MP
Mary Potter — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Los-Angeles-County, California
Our Model Tree links this Mary Potter across the 1930 and 1940 US Censuses in Los-Angeles-County, California (XGBoost, ~Confirmed) — first a daughter (b.~1922), then head of a 7-person household.
Age 18
b. ~1922
Female
Daughter
Born: California
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Los-Angeles-County, California |
| Surname | Potter |
| Given Name | Mary |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Santa Monica City |
| 1935 Residence (County) | Los Angeles |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | C 4 |
| 1935 Residence | Same place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Township / Ward | Santa Monica 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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Potter | Daughter | — | 18 | ~1922 |
| Florence Potter | Daughter | — | 17 | ~1923 |
| Gertrude Potter | Daughter | — | 10 | ~1930 |
| Joseph Potter | Head | — | 48 | ~1892 |
| Joseph Potter | Son | — | 14 | ~1926 |
| John Potter | Son | — | 8 | ~1932 |
| Mabel Potter | Spouse | — | 50 | ~1890 |
Census Appearances
1930
Los Angeles, …
Daughter, age 8
Los Angeles, California · implied b. ~1922 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Potter |
| Given Name | M. F. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
Los-Angeles-County, California
Daughter, age 18
Los-Angeles-County, California · implied b. ~1922 — 7 household members
| Surname | Potter |
| Given Name | Mary |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Santa Monica City |
| 1935 Residence (County) | Los Angeles |
| Class of Worker | 0 |
| Highest Grade | C 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 Mary Potter across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Potter
Daughter · 1940 · age 18 · b. ~1922 · California
★ You are viewing this record
Sibling
John Potter
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gertrude Potter
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Potter
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Florence Potter
Sibling · 1940 · age 17
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 — Los-Angeles-County, California
Open full size
1940 US Federal Census — Los-Angeles-County, California
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00257-00095)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Kathleen Ambrose | 7 | daughter | — | California |
| 42 | Anna Rygaard | 65 | mother in law | — | Michigan |
| 43 | Howard Rygaard | 40 | brother in law | Cement Worker | Montana |
| 44 | Arnold Recesal | 63 | head | — | Austria |
| 45 | Alice Recesal | 51 | wife | — | New Jersey |
| 46 | William Ingels | 33 | head | — | Michigan |
| 47 | Martha Ingels | 27 | wife | — | Iowa |
| 48 | Clement Ingels | 4 | son | — | Michigan |
| 49 | William Jr Ingels | 0 | son | — | Nebraska |
| 50 | Leonilla Murphy | 32 | lodger | Dry Cleaner | Illinois |
| 51 | Clarence Olson | 39 | head | Dry Cleaner | N Dakota |
| 52 | Martha Olson | 36 | wife | Mechanic | Missouri |
| 53 | Harris Olson | 14 | son | — | California |
| 54 | John Jennings | 31 | head | — | Kansas |
| 55 | Ethel Jennings | 30 | wife | — | Massachusetts |
| 56 | John C. Jennings | 2 | son | — | California |
| 57 | Willard Pissey | 36 | head | Accountant | Idaho |
| 58 | Charlotte Pissey | 32 | wife | Salesman | Germany |
| 59 | Roland Pissey | 5 | son | — | California |
| 60 | Gordon Pissey | 3 | son | — | California |
| 61 | Martha Mority | 63 | mother in law | — | Germany |
| 62 | Blanche Nelson | 58 | head | — | Minnesota |
| 63 | Caroline Fitzgerald | 57 | sister | — | Minnesota |
| 64 | Joseph Potter | 48 | head | Teacher | England |
| 65 | Mabel Potter | 50 | wife | Tool Maker | Rhode Island |
| 66 | Mary Potter THIS PERSON | 18 | daughter | — | California |
| 67 | Florence Potter | 17 | daughter | Tool Typist | California |
| 68 | Joseph Jr Potter | 14 | son | — | California |
| 69 | Gertrude Potter | 10 | daughter | — | California |
| 70 | John Potter | 8 | son | — | California |
| 71 | Frederick Friday | 57 | head | — | Illinois |
| 72 | Anna Friday | 83 | mother | Electrician | Pennsylvania |
| 73 | George Kings | 56 | head | — | England |
| 74 | Sarah Kings | 50 | wife | Maintenance Worker | England |
| 75 | Laura Adams | 10 | daughter | — | California |
| 76 | Louis Adams | 23 | lodger | — | Tennessee |
| 77 | Isabel Wilson | 62 | head | — | Pennsylvania |
| 78 | Monty Hedges | 69 | sister | — | Pennsylvania |
| 79 | Simon Premaeler | 62 | head | — | Holland |
| 80 | Esther Premaeler | 66 | wife | Salesclerk | Holland |
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)