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Charles Shaffer — 1940 US Census Record
Linked across censuses1940 United States Federal Census · San-Joaquin-County, California
Our Model Tree links this Charles Shaffer across the 1930 and 1940 US Censuses in San-Joaquin-County, California (XGBoost, ~Confirmed) — first a son (b.~1928), then head of a 9-person household.
Age 12
b. ~1928
Male
Son
Born: Oregon
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | San-Joaquin-County, California |
| Surname | Shaffer |
| Given Name | Charles N. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Oregon |
| 1935 Residence (City) | Stockton |
| 1935 Residence (County) | San Joaquin |
| Additional Details | |
| Highest Grade | 4 |
| 1935 Residence | Same place |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
| Township / Ward | Stockton |
| Est. Birth Year | ~1928 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Charles | Age | Birth yr |
|---|---|---|---|---|
| Robert Shaffer | Son | — | 18 | ~1922 |
| Charles Shaffer | Son | — | 12 | ~1928 |
| Lawrence Shaffer | Son | — | 15 | ~1925 |
| Fern Shaffer | Spouse | — | 41 | ~1899 |
| Ray Shaffer | Son | — | 5 | ~1935 |
| Carlos Shaffer | Head | — | 48 | ~1892 |
| Virginia Shaffer | Daughter | — | 10 | ~1930 |
| George Shaffer | Son | — | 21 | ~1919 |
| Owen Shaffer | Son | — | 20 | ~1920 |
Census Appearances
1930
San Joaquin, …
Son, age 3
San Joaquin, California · implied b. ~1927 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Schafer |
| Given Name | Charles |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Oregon |
| Father's Birthplace | Oregon |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
1940
San-Joaquin-County, California
Son, age 12
San-Joaquin-County, California · implied b. ~1928 — 9 household members
| Surname | Shaffer |
| Given Name | Charles N. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Oregon |
| 1935 Residence (City) | Stockton |
| 1935 Residence (County) | San Joaquin |
| Highest Grade | 4 |
| 1935 Residence | Same place |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
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 Charles Shaffer across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Charles Shaffer
Son · 1940 · age 12 · b. ~1928 · California
★ You are viewing this record
Sibling
Robert Shaffer
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Shaffer
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Owen Shaffer
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ray Shaffer
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Virginia Shaffer
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lawrence Shaffer
Sibling · 1940 · age 15
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-Joaquin-County, California
Open full size
1940 US Federal Census — San-Joaquin-County, California
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00326-00434)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Jean Chester | 14 | daughter | — | Missouri |
| 2 | Raymond Chester | 12 | son | — | Missouri |
| 3 | Marjorie Chester | 11 | daughter | — | Missouri |
| 4 | Nina Lee Chester | 9 | daughter | — | Missouri |
| 5 | Helen Chester | 6 | daughter | — | Missouri |
| 6 | Carlos G. Shaffer | 48 | head | Bridge Carpenter | Oregon |
| 7 | Fern D. Shaffer | 41 | wife | — | Illinois |
| 8 | George Shaffer | 21 | son | Truck Driver | Illinois |
| 9 | Owen R. Shaffer | 20 | son | Truck Driver | Colorado |
| 10 | Robert C. Shaffer | 18 | son | Pipe Layer | Colorado |
| 11 | Lawrence M. Shaffer | 15 | son | — | Oregon |
| 12 | Charles N. Shaffer THIS PERSON | 12 | son | — | Oregon |
| 13 | Virginia L. Shaffer | 10 | daughter | — | California |
| 14 | Ray Leland Shaffer | 5 | son | — | California |
| 15 | Fred M. Brown | 47 | head | Carpenter | California |
| 16 | Clara M. Brown | 44 | wife | — | Arkansas |
| 17 | Daisuke Okuyama | 61 | head | Tomato Picker | Japan |
| 18 | Sada Okuyama | 62 | wife | Tomato Picker | Japan |
| 19 | John B. Miller | 57 | head | Laborer | Pennsylvania |
| 20 | Andrew Garibaldi | 34 | head | Farmer | California |
| 21 | Rose Garibaldi | 21 | wife | — | California |
| 22 | Salvador Garibaldi | 26 | head | Farmer | California |
| 23 | Ray E. Stephens | 33 | head | Attendant | California |
| 24 | Dorothy J. Stephens | 31 | wife | — | California |
| 25 | Raydon Stephens | 11 | son | — | California |
| 26 | Noel Stephens | 10 | son | — | California |
| 27 | Elaine Stephens | 9 | daughter | — | California |
| 28 | Burt Gibson | 33 | lodger | Carpenter Helper | California |
| 29 | Kemmer J. Stephens | 34 | head | Carpenter | Canada-English |
| 30 | Mae Stephens | 34 | wife | — | Utah |
| 31 | Betty Jean Stephens | 13 | daughter | — | California |
| 32 | Jack D. Stephens | 10 | son | — | Idaho |
| 33 | Ruth Lorraine Stephens | 5 | daughter | — | California |
| 34 | Henry Warman | 42 | head | Pullman | Missouri |
| 35 | Sophia Warman | 72 | mother | — | Germany |
| 36 | John Warman | 49 | brother | Electrician | Missouri |
| 37 | Cyril Ribisi | 33 | head | Superintendent | California |
| 38 | Frances Ribisi | 33 | wife | — | California |
| 39 | Diane Ribisi | 2 | daughter | — | California |
| 40 | Newt Stewart | 35 | head | Attendant | Illinois |
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)