ML
Mary Lawson — 1930 US Census Record
Linked across censuses1930 United States Federal Census · San Francisco, California
Our Model Tree links this Mary Lawson across the 1930 and 1940 US Censuses in San Francisco, California (XGBoost, ~Confirmed) — first a daughter (b.~1928), then head of a 9-person household.
Age 2
b. ~1928
Female
Daughter
Born: California
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | San Francisco, California |
| Surname | Lawson |
| Given Name | Mary J |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Additional Details | |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Township / Ward | San Francisco City |
| Est. Birth Year | ~1928 |
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.
9 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Veronica Lawson | Daughter | — | 4 | ~1926 |
| Mary Lawson | Daughter | — | 2 | ~1928 |
| Frank Lawson | Head | — | 41 | ~1889 |
| Dorothy Lawson | Other | — | 38 | ~1892 |
| Charles Lawson | Other | — | 50 | ~1880 |
| Albert Lawson | Son | — | 10 | ~1920 |
| Charles Lawson | Son | — | ~1930 | |
| Frank Lawson | Son | — | 11 | ~1919 |
| Mary Lawson | Spouse | — | 36 | ~1894 |
Census Appearances
1930
San Francisco, …
Daughter, age 2
San Francisco, California · implied b. ~1928 — 9 household members
| Surname | Lawson |
| Given Name | Mary J |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
San-Francisco-County, California
Daughter, age 13
San-Francisco-County, California · implied b. ~1927 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lawson |
| Given Name | Maude |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | San Francisco City |
| 1935 Residence (County) | San Francisco |
| Highest Grade | H 7 |
| 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 Mary Lawson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Lawson
Daughter · 1930 · age 2 · b. ~1928 · California
★ You are viewing this record
Sibling
Charles Lawson
Sibling · 1930 · age
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Albert Lawson
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Veronica Lawson
Sibling · 1930 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frank Lawson
Sibling · 1930 · age 11
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
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:californiacensus00reel200:0353)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Edward A Hansen | 50 | Head | Salesman | California |
| 2 | Edna M Hansen | 42 | Wife | — | California |
| 3 | Edna V Hansen | 14 | Daughter | — | California |
| 4 | Gerald B Hansen | 11 | Son | — | California |
| 5 | Joseph Hurley | 70 | Uncle | Bookkeeper | California |
| 6 | Elizabeth Crowe | 72 | Mother-in-law | — | California |
| 7 | Jennie Johnson | 56 | Head | — | Sweden |
| 8 | Velma Johnson | 14 | Daughter | — | California |
| 9 | Philip Johnson | 12 | Son | — | California |
| 10 | Mary Ashe | 30 | Roomer | Stenographer | California |
| 11 | Jack Ashe | 8 | Roomer | — | California |
| 12 | Lily Ashe | 3 | Roomer | — | California |
| 13 | Arthur L Pruitt | 45 | Head | Contractor | Missouri |
| 14 | Alma Pruitt | 49 | Wife | — | California |
| 15 | Frank E Lawson | 41 | Head | Contractor | California |
| 16 | Mary F Lawson | 36 | Wife | — | California |
| 17 | Frank Jr Lawson | 11 | Son | — | California |
| 18 | Albert A Lawson | 10 | Son | — | California |
| 19 | Veronica M Lawson | 4 | Daughter | — | California |
| 20 | Mary J Lawson THIS PERSON | 2 | Daughter | — | California |
| 21 | Charles A Lawson | 0 | Son | — | California |
| 22 | Dorothy M Lawson | 38 | Sister | Bookkeeper | California |
| 23 | Charles G Lawson | 50 | Brother | Solicitor | California |
| 24 | Frank Sullivan | 50 | Head | Inspector | California |
| 25 | Mary Sullivan | 48 | Wife | — | California |
| 26 | Raymond Sullivan | 23 | Son | Teacher | California |
| 27 | Frances Sullivan | 14 | Daughter | — | California |
| 28 | Catherine Smith | 67 | Mother-in-law | — | Irish Free State |
| 29 | Lena Beverly | 50 | Head | Manufacturer | South Carolina |
| 30 | Tracy Beverly | 45 | Wife | — | Illinois |
| 31 | Cody Beverly | 20 | Son | — | Minnesota |
| 32 | James J Breen | 51 | Head | Janitor | Irish Free State |
| 33 | Alice M Breen | 49 | Wife | — | California |
| 34 | Joseph J Breen | 12 | Son | — | California |
| 35 | Charles P Breen | 11 | Son | — | California |
| 36 | Emily D Gardner | 46 | Sister-in-law | Bookkeeper | California |
| 37 | Emma M Hurst | 58 | Head | — | Utah |
| 38 | Lee S Hurst | 34 | Son | Pharmacist | Idaho |
| 39 | Wilfred H Thomas | 40 | Head | Steward | Washington |
| 40 | Blanche Thomas | 38 | Wife | — | Massachusetts |
| 41 | Philip A Wood | 45 | Head | Salesman | New York |
| 42 | Edna A Wood | 43 | Wife | — | Illinois |
| 43 | Leonard A Hobbs | 42 | Friend | Salesman | California |
| 44 | M. May | 35 | Friend | — | Ireland |
| 45 | Leonard S May | 4 | Friend | — | California |
| 46 | Bernar H Esten | 49 | Head | Bookkeeper | Norway |
| 47 | Annie G Esten | 48 | Wife | — | California |
| 48 | Bernar Jr Esten | 23 | Son | Mate | California |
| 49 | James H Esten | 20 | Son | — | California |
| 50 | Norman E Esten | 16 | Son | — | California |
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)