JL
Joseph Lawrence — 1940 US Census Record
Linked across censuses1940 United States Federal Census · San-Francisco-County, California
Our Model Tree links this Joseph Lawrence across the 1930 and 1940 US Censuses in San-Francisco-County, California (XGBoost, ~Confirmed) — first a son (b.~1922), then head of a 6-person household.
Age 18
b. ~1922
Male
Son
Born: California
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | San-Francisco-County, California |
| Surname | Lawrence |
| Given Name | Joseph L |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | San Francisco |
| 1935 Residence (County) | San Francisco |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | Hs 3 |
| 1935 Residence | Same place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Township / Ward | San Francisco |
| Est. Birth Year | ~1922 |
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 1940 census.
| Name | Relation to head | Relative to Joseph | Age | Birth yr |
|---|---|---|---|---|
| Ramona Lawrence | Daughter | — | 9 | ~1931 |
| Joseph Lawrence | Head | — | 50 | ~1890 |
| Joseph Lawrence | Son | — | 18 | ~1922 |
| Jeanette Lawrence | Daughter | — | 12 | ~1928 |
| Rose Lawrence | Spouse | — | 30 | ~1910 |
| Laurette Lawrence | Daughter | — | 12 | ~1928 |
Census Appearances
1930
County Of …
Son, age 8
County Of San Francisco, California · implied b. ~1922 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lawrence |
| Given Name | Joseph Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | San Miguel |
| Mother's Birthplace | San Miguel |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
San-Francisco-County, California
Son, age 18
San-Francisco-County, California · implied b. ~1922 — 6 household members
| Surname | Lawrence |
| Given Name | Joseph L |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | San Francisco |
| 1935 Residence (County) | San Francisco |
| Income (1939) | 0 |
| Highest Grade | Hs 3 |
| 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 Joseph Lawrence across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Joseph Lawrence
Son · 1940 · age 18 · b. ~1922 · California
★ You are viewing this record
Sibling
Laurette Lawrence
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jeanette Lawrence
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ramona Lawrence
Sibling · 1940 · age 9
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-t0627-00310-00656)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Lucile M Gaffert | 43 | Wife | — | Kentucky |
| 42 | Ernest B Bridgett | 43 | Head | Proprietor | California |
| 43 | Catherine M Bridgett | 42 | Wife | — | California |
| 44 | Charles E Bridgett | 19 | Son | — | California |
| 45 | George B Bridgett | 10 | Son | — | California |
| 46 | Mabel Poole | 56 | Head | — | Tennessee |
| 47 | Abbie E Mervin | 60 | Mother | — | Illinois |
| 48 | Edward H Mervin | 40 | Son | Proprietor | Utah |
| 49 | Henry B Welch | 52 | Head | Accountant | Kansas |
| 50 | Blanche M Welch | 48 | Wife | — | California |
| 51 | Heloise O Welch | 16 | Daughter | — | California |
| 52 | John B Welch | 15 | Son | — | California |
| 53 | Joseph L Lawrence | 50 | Head | Machinist | California |
| 54 | Rose A Lawrence | 30 | Wife | Proprietor | California |
| 55 | Joseph L Lawrence THIS PERSON | 18 | Son | — | California |
| 56 | Jeanette M Lawrence | 12 | Daughter | — | California |
| 57 | Laurette M Lawrence | 12 | Daughter | — | California |
| 58 | Ramona A Lawrence | 9 | Daughter | — | California |
| 59 | Benj. F Enames|Eames | 52 | Head | Engineer | Kansas |
| 60 | H. Evelyn Enames|Eames | 51 | Wife | — | Utah |
| 61 | Martin Thelma D Enames|Eames | 33 | Daughter-in-law | — | California |
| 62 | Jay Marion Enames|Eames | 8 | Grandson | — | California |
| 63 | Annie M Schraeder | 75 | Head | — | Pennsylvania |
| 64 | Pauline Schraeder | 48 | Daughter | Vice President | California |
| 65 | Edna Schraeder | 41 | Daughter | Sales-Clerk | California |
| 66 | Amy D Satterlee | 42 | Head | Department Head | England |
| 67 | George E Satterlee | 20 | Son | Attendant | California |
| 68 | Russell C Satterlee | 17 | Son | — | California |
| 69 | Karl Freitag | 44 | Head | Estimating Engineer | Denmark |
| 70 | Emily G Freitag | 39 | Wife | — | Virginia |
| 71 | Edward S Freitag | 11 | Son | — | California |
| 72 | Paula M Freitag | 7 | Daughter | — | California |
| 73 | Sidney S Gorman | 41 | Head | Civil Engineer | California |
| 74 | Emma W Gorman | 39 | Wife | — | California |
| 75 | Donald H Gorman | 13 | Son | — | California |
| 76 | Charles R Vickery | 45 | Head | Foreman | Indiana |
| 77 | Mary E Vickery | 52 | Wife | — | Mississippi |
| 78 | Charles R Jr Vickery | 19 | Son | Mechanic | California |
| 79 | James Mastech | 22 | Boarder | Mechanic | California |
| 80 | Laura Davis | 18 | Boarder | Sorter | 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)