MS
Margaret Simpson — 1920 US Census Record
Linked across censuses1920 United States Federal Census · San Francisco, California
Our Model Tree links this Margaret Simpson across the 1910 and 1920 US Censuses in San Francisco, California (XGBoost, ~Confirmed) — first a daughter (b.~1907), then head of a 7-person household.
Age 13
b. ~1907
Female
Daughter
Born: California
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | San Francisco, California |
| Surname | Simpson |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Kansas |
| Mother's Birthplace | Missouri |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Township / Ward | City Of San Francisco |
| Est. Birth Year | ~1907 |
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.
7 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Leona Simpson | Daughter | — | 11 | ~1909 |
| Margaret Simpson | Daughter | — | 13 | ~1907 |
| Charles Simpson | Head | — | 35 | ~1885 |
| Percy Simpson | Son | — | 14 | ~1906 |
| Lula Simpson | Spouse | — | 31 | ~1889 |
| Charles Simpson | Son | — | 7 | ~1913 |
| Stewart Simpson | Son | — | 9 | ~1911 |
Census Appearances
1910
San Francisco, …
Daughter, age 4
San Francisco, California · implied b. ~1906 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Simpson |
| Given Name | Margaret M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Kansas |
| Mother's Birthplace | Missouri |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1920
San Francisco, …
Daughter, age 13
San Francisco, California · implied b. ~1907 — 7 household members
| Surname | Simpson |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Kansas |
| Mother's Birthplace | Missouri |
| 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 Simpson across 2 US Census years (1910 and 1920) in San Francisco, California, using XGBoost record linkage.
Show:
This person
Anchor record
Margaret Simpson
Daughter · 1920 · age 13 · b. ~1907 · California
★ You are viewing this record
Sibling
Leona Simpson
Sibling · 1920 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Stewart Simpson
Sibling · 1920 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Simpson
Sibling · 1920 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Percy Simpson
Sibling · 1920 · age 14
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:1920:14thcensusofpopu140unit:0729)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Hilbert Grossman | 1 | Son | — | California |
| 52 | May Souza | 25 | Servant | Maid | Hawaii |
| 53 | Eustacio Rodriguez | 42 | Head | Salesman | California |
| 54 | Florence Rodriguez | 34 | Wife | — | Australia |
| 55 | W. Russell Cole | 36 | Head | Broker | Iowa |
| 56 | Sella Russell Cole | 61 | Mother | — | Indiana |
| 57 | Harriet B. Russell | 79 | Grand Mother | — | Indiana |
| 58 | James L. Cartridge | 22 | Head | Agent | California |
| 59 | Dorothy Cartridge | 18 | Wife | — | Massachusetts |
| 60 | Eleanor Pomeroy | 37 | Mother in law | — | Ohio |
| 61 | Alfred Lewis | 14 | Boarder | — | California |
| 62 | Henry W. Mahr | 38 | Head | Manufacturer | California |
| 63 | Blanche Fischer | 34 | Sister | — | California |
| 64 | Ruth Fischer | 11 | Niece | — | California |
| 65 | Fannie M. Burke | 58 | Servant | Maid | Massachusetts |
| 66 | Ernest Thom | 53 | Head | Manager | Washington |
| 67 | Hilda Thom | 46 | Wife | — | California |
| 68 | Marjorie Thom | 21 | Daughter | Student | California |
| 69 | Arthur G. Bowles | 39 | Head | Manager | New York |
| 70 | Marion L. Bowles | 34 | Wife | — | Illinois |
| 71 | Frances Bowles | 5 | Daughter | — | California |
| 72 | Paul Liersch | 52 | Head | Merchant | Germany |
| 73 | Mindell Liersch | 33 | Wife | — | California |
| 74 | Isabel Mckenzie | 38 | Servant | Servant | Canada |
| 75 | Lucile Smith | 40 | Head | President | California |
| 76 | Juliet Smith | 43 | Sister | Registrar | California |
| 77 | Lycilla Bates Smith | 74 | Mother | — | Michigan |
| 78 | Edward J. Mitchell | 45 | Head | Salesman | California |
| 79 | Adeline Mitchell | 41 | Wife | — | California |
| 80 | Aileen Mitchell | 18 | Daughter | Student | California |
| 81 | Julia Everett | 62 | Mother in law | — | California |
| 82 | Ruth Hazell | 11 | Boarder | — | California |
| 83 | Seely S. Ellis | 69 | Head | Merchant | New York |
| 84 | Susan Ellis | 76 | Wife | — | Scotland |
| 85 | Florence Snodgrass | 37 | Daughter | Saleslady | California |
| 86 | Robert Snodgrass | 12 | Grandson | — | California |
| 87 | Florence Snodgrass | 10 | Granddaughter | — | California |
| 88 | John G. Snodgrass | 8 | Grandson | — | California |
| 89 | Francis N. Donovan | 48 | Head | Carpenter | California |
| 90 | Susan Donovan | 51 | Wife | — | California |
| 91 | John B. Maxwell | 58 | Head | Fireman | California |
| 92 | Minnie Maxwell | 58 | Wife | — | New York |
| 93 | Gladys Barrett | 14 | Boarder | Student | California |
| 94 | Charles Simpson | 35 | Head | Plumber | Kansas |
| 95 | Lula Simpson | 31 | Wife | — | Missouri |
| 96 | Percy Simpson | 14 | Son | Errand Boy | California |
| 97 | Margaret Simpson THIS PERSON | 13 | Daughter | — | California |
| 98 | Leona Simpson | 11 | Daughter | — | California |
| 99 | Stewart Simpson | 9 | Son | — | California |
| 100 | Charles Simpson | 7 | Son | — | California |
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)