MW
Margaret Walsh — 1920 US Census Record
Linked across censuses1920 United States Federal Census · San Francisco, California
Our Model Tree links this Margaret Walsh across the 1910 and 1920 US Censuses in San Francisco, California (XGBoost, ~Confirmed) — first a daughter (b.~1910), then head of a 10-person household.
Age 10
b. ~1910
Female
Daughter
Born: California
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | San Francisco, California |
| Surname | Walsh |
| Given Name | Margaret |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Township / Ward | San Francisco City |
| Est. Birth Year | ~1910 |
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.
10 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Annie Walsh | Daughter | — | 17 | ~1903 |
| Catherine Walsh | Daughter | — | 20 | ~1900 |
| Margaret Walsh | Daughter | — | 10 | ~1910 |
| Cecilia Walsh | Daughter | — | 14 | ~1906 |
| Nellie Walsh | Daughter | — | 19 | ~1901 |
| Bessie Walsh | Daughter | — | 8 | ~1912 |
| Mary Walsh | Daughter | — | 21 | ~1899 |
| Michael Walsh | Head | — | 52 | ~1868 |
| James Walsh | Son | — | 17 | ~1903 |
| Bridget Walsh | Spouse | — | 44 | ~1876 |
Census Appearances
1910
San Francisco, …
Daughter, age
San Francisco, California · implied b. ~1910 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Walsh |
| Given Name | Mary Agnes |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | none |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1920
San Francisco, …
Daughter, age 10
San Francisco, California · implied b. ~1910 — 10 household members
| Surname | Walsh |
| Given Name | Margaret |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| 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 Margaret Walsh across 2 US Census years (1910 and 1920) in San Francisco, California, using XGBoost record linkage.
Show:
This person
Anchor record
Margaret Walsh
Daughter · 1920 · age 10 · b. ~1910 · California
★ You are viewing this record
Sibling
Cecilia Walsh
Sibling · 1920 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Walsh
Sibling · 1920 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Walsh
Sibling · 1920 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Annie Walsh
Sibling · 1920 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Walsh
Sibling · 1920 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bessie Walsh
Sibling · 1920 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Nellie Walsh
Sibling · 1920 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
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:0226)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Chris Calogeropoulos | 29 | lodger | Machinist | Greece |
| 2 | Katerina Calogeropoulos | 29 | lodger | Machinist | Greece |
| 3 | Mary Calogeropoulos | 25 | lodger | None | Greece |
| 4 | Henry Callahan | 38 | head | Machinist | California |
| 5 | Helen Callahan | 26 | wife | None | California |
| 6 | John Bong | 56 | head | Presser | England |
| 7 | Margaret Dougherty | 52 | head | Waitress | Scotland |
| 8 | Mary Dougherty | 11 | daughter | None | California |
| 9 | Charles Dougherty | 10 | son | None | California |
| 10 | Nellie Clark | 50 | head | Chambermaid | Ireland |
| 11 | Sam Costopoulos | 39 | head | Laborer | Greece |
| 12 | Stamatina Costopoulos | 34 | wife | None | Greece |
| 13 | Mike Manos | 43 | lodger | Laborer | Greece |
| 14 | Harriet Manos | 40 | lodger | None | Greece |
| 15 | Thelma Manos | 15 | lodger | — | Greek |
| 16 | Michael Walsh | 52 | head | Foreman | Ireland |
| 17 | Bridget Walsh | 44 | wife | None | Ireland |
| 18 | Mary Walsh | 21 | daughter | Clerk | California |
| 19 | Catherine Walsh | 20 | daughter | Clerk | California |
| 20 | Nellie Walsh | 19 | daughter | Stenographer | California |
| 21 | Annie Walsh | 17 | daughter | Stenographer | California |
| 22 | James Walsh | 17 | son | None | California |
| 23 | Cecilia Walsh | 14 | daughter | None | California |
| 24 | Margaret Walsh THIS PERSON | 10 | daughter | None | California |
| 25 | Bessie Walsh | 8 | daughter | None | California |
| 26 | Meyer Cahn | 47 | head | Owner | Texas |
| 27 | Mary Cahn | 43 | wife | None | Texas |
| 28 | Spaddie Cahn | 17 | son | Electrician | Texas |
| 29 | Saul Cahn | 13 | son | None | Texas |
| 30 | Dennis Quigley | 54 | head | Teamster | Ireland |
| 31 | Rose Quigley | 52 | wife | None | Ireland |
| 32 | James Quigley | 23 | son | Blacksmith | California |
| 33 | Mary J. Quigley | 17 | daughter | None | California |
| 34 | Annie Meehan | 26 | daughter | None | California |
| 35 | Ethel Meehan | 3 | granddaughter | None | California |
| 36 | George Meehan | 1 | grandson | None | California |
| 37 | Robert Taylor | 36 | lodger | Teamster | Kentucky |
| 38 | James Miller | 74 | lodger | None | Ireland |
| 39 | Thomas Barnes | 38 | lodger | Watchman | Canada |
| 40 | Charles Starnesgard | 20 | lodger | Laborer | Norway |
| 41 | Harry Donohue | 52 | lodger | Laborer | Ireland |
| 42 | Fred Gardner | 48 | lodger | Laborer | Scotland |
| 43 | Oscar Noyes | 49 | lodger | Laborer | U.S. |
| 44 | Jacques Noyes | 29 | lodger | Mechanic | Maryland |
| 45 | Frank Kovajich | 52 | lodger | Painter | Bohemia |
| 46 | Mary Kovajich | 53 | lodger | Salesman | Germany |
| 47 | Catherine Kovajich | 20 | lodger | Typist | Germany |
| 48 | Mary Kovajich | 18 | lodger | Typist | Austria |
| 49 | Frank Kovajich | 16 | lodger | Clerk | Austria |
| 50 | Charles Kovajich | 14 | lodger | None | Austria |
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)