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Louis Young — 1940 US Census Record
Linked across censuses1940 United States Federal Census · San-Francisco-County, California
Our Model Tree links this Louis Young across the 1920, 1930 and 1940 US Censuses in San-Francisco-County, California (XGBoost, ~Confirmed) — first a head (b.~1876), then head of a 3-person household.
Age 64
b. ~1876
Male
Head
Born: Germany
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | San-Francisco-County, California |
| Surname | Young |
| Given Name | Louis |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 64 |
| Marital Status | Married |
| Birthplace | Germany |
| 1935 Residence (City) | San Francisco |
| 1935 Residence (County) | San Francisco |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Floor Man |
| Industry | Retail Dept. Store |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 2000 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | Germany |
| Birthplace (normalized) | germany |
| Occupation | Floor Man |
| Township / Ward | San Francisco |
| Est. Birth Year | ~1876 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Louis | Age | Birth yr |
|---|---|---|---|---|
| Louis Young | Son | — | 27 | ~1913 |
| Minnie Young | Spouse | — | 55 | ~1885 |
| Louis Young | Head | — | 64 | ~1876 |
Census Appearances
1920
San Francisco, …
Head, age 43
San Francisco, California · implied b. ~1877 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Young |
| Given Name | Louis |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Germany |
| Year of Immigration | 1880 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Germany |
| Mother's Birthplace | Idaho |
| Occupation | Proprietor |
| Industry | Dry Goods |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | German |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth Country | Germany |
| Year of Naturalization | 1887 |
| Birthplace (normalized) | germany |
1930
San Francisco, …
Head, age 54
San Francisco, California · implied b. ~1876 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Young |
| Given Name | Louis |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Germany |
| Naturalization Status | Naturalized |
| Year of Immigration | 1873 |
| Age at First Marriage | 33 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Illinois |
| Occupation | Clerk |
| Industry | Clothing |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | German |
| Home Owned/Rented | O |
| Home Value / Rent | 8500 |
| Radio Set | R |
| Birth Country | Germany |
| Birthplace (normalized) | germany |
1940
San-Francisco-County, California
Head, age 64
San-Francisco-County, California · implied b. ~1876 — 3 household members
| Surname | Young |
| Given Name | Louis |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 64 |
| Marital Status | Married |
| Birthplace | Germany |
| 1935 Residence (City) | San Francisco |
| 1935 Residence (County) | San Francisco |
| Naturalization Status | Naturalized |
| Occupation | Floor Man |
| Industry | Retail Dept. Store |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 2000 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | Germany |
| Birthplace (normalized) | germany |
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 Louis Young across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Louis Young
Head · 1940 · age 64 · b. ~1876 · California
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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-t0627-00320-00393)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Lawrence Ruegg | 28 | Son | Salesman | California |
| 2 | Robert Ruegg | 26 | Son | Secretary | California |
| 3 | William Ruegg | 25 | Son | — | California |
| 4 | Eugene Ruegg | 19 | Son | Delivery | California |
| 5 | Rosemarie Ruegg | 17 | Daughter | — | California |
| 6 | Raymond Ruegg | 15 | Son | — | California |
| 7 | Mrs H. B. Kessel | 74 | Head | — | Germany |
| 8 | Roy Pettner | 42 | Roomer | Dish Washer | Indiana |
| 9 | Louis Young THIS PERSON | 64 | Head | Floor Man | Germany |
| 10 | Minnie Young | 55 | Wife | — | California |
| 11 | Louis Jr. Young | 27 | Son | Stock Clerk | California |
| 12 | Michael Mchale | 62 | Head | Restaurant | Irish Free State |
| 13 | Vincent Mchale | 24 | Son | Machine Op | California |
| 14 | Kenneth Mchale | 22 | Son | Salesman | California |
| 15 | Alta Mchale | 21 | Daughter | Waitress | California |
| 16 | Mary Mchale | 19 | Daughter | — | California |
| 17 | Emma Fried | 51 | Head | — | England |
| 18 | Kit Fried | 23 | Son | — | Philli |
| 19 | George E. Chapman | 44 | Head | Meat Market | Kansas |
| 20 | Ethel L. Chapman | 44 | Wife | — | Kansas |
| 21 | Emmett Legglett | 40 | Head | Steel Worker | New York |
| 22 | Lillian Legglett | 37 | Wife | Operator | California |
| 23 | William Hurley | 23 | Head | Ship Rigger | California |
| 24 | Wanda Hurley | 20 | Wife | — | Oregon |
| 25 | Daniel Kushnig | 57 | Head | Fireman | Irish Free State |
| 26 | Easter Florence Kushnig | 27 | Niece | Teletype Op. | Irish Free State |
| 27 | H. M. Christoffersen | 56 | Head | Auto Mechanic | Iowa |
| 28 | Thomas J. Larkin | 62 | Head | Policeman | California |
| 29 | Lillian Larkin | 60 | Wife | — | California |
| 30 | Patrick J. Gillespie | 41 | Head | Conductor | Scotland |
| 31 | Mary P. Gillespie | 37 | Wife | — | Irish Free State |
| 32 | Andrew Gillespie | 6 | Son | — | California |
| 33 | Albert H. Smetzer | 73 | Head | — | Pennsylvania |
| 34 | Isabelle Smetzer | 66 | Wife | — | California |
| 35 | Mr. M. C. Cotton | 37 | Head | Controller | Texas |
| 36 | Frances B. Cotton | 37 | Wife | — | California |
| 37 | Sally N. Cotton | 2 | Daughter | — | California |
| 38 | Jeremiah Looney | 71 | Head | Plumbing Contr. | California |
| 39 | Catherine Looney | 67 | Wife | — | California |
| 40 | Joseph John Looney | 38 | Son | Truck Driver | 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)