RR
Robert Richards — 1940 US Census Record
Model Tree available1940 United States Federal Census · Sacramento-County, California
Our Model Tree links this Robert Richards across the 1920, 1930 and 1940 US Censuses in Sacramento-County, California (XGBoost, ~Confirmed), with identified parents Mayme & Minnie — first a son (b.~1915), then head of a 6-person household.
Age 25
b. ~1915
Male
Son
Born: California
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Sacramento-County, California |
| Surname | Richards |
| Given Name | Robert K. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Sacramento City |
| 1935 Residence (County) | Sacramento |
| Additional Details | |
| Occupation | Clerical Work |
| Industry | Brokers Office |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 900 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Occupation | Clerical Work |
| Township / Ward | Sacramento City |
| Est. Birth Year | ~1915 |
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 Robert | Age | Birth yr |
|---|---|---|---|---|
| Richard Riggs | Other | — | 4 | ~1936 |
| Mayme Richards | Head | — | 57 | ~1883 |
| Robert Richards | Son | — | 25 | ~1915 |
| Marilyn Riggs | Other | — | 2 | ~1938 |
| Elton Riggs | Other | — | 40 | ~1900 |
| Edith Riggs | Daughter | — | 31 | ~1909 |
Census Appearances
1920
Sacramento, California
Son, age 5
Sacramento, California · implied b. ~1915 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Richards |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Michigan |
| Mother's Birthplace | California |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1930
Sacramento, California
Son, age 15
Sacramento, California · implied b. ~1915 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Richards |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Michigan |
| Mother's Birthplace | California |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
Sacramento-County, California
Son, age 25
Sacramento-County, California · implied b. ~1915 — 6 household members
| Surname | Richards |
| Given Name | Robert K. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Sacramento City |
| 1935 Residence (County) | Sacramento |
| Occupation | Clerical Work |
| Industry | Brokers Office |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 900 |
| Highest Grade | H-4 |
| 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 Robert Richards across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Mayme Richards (~0.92 confidence) and mother Minnie Richards (~0.92 confidence) and father William Richards (~0.92 confidence) and father Wm Richards (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Mayme Richards
b. ~1883
Source mother
● Household
· direct · ~0.92
Mother
Minnie Richards
b. ~1883
Source mother
● Household
· direct · ~0.92
Father
William Richards
b. ~1883
Source father
● Household
· direct · ~0.92
Father
Wm Richards
b. ~1883
Source father
● Household
· direct · ~0.92
This person
Anchor record
Robert Richards
Son · 1940 · age 25 · b. ~1915 · California
★ You are viewing this record
Sibling
Edith Riggs
Sibling · 1940 · age 31
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 — Sacramento-County, California
Open full size
1940 US Federal Census — Sacramento-County, California
Page Contents
36 people indexed on this census page (nara:1940:m-t0627-00283-00486)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mayme Richards | 57 | Head | — | California |
| 2 | Robert K. Richards THIS PERSON | 25 | Son | Clerical Work | California |
| 3 | Elton Riggs | 40 | Son-in-law | Mail Carrier | California |
| 4 | Edith C. Riggs | 31 | Daughter | — | California |
| 5 | Richard E. Riggs | 4 | Grandson | — | California |
| 6 | Marilyn E. Riggs | 2 | Granddaughter | — | California |
| 8 | Mary A. Bruno | 57 | Head | — | California |
| 9 | Anis G. Bruno | 30 | Daughter | File Clerk | California |
| 10 | Thomas H. Betz | 78 | Head | — | California |
| 11 | Emma A. Betz | 74 | Wife | — | California |
| 12 | Margaret M. Lumpkins | 74 | Sister | — | California |
| 14 | Timothy B. Hagerty | 71 | Head | Constable | New Jersey |
| 15 | Mary A. Hagerty | 76 | Wife | — | California |
| 16 | Ralph E. Kennedy | 28 | Head | Finger Print Technician | California |
| 17 | Hilda G. Kennedy | 21 | Wife | — | California |
| 18 | Kent R. Kennedy | 1 | Son | — | California |
| 19 | Lillie M. Carboni | 64 | Head | — | California |
| 20 | Ray M. Cardinal | 35 | Son-in-law | Truck Driver | Nevada |
| 21 | Julia J. Cardinal | 36 | Daughter | Housework | California |
| 22 | Caroline Hultquist | 74 | Head | — | Sweden |
| 24 | David L. Moberg | 39 | Son-in-law | Carpenter Cab. Builder | Wisconsin |
| 25 | Clara E. Moberg | 38 | Daughter | — | California |
| 26 | Amos L. Thwing | 27 | Head | Taxi Driver | Nebraska |
| 27 | Katie L. Thwing | 27 | Wife | — | Missouri |
| 28 | Marjorie E. Thwing | 1 | Daughter | — | California |
| 29 | Gino E. Paolinelli | 32 | Head | Grocer | California |
| 30 | Evelyn B. Paolinelli | 29 | Wife | — | California |
| 31 | Gary E. Paolinelli | 5 | Son | — | California |
| 32 | Gail M. Paolinelli | 1 | Daughter | — | California |
| 33 | Conrad Lee | 42 | Head | Manager | California |
| 34 | Helmie G. Lee | 41 | Wife | — | Finland |
| 35 | Judith Lee | 20 | Daughter | — | California |
| 36 | Conrad A. Lee | 9 | Son | — | California |
| 37 | Charlotte A. Lee | 9 | Daughter | — | California |
| 38 | Donald E. Lee | 7 | Son | — | California |
| 39 | Henry Phelps | 74 | Head | — | England |
Pedigree Summary
Robert + 1 sibling
Gen 1 · 4 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)