KS
Kathryn Smith — 1930 US Census Record
Linked across censuses1930 United States Federal Census · San Francisco, California
Our Model Tree links this Kathryn Smith across the 1930 and 1940 US Censuses in San Francisco, California (XGBoost, ~Confirmed) — first a daughter (b.~1919), then head of a 6-person household.
Age 11
b. ~1919
Female
Daughter
Born: California
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | San Francisco, California |
| Surname | Smith |
| Given Name | Kathryn |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Township / Ward | San Francisco |
| Est. Birth Year | ~1919 |
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 1930 census.
| Name | Relation to head | Relative to Kathryn | Age | Birth yr |
|---|---|---|---|---|
| Kathryn Smith | Daughter | — | 11 | ~1919 |
| John Smith | Son | — | 22 | ~1908 |
| Dorothy Smith | Daughter | — | 20 | ~1910 |
| John Smith | Head | — | 50 | ~1880 |
| Mary Smith | Daughter | — | 12 | ~1918 |
| Edith Smith | Spouse | — | 49 | ~1881 |
Census Appearances
1930
San Francisco, …
Daughter, age 11
San Francisco, California · implied b. ~1919 — 6 household members
| Surname | Smith |
| Given Name | Kathryn |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
San-Francisco-County, California
Other, age 21
San-Francisco-County, California · implied b. ~1919 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Kay H. |
| Relationship to Head | Sister |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | San Francisco |
| 1935 Residence (County) | San Francisco |
| Naturalization Status | Alien |
| Occupation | Stenographer |
| Industry | Public Schools |
| Class of Worker | GW |
| Hours Worked | 31 |
| Highest Grade | No 8 |
| 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 Kathryn Smith across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Kathryn Smith
Daughter · 1930 · age 11 · b. ~1919 · California
★ You are viewing this record
Sibling
John Smith
Sibling · 1930 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Smith
Sibling · 1930 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Smith
Sibling · 1930 · age 12
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:californiacensus00reel196:0300)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Mary Birkeland | 24 | Daughter-in-law | — | California |
| 52 | George Birkeland | 1 | Grandson | — | California |
| 53 | Thelma Birkeland | 0 | Granddaughter | — | California |
| 54 | George J. Batz | 41 | Head | Clerk | Indiana |
| 55 | Lillian Batz | 42 | Wife | Saleslady | Australia |
| 56 | Ray E. Batz | 21 | Son | Musician | California |
| 57 | William J. Batz | 18 | Son | — | California |
| 58 | Frank Feitig | 26 | Head | Grocer | California |
| 59 | Eleanor Feitig | 30 | Wife | — | California |
| 60 | Katherine Hemmeter | 66 | Head | — | Bavaria |
| 61 | Carl A. Hemmeter | 25 | Son | Machinist | California |
| 62 | James M. Rossi | 46 | Head | Proprietor | Italy |
| 63 | Mary Rossi | 44 | Wife | — | Italy |
| 64 | Margaret L. Rossi | 12 | Daughter | — | California |
| 65 | James W. Rossi | 11 | Son | — | California |
| 66 | John A. Rossi | 10 | Son | — | California |
| 67 | Robert J. Rossi | 4 | Son | — | California |
| 68 | John J. Smith | 50 | Head | Clerk | California |
| 69 | Edith Smith | 49 | Wife | — | California |
| 70 | John H. Smith | 22 | Son | Druggist | California |
| 71 | Dorothy Smith | 20 | Daughter | — | California |
| 72 | Mary F. Smith | 12 | Daughter | — | California |
| 73 | Kathryn Smith THIS PERSON | 11 | Daughter | — | California |
| 74 | George J. Roudas | 37 | Head | Proprietor | California |
| 75 | Edith Roudas | 34 | Wife | — | California |
| 76 | Georgette Roudas | 7 | Daughter | — | California |
| 77 | Peter Roudas | 5 | Daughter | — | California |
| 78 | Fred Dahlman | 54 | Head | Storeman | Montana |
| 79 | Ester Dahlman | 55 | Wife | — | Kansas |
| 80 | Howard Bumbar | 25 | Head | Conductor | California |
| 81 | Ruth Bumbar | 53 | Mother | — | Massachusetts |
| 82 | Katherine Miller | 20 | Sister | Assembler | California |
| 83 | Charles Miller | 26 | Brother-in-law | — | California |
| 84 | Fred Lindeman | 62 | Head | Proprietor | Indiana |
| 85 | Emma Lindeman | 67 | Wife | — | Germany |
| 86 | Lloyd Lindeman | 43 | Head | Machinist | Indiana |
| 87 | Alice Lindeman | 45 | Wife | — | New York |
| 88 | Lloyd Jr. Lindeman | 20 | Son | Apprentice | California |
| 89 | John H. Anderson | 32 | Head | Tracer | Utah |
| 90 | Vivian Anderson | 30 | Wife | Operator | Utah |
| 91 | Clifford Anderson | 7 | Step-son | — | Utah |
| 92 | June Anderson | 5 | Step-daughter | — | Utah |
| 93 | Matthew Bryson | 48 | Brother-in-law | — | England |
| 94 | H. J. Hinds | 54 | Head | Special Police | Montana |
| 95 | Mary Hinds | 54 | Wife | — | Ireland |
| 96 | Lee Davenport | 33 | Head | Laborer | Idaho |
| 97 | Olive Davenport | 33 | Wife | — | Michigan |
| 98 | Mary Appleby | 62 | Mother-in-law | — | England |
| 99 | Jay W. Taylor | 32 | Head | Electric Welder | Ohio |
| 100 | Katherine Taylor | 32 | Wife | — | Missouri |
Related Census Records
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)