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David Lee — 1940 US Census Record
Linked across censuses1940 United States Federal Census · San-Francisco-County, California
Our Model Tree links this David Lee across the 1930 and 1940 US Censuses in San-Francisco-County, California (XGBoost, ~Confirmed) — first a son (b.~1926), then head of a 13-person household.
Age 14
b. ~1926
Male
Son
Born: California
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | San-Francisco-County, California |
| Surname | Lee |
| Given Name | David |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Chinese |
| Age | 14 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | San Francisco |
| 1935 Residence (County) | SAN FRANCISCO |
| Additional Details | |
| Highest Grade | S 7 |
| 1935 Residence | Same place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Township / Ward | San Francisco |
| Est. Birth Year | ~1926 |
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.
13 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to David | Age | Birth yr |
|---|---|---|---|---|
| Stanley Lee | Son | — | 12 | ~1928 |
| Bow Lee | Daughter | — | 4 | ~1936 |
| Dong Lee | Son | — | 20 | ~1920 |
| Yau Lee | Daughter | — | 21 | ~1919 |
| Ursula Lee | Daughter | — | 24 | ~1916 |
| Gin Lee | Son | — | 19 | ~1921 |
| Howard Lee | Son | — | 13 | ~1927 |
| Doris Lee | Daughter | — | 18 | ~1922 |
| David Lee | Son | — | 14 | ~1926 |
| Anna Lee | Daughter | — | 10 | ~1930 |
| Louie Lee | Spouse | — | 49 | ~1891 |
| Hop Lee | Head | — | 51 | ~1889 |
| Helen Lee | Daughter | — | 17 | ~1923 |
Census Appearances
1930
San Francisco, …
Son, age 3
San Francisco, California · implied b. ~1927 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lee |
| Given Name | David |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | Russia |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
San-Francisco-County, California
Son, age 14
San-Francisco-County, California · implied b. ~1926 — 13 household members
| Surname | Lee |
| Given Name | David |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Chinese |
| Age | 14 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | San Francisco |
| 1935 Residence (County) | SAN FRANCISCO |
| Highest Grade | S 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 David Lee across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
David Lee
Son · 1940 · age 14 · b. ~1926 · California
★ You are viewing this record
Sibling
Helen Lee
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ursula Lee
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bow Lee
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Howard Lee
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Stanley Lee
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anna Lee
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gin Lee
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dong Lee
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Doris Lee
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Yau Lee
Sibling · 1940 · age 21
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
1940 US Federal Census — San-Francisco-County, California
Open full size
1940 US Federal Census — San-Francisco-County, California
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00299-00492)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Wing Sing Wong | 40 | Head | Driver | California |
| 2 | Rose Wong | 35 | Wife | Seamstress | California |
| 3 | Eileen Wong | 17 | Daughter | — | California |
| 4 | Shirley Wong | 15 | Daughter | — | California |
| 5 | William Wong | 13 | Son | — | California |
| 6 | Genevieve Wong | 11 | Daughter | — | California |
| 7 | Florence Wong | 9 | Daughter | — | California |
| 8 | Wood Tom | 60 | Head | Jeweler | China |
| 9 | Woo Shee Tom | 37 | Wife | Seamstress | China |
| 10 | Kum Hook Fong | 42 | Head | House Boy | Hawaii |
| 11 | Jill Tong Fong | 21 | Son | — | China |
| 12 | Lum Ming Fong | 51 | Partner | Laborer | China |
| 13 | Sam Hai Siu | 33 | Head | Laundryman | China |
| 14 | Mon Yin | 50 | Head | Helper | California |
| 15 | Yun Chong Won | 31 | Lodger | Salesclerk | China |
| 16 | Hong See Hom | 19 | Lodger | — | China |
| 17 | Chun Tair | 47 | Head | Bartender | China |
| 18 | Sui George Tair | 26 | Partner | — | China |
| 19 | On Gar Lim | 39 | Head | Proprietor | California |
| 20 | Too Chong Lim | 48 | Lodger | — | China |
| 21 | Samuel Lim | 69 | Lodger | — | China |
| 22 | Tong Tom | 64 | Head | Translator | California |
| 23 | Jing Wong | 42 | Partner | Cook | California |
| 24 | Choy Lee | 36 | Head | Cook | California |
| 25 | Sum Lee | 32 | Cousin | Bookkeeper | China |
| 26 | Dan Lee | 16 | Cousin | — | China |
| 27 | Hop Lee | 51 | Head | Proprietor | China |
| 28 | Louie Shee Lee | 49 | Wife | — | China |
| 29 | Ursula Lee | 24 | Daughter | — | China |
| 30 | Yau Lee | 21 | Daughter | — | California |
| 31 | Dong Lee | 20 | Son | — | California |
| 32 | Gin Lee | 19 | Son | — | California |
| 33 | Doris Lee | 18 | Daughter | — | California |
| 34 | Helen Lee | 17 | Daughter | — | California |
| 35 | David Lee THIS PERSON | 14 | Son | — | California |
| 36 | Howard Lee | 13 | Son | — | California |
| 37 | Stanley Lee | 12 | Son | — | California |
| 38 | Anna Lee | 10 | Daughter | — | California |
| 39 | Bow Lee | 4 | Daughter | — | California |
| 40 | You Chang | 43 | Head | Farm Hand | California |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 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)