | ~1911 |
| Thomas Healy | Head | — | 47 | ~1873 |
| Ellen Walsh | Other | — | 67 | ~1853 |
| Thomas Healy | Son | — | 7 | ~1913 |
| John Healy | Son | — | 14 | ~1906 |
| Mary Healy | Spouse | — | 44 | ~1876 |
Census Appearances
1920
San Francisco, …
Spouse, age 44
San Francisco, California · implied b. ~1876 — 6 household members
| Surname | Healy |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Nevada |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Retail Grocer |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Nevada |
| Birth Country | United States |
| Birthplace (normalized) | nevada |
1930
San Francisco, …
Spouse, age 54
San Francisco, California · implied b. ~1876 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Halley |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Nevada |
| Age at First Marriage | 24 |
| Father's Birthplace | Nevada |
| Mother's Birthplace | Nevada |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Nevada |
| Birth Country | United States |
| Birthplace (normalized) | nevada |
1940
San-Francisco-County, California
Spouse, age 65
San-Francisco-County, California · implied b. ~1875 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Holly |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 65 |
| Marital Status | Married |
| Birthplace | Nevada |
| 1935 Residence (City) | San Francisco |
| 1935 Residence (County) | San Francisco |
| Highest Grade | H 4 |
| 1935 Residence | Same Place |
| Birth State | Nevada |
| Birth Country | United States |
| Birthplace (normalized) | nevada |
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 Healy 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 Healy
Spouse · 1920 · age 44 · b. ~1876 · California
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1920 US Federal Census — San Francisco, California
Open full size
1920 US Federal Census — San Francisco, California
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu133unit:0405)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John Young | 56 | Head | Police Officer | Calif |
| 2 | Lillian Young | 40 | Wife | — | Calif |
| 3 | Fred Landis | 36 | Lodger | Lapidary | France |
| 4 | Talbe Manson | 34 | Lodger | — | Sweden |
| 5 | John Stamat | 38 | Lodger | Laborer | Greece |
| 6 | Samuel Schroeder | 60 | Head | Carpenter | Germany |
| 7 | Teresa Schroeder | 75 | Wife | — | Germany |
| 8 | Wm. Schroeder | 40 | Son | Junk Dealer | Germany |
| 9 | Fred Quahl | 18 | Boarder | Messenger | Calif |
| 10 | Sherman Stanley | 31 | Head | Clerk | Calif |
| 11 | Margaret Stanley | 29 | Wife | — | New Jersey |
| 12 | Sherman Jr. Stanley | 5 | Son | — | Calif |
| 13 | James Buzzell | 49 | Head | Cabinet-Maker | Georgia |
| 14 | Clara Buzzell | 47 | Wife | — | Kansas |
| 15 | Archer Buzzell | 21 | Son | Lithographer | Georgia |
| 16 | Herbert Buzzell | 11 | Son | Electrician Helper | Calif |
| 17 | Eugene Buzzell | 9 | Son | — | Calif |
| 18 | Laura O'Connor | 57 | Head | — | Calif |
| 19 | Tom Lewis | 37 | Boarder | Representative | Missouri |
| 20 | Marie Lewis | 40 | Daughter | — | Calif |
| 21 | Geo Catchulis | 27 | Lodger | Truck Driver | Greece |
| 22 | Grace White | 26 | Lodger | Cashier | Oregon |
| 23 | Thomas Healy | 47 | Head | Retail Grocer | Ireland |
| 24 | Mary Healy THIS PERSON | 44 | Wife | Retail Grocer | Nevada |
| 25 | John Healy | 14 | Son | — | Nevada |
| 26 | Eileen Healy | 9 | Daughter | — | Nevada |
| 27 | Thomas Healy | 7 | Son | — | Calif |
| 28 | Ellen Walsh | 67 | Mother-in-law | — | Ireland |
| 29 | Claude Parsons | 36 | Head | Cook | Wash |
| 30 | Lillian Parsons | 25 | Wife | — | Colo |
| 31 | Pauline Wallace | 37 | Head | Dressmaker | Michigan |
| 32 | Helen Wallace | 15 | Daughter | Usheress | Calif |
| 33 | Mildred Wallace | 10 | Daughter | — | Calif |
| 34 | Jerry Seymour | 42 | Head | Bowling Alley | Ireland |
| 35 | Julia Seymour | 42 | Wife | — | Ireland |
| 36 | Kathleen Seymour | 17 | Daughter | — | Calif |
| 37 | William Seymour | 15 | Son | — | Calif |
| 38 | Edward Seymour | 13 | Son | — | Calif |
| 39 | Timothy Seymour | 3 | Son | — | Calif |
| 40 | Patrick Hegarty | 39 | Lodger | Police Officer | Ireland |
| 41 | Mary Galloway | 52 | Head | — | Illinois |
| 42 | Thomas Galloway | 36 | Son | Printer | Missouri |
| 43 | Ralph Galloway | 23 | Son | Clerk | Calif |
| 44 | Guy Galloway | 21 | Son | Ship-Fitter | Calif |
| 45 | Adele Galloway | 15 | Daughter | Saleslady | Calif |
| 46 | Otto Pearson | 53 | Head | Machinist | Sweden |
| 47 | Alma Pearson | 28 | Wife | — | Sweden |
| 48 | Carl Pearson | 1 | Son | — | Calif |
| 49 | Eric Miller | 42 | Head | Butcher | Germany |
| 50 | Martha Miller | 40 | Wife | — | Germany |
Related Census Records
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)