MR
Martha Robinson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Sacramento-County, California
Our Model Tree links this Martha Robinson across the 1930 and 1940 US Censuses in Sacramento-County, California (XGBoost, ~Confirmed) — first a daughter (b.~1922), then head of a 5-person household.
Age 18
b. ~1922
Female
Daughter
Born: California
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Sacramento-County, California |
| Surname | Robinson |
| Given Name | Martha |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Butte |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | H-4 |
| 1935 Residence | California |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Township / Ward | Sacramento City |
| 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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Martha | Age | Birth yr |
|---|---|---|---|---|
| Joseph Robinson | Son | — | 19 | ~1921 |
| Margaret Robinson | Daughter | — | 14 | ~1926 |
| Ruth Robinson | Spouse | — | 46 | ~1894 |
| Martha Robinson | Daughter | — | 18 | ~1922 |
| Joseph Robinson | Head | — | 48 | ~1892 |
Census Appearances
1930
Sacramento, California
Daughter, age 7
Sacramento, California · implied b. ~1923 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Robinson |
| Given Name | Mary S |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
Sacramento-County, California
Daughter, age 18
Sacramento-County, California · implied b. ~1922 — 5 household members
| Surname | Robinson |
| Given Name | Martha |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Butte |
| Income (1939) | 0 |
| Highest Grade | H-4 |
| 1935 Residence | California |
| 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 Martha Robinson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Martha Robinson
Daughter · 1940 · age 18 · b. ~1922 · California
★ You are viewing this record
Sibling
Joseph Robinson
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Robinson
Sibling · 1940 · age 14
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
40 people indexed on this census page (nara:1940:m-t0627-00286-00090)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Joseph Robinson | 48 | Head | Engineer | Ireland |
| 2 | Ruth M. Robinson | 46 | Wife | Substitute Teacher | California |
| 3 | Joseph Jr. Robinson | 19 | Son | Laborer | California |
| 4 | Martha Robinson THIS PERSON | 18 | Daughter | — | California |
| 5 | Margaret Robinson | 14 | Daughter | — | California |
| 6 | Wesley W. Ward | 42 | Head | Inspector | Texas |
| 7 | Ida M. Ward | 43 | Wife | Substitute Teacher | California |
| 8 | Jeanne M. Ward | 15 | Daughter | — | California |
| 9 | Donald E. Ward | 12 | Son | — | California |
| 10 | Gilford H. Wood | 43 | Head | Glazier | California |
| 11 | Helen E. Wood | 39 | Wife | — | California |
| 12 | Thais F. Wood | 19 | Daughter | Telephone Operator | California |
| 13 | Edgar E. Potter | 42 | Head | Custodian | Missouri |
| 14 | Bella E. Potter | 37 | Wife | Egg Grader | California |
| 15 | A. Leland Potter | 15 | Son | — | California |
| 16 | Ralph L. Hubbard | 36 | Head | Asst. Draftsman | Missouri |
| 17 | Virginia Hubbard | 33 | Wife | Clerk | California |
| 18 | R. Lewis Jr. Hubbard | 5 | Son | — | California |
| 19 | Charles B. Hubbard | 4 | Son | — | California |
| 20 | Ann R. Reed | 28 | Head | Boiler Inspector | California |
| 21 | Margaret Ann Reed | 4 | Daughter | — | California |
| 22 | Albert J. Bastian | 37 | Head | Clerk | California |
| 23 | Nellie G. Bastian | 36 | Wife | File Clerk | California |
| 24 | Don Albert Bastian | 5 | Son | — | California |
| 25 | Christine C. Miller | 68 | Nurse maid | Nurse Maid | Germany |
| 26 | Alfred H. Kitchen | 37 | Head | Machinist | California |
| 27 | Mildred E. Kitchen | 35 | Wife | Typist | Minnesota |
| 28 | William D. Brown | 37 | Head | Clerk | Canada English |
| 29 | Myrtle J. Brown | 37 | Wife | Stenographer | North Dakota |
| 30 | Frank H. Grossa | 36 | Head | Shovel Operator | Kansas |
| 31 | Wilma D. Grossa | 33 | Wife | Saleslady | California |
| 32 | Jack Berretta | 38 | Head | Barber & Beauty Shop Owner | New York |
| 33 | Mildred J. Berretta | 37 | Wife | Clerk | California |
| 34 | Miner V. Kellogg | 31 | Head | Window Displayer | Canada |
| 35 | Letha M. Kellogg | 26 | Wife | Auditor | California |
| 36 | Alvin N. Kellogg | 2 | Son | — | California |
| 37 | Margaret Hill | 27 | Lodger | Social Worker | Idaho |
| 38 | Linda Hill | 5 | Lodger daughter | — | California |
| 39 | Ralph J. Francis | 33 | Head | Cabinet Maker | California |
| 40 | Francis | 33 | Wife | — | 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)