AL
Arthur Lewis — 1940 US Census Record
Model Tree available1940 United States Federal Census · San-Francisco-County, California
Our Model Tree links this Arthur Lewis across the 1920, 1930 and 1940 US Censuses in San-Francisco-County, California (XGBoost, ~Confirmed), with identified parents Arthur & Theresa — first a head (b.~1903), then head of a 4-person household.
Age 37
b. ~1903
Male
Head
Born: California
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | San-Francisco-County, California |
| Surname | Lewis |
| Given Name | Arthur F. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | California |
| 1935 Residence (City) | San Francisco |
| 1935 Residence (County) | San Francisco |
| Additional Details | |
| Occupation | Pharmacist |
| Industry | Retail Drug |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 30 |
| Highest Grade | C 3 |
| 1935 Residence | Same place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Occupation | Pharmacist |
| Township / Ward | San Francisco |
| Est. Birth Year | ~1903 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Arthur | Age | Birth yr |
|---|---|---|---|---|
| Marjorie Lewis | Daughter | — | 10 | ~1930 |
| Arthur Lewis | Head | — | 37 | ~1903 |
| Margaret Anderson | Other | — | 63 | ~1877 |
| Margaret Lewis | Spouse | — | 34 | ~1906 |
Census Appearances
1920
San Francisco, …
Son, age 17
San Francisco, California · implied b. ~1903 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lewis |
| Given Name | Arthur E Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1930
San Francisco, …
Head, age 27
San Francisco, California · implied b. ~1903 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lewis |
| Given Name | Arthur P. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | California |
| Age at First Marriage | 25 |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Occupation | Druggist |
| Industry | Drugs |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 37 |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
San-Francisco-County, California
Head, age 37
San-Francisco-County, California · implied b. ~1903 — 4 household members
| Surname | Lewis |
| Given Name | Arthur F. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | California |
| 1935 Residence (City) | San Francisco |
| 1935 Residence (County) | San Francisco |
| Occupation | Pharmacist |
| Industry | Retail Drug |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 30 |
| Highest Grade | C 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 Arthur Lewis across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Arthur Lewis (~0.92 confidence) and mother Theresa Lewis (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Arthur Lewis
b. ~1881
Source father
● Household
· direct · ~0.92
Mother
Theresa Lewis
b. ~1889
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Arthur Lewis
Head · 1940 · age 37 · b. ~1903 · California
★ You are viewing this record
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
38 people indexed on this census page (nara:1940:m-t0627-00314-00187)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Jack K. Parle | 35 | Head | Artist | California |
| 42 | Edith Parle | 29 | Wife | — | California |
| 43 | Robert J. Parle | 5 | Son | — | California |
| 44 | David A. Parle | 2 | Son | — | California |
| 45 | J. A. Cronin | 30 | Head | Die Maker | California |
| 46 | Paul B. Farnham | 44 | Head | Salesman | Minnesota |
| 47 | Loretta A. Farnham | 39 | Wife | Office Clerk | Washington |
| 48 | Elizabeth L. Palmer | 64 | Mother-in-law | Seamstress | Illinois |
| 50 | Clarence J. Shepaugh | 48 | Head | Linotype Operator | Missouri |
| 51 | Emma A. Shepaugh | 44 | Wife | Teacher | California |
| 52 | Viola K. Mcevoy | 44 | Head | — | California |
| 53 | Mary R. Ross | 51 | Sister | — | California |
| 54 | Viola A. Williams | 24 | Niece | General Office | California |
| 55 | Frank J. Williams | 55 | Brother | Supervising Engineer | California |
| 56 | George D. Bundy | 40 | Head | Salesman | Illinois |
| 57 | Elsie Bundy | 30 | Wife | Telephone Operator | California |
| 58 | Alis Mitchum | 49 | Head | Banker | California |
| 59 | Eleanor A. Mitchum | 48 | Wife | — | California |
| 60 | Allan Mitchum | 16 | Son | — | California |
| 61 | Edna M. Mcgovern | 54 | Head | Deputy Sheriff | California |
| 62 | Marian R. Mcgovern | 24 | Daughter | Stenographer | California |
| 63 | Mary A. Clark | 63 | Head | Seamstress | Canada-English |
| 64 | Katherine J. Clark | 8 | Daughter | — | Massachusetts |
| 65 | Mercedes Jurgens | 40 | Sister | Saleslady | Massachusetts |
| 66 | Arthur F. Lewis THIS PERSON | 37 | Head | Pharmacist | California |
| 67 | Margaret O. Lewis | 34 | Wife | Beauty Operator | California |
| 68 | Marjorie J. Lewis | 10 | Daughter | — | California |
| 69 | Margaret Anderson | 63 | Mother-in-law | — | Scotland |
| 70 | Raymond G. Williamson | 40 | Head | Attorney | California |
| 71 | Pauline Williamson | 35 | Wife | — | California |
| 72 | Raymond G. Williamson | 1 | Son | — | California |
| 73 | John J. Regan | 57 | Head | Secretary | California |
| 74 | Agnes L. Regan | 58 | Wife | — | California |
| 75 | Harold J. Regan | 38 | Son | Assistant Secretary | California |
| 76 | Robert E. Regan | 16 | Son | — | California |
| 77 | Daniel J. O'Brien | 37 | Head | Attorney | California |
| 78 | Madge O'Brien | 37 | Wife | — | Oklahoma |
| 79 | Daniel J. O'Brien | 15 | Son | — | California |
Pedigree Summary
Arthur
Gen 1 · 2 parents
~0.92
Max depth 4 (1900–1950 window)
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)