MG
Mary Graves — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Los-Angeles-County, California
Our Model Tree links this Mary Graves across the 1920, 1930 and 1940 US Censuses in Los-Angeles-County, California (XGBoost, ~Confirmed) — first a head (b.~1856), then head of a 9-person household.
Age 84
b. ~1856
Female
Head
Born: Connecticut
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Los-Angeles-County, California |
| Surname | Graves |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 84 |
| Marital Status | Widowed |
| Birthplace | Connecticut |
| 1935 Residence (City) | Whittier City |
| 1935 Residence (County) | Los Angeles |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Connecticut |
| Birth Country | United States |
| Birthplace (normalized) | connecticut |
| Township / Ward | Whittier City |
| Est. Birth Year | ~1856 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Pauline Mcguire | Daughter | — | 9 | ~1931 |
| Angel Mcguire | Daughter | — | 15 | ~1925 |
| Raymond Mcguire | Son | — | 17 | ~1923 |
| Cora Smith | Other | — | 60 | ~1880 |
| Marie Mcguire | Daughter | — | 5 | ~1935 |
| Carrie Graves | Daughter | — | 53 | ~1887 |
| Betty Mcguire | Daughter | — | 11 | ~1929 |
| Mary Graves | Head | — | 84 | ~1856 |
| Jessie Mcguire | Spouse | — | 43 | ~1897 |
Census Appearances
1920
Los Angeles, …
Spouse, age 64
Los Angeles, California · implied b. ~1856 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Graves |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 64 |
| Marital Status | Married |
| Birthplace | Connecticut |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Connecticut |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Connecticut |
| Birth Country | United States |
| Birthplace (normalized) | connecticut |
1930
Los Angeles, …
Other, age 74
Los Angeles, California · implied b. ~1856 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Graves |
| Given Name | Mary W |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 74 |
| Marital Status | Married |
| Birthplace | Connecticut |
| Age at First Marriage | 18 |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Connecticut |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Connecticut |
| Birth Country | United States |
| Birthplace (normalized) | connecticut |
1940
Los-Angeles-County, California
Head, age 84
Los-Angeles-County, California · implied b. ~1856 — 9 household members
| Surname | Graves |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 84 |
| Marital Status | Widowed |
| Birthplace | Connecticut |
| 1935 Residence (City) | Whittier City |
| 1935 Residence (County) | Los Angeles |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Connecticut |
| Birth Country | United States |
| Birthplace (normalized) | connecticut |
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 Graves across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Graves
Head · 1940 · age 84 · b. ~1856 · California
★ You are viewing this record
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
39 people indexed on this census page (nara:1940:m-t0627-00259-00408)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Elizabeth Fletcher | 56 | Wife | — | California |
| 42 | Martha Fletcher | 16 | Daughter | — | California |
| 43 | David Fletcher | 14 | Son | — | California |
| 44 | James F. Traft | 47 | Head | Checker | Pennsylvania |
| 45 | Sarah Traft | 44 | Wife | — | Pennsylvania |
| 46 | Wilbur Traft | 22 | Son | Truck Driver | Pennsylvania |
| 47 | Richard B. Traft | 12 | Son | — | Pennsylvania |
| 48 | George Henry | 58 | Head | Superintendent | Switzerland |
| 49 | Nancy Henry | 77 | Wife | — | Switzerland |
| 50 | Herman Hamilton | 58 | Head | Farmer | Missouri |
| 51 | Nannie Hamilton | 56 | Wife | — | Kansas |
| 52 | James Hamilton | 70 | Brother | — | Ohio |
| 53 | Milford Baxter | 73 | Head | Tree Pruner | Canada English |
| 54 | Rebecca Trappey | Trappey | 69 | Lodger | — | Missouri |
| 55 | James J. Cabb | 56 | Head | — | Tennessee |
| 56 | Minnie Cabb | 57 | Wife | Seamstress | Arkansas |
| 57 | Anna Hess | 65 | Head | — | Missouri |
| 58 | Mary Graves THIS PERSON | 84 | Head | — | Connecticut |
| 59 | Carrie Graves | 53 | Daughter | Bookkeeper | Connecticut |
| 60 | Cora Smith | 60 | Housekeeper | Housekeeper & Companion | Indiana |
| 62 | Jessie Mcguire | 43 | Wife | — | Lower California |
| 63 | Raymond Jr. Mcguire | 17 | Son | — | California |
| 64 | Angel Mcguire | 15 | Daughter | — | California |
| 65 | Betty Mcguire | 11 | Daughter | — | California |
| 66 | Pauline Mcguire | 9 | Daughter | — | California |
| 67 | Marie Mcguire | 5 | Daughter | — | California |
| 68 | Roy E. Stucker | 43 | Head | Operate Cement Mixer | Kansas |
| 69 | Mary Alice Stucker | 41 | Wife | — | Colorado |
| 70 | Calvin L. Stucker | 21 | Son | Biological Asst. & Entomology | Colorado |
| 71 | Marjorie E. Stucker | 18 | Daughter | Office Assistant | Colorado |
| 72 | Beulah M. Stucker | 9 | Daughter | — | California |
| 73 | Stanford Smith | 37 | Head | Farm Foreman | Missouri |
| 74 | Myrtle Smith | 29 | Wife | — | Oklahoma |
| 75 | Roberta F. Smith | 9 | Daughter | — | Oklahoma |
| 76 | Dolores Smith | 7 | Daughter | — | Oklahoma |
| 77 | Alex Gulley | 22 | Lodger | Attendant | Missouri |
| 78 | John Buttram | 21 | Brother-in-law | Farm Laborer | Arkansas |
| 79 | Simon L. Thomas | 51 | Head | Driller | Arkansas |
| 80 | William Schroeder | 68 | Head | — | Iowa |
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)