MR
Margaret Robertson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Marin-County, California
Our Model Tree links this Margaret Robertson across the 1930 and 1940 US Censuses in Marin-County, California (XGBoost, ~Confirmed) — first a daughter (b.~1927), then head of a 6-person household.
Age 13
b. ~1927
Female
Daughter
Born: Scotland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Marin-County, California |
| Surname | Robertson |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Scotland |
| 1935 Residence (City) | San Rafael |
| 1935 Residence (County) | Marin |
| Naturalization Status | Alien |
| Additional Details | |
| Highest Grade | G 7 |
| 1935 Residence | Same Place |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
| Township / Ward | San Rafael |
| Est. Birth Year | ~1927 |
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 Margaret | Age | Birth yr |
|---|---|---|---|---|
| John Robertson | Head | — | 54 | ~1886 |
| John Robertson | Son | — | 16 | ~1924 |
| Catherine Robertson | Daughter | — | 18 | ~1922 |
| Bessie Robertson | Spouse | — | 50 | ~1890 |
| Charlotte Robertson | Daughter | — | 20 | ~1920 |
| Margaret Robertson | Daughter | — | 13 | ~1927 |
Census Appearances
1930
Marin, California
Daughter, age 2
Marin, California · implied b. ~1928 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Robertson |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Scotland |
| Naturalization Status | Alien |
| Year of Immigration | 1929 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Mother Tongue | English |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1940
Marin-County, California
Daughter, age 13
Marin-County, California · implied b. ~1927 — 6 household members
| Surname | Robertson |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Scotland |
| 1935 Residence (City) | San Rafael |
| 1935 Residence (County) | Marin |
| Naturalization Status | Alien |
| Highest Grade | G 7 |
| 1935 Residence | Same Place |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
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 Margaret Robertson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Margaret Robertson
Daughter · 1940 · age 13 · b. ~1927 · California
★ You are viewing this record
Sibling
Charlotte Robertson
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Robertson
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Robertson
Sibling · 1940 · age 16
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 — Marin-County, California
Open full size
1940 US Federal Census — Marin-County, California
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00261-00670)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Bernice Gloden | 29 | Wife | — | Texas |
| 42 | George Crotts | 31 | Head | Lineman | California |
| 43 | Mary Crotts | 31 | Wife | — | Washington |
| 44 | George Jr. Crotts | 7 | Son | — | California |
| 45 | Lois Anne Crotts | 5 | Daughter | — | California |
| 46 | Carol Jean Crotts | 3 | Daughter | — | California |
| 47 | Diane Antoinette Crotts | 1 | Daughter | — | California |
| 48 | Carl Augusto | 21 | Head | Welder | California |
| 49 | Marie Augusto | 26 | Wife | — | Italy |
| 50 | Rita Augusto | 7 | Daughter | — | California |
| 51 | Rose Ash | 74 | Head | — | California |
| 52 | Florence Ash | 35 | Daughter | — | California |
| 53 | John Murphy | 52 | Head | Head Prince | Ireland |
| 54 | Minnie Murphy | 52 | Wife | — | England |
| 55 | Adam Lindgren | 49 | Lodger | — | Finland |
| 56 | John H. Robertson | 54 | Head | Gardener | Scotland |
| 57 | Bessie Robertson | 50 | Wife | — | Scotland |
| 58 | Charlotte Robertson | 20 | Daughter | Nurse Maid | Scotland |
| 59 | Catherine Robertson | 18 | Daughter | — | Scotland |
| 60 | John Robertson | 16 | Son | Delivery Boy | Scotland |
| 61 | Margaret Robertson THIS PERSON | 13 | Daughter | — | Scotland |
| 62 | Anthony Eberwein | 36 | Head | Roofer | California |
| 63 | Dorothy Eberwein | 34 | Wife | Operator | California |
| 64 | Leland Aherns | 12 | Step-son | — | California |
| 65 | Betty Jean Aherns | 10 | Step-daughter | — | California |
| 66 | Mickey Mckinney | 34 | Head | Clerk | California |
| 67 | Ursula Mckinney | 28 | Wife | — | California |
| 68 | Lorraine Mckinney | 4 | Daughter | — | California |
| 69 | Warren L. Clark | 57 | Head | Carpenter | California |
| 70 | Jessie H. Clark | 53 | Wife | — | California |
| 71 | Warren L. Clark | 27 | Son | Light Rated | California |
| 72 | Thomas Beyer | 31 | Head | Auto Painter | California |
| 73 | Margaret Beyer | 30 | Wife | — | Minnesota |
| 74 | Richard Beyer | 12 | Son | — | California |
| 75 | Thomas J. Beyer | 4 | Son | — | California |
| 76 | James Mabar | 69 | Head | — | California |
| 77 | Charles Prutted | 42 | Head | Candler | Kansas |
| 78 | Ruth Prutted | 40 | Wife | — | New Mexico |
| 79 | Jack Prutted | 13 | Son | — | California |
| 80 | James Prutted | 10 | Son | — | 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)