MG
Mary Grace — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Butte, California
Our Model Tree links this Mary Grace across the 1910 and 1920 US Censuses in Butte, California (XGBoost, ~Confirmed) — first a daughter (b.~1907), then head of a 9-person household.
Age 13
b. ~1907
Female
Daughter
Born: Minnesota
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Butte, California |
| Surname | Grace |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Minnesota |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Township / Ward | Chico City |
| Est. Birth Year | ~1907 |
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 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Grace | Daughter | — | 13 | ~1907 |
| John Grace | Son | — | 25 | ~1895 |
| James Grace | Son | — | 20 | ~1900 |
| Vincent Grace | Son | — | 23 | ~1897 |
| John Grace | Other | — | 58 | ~1862 |
| Anna Grace | Daughter | — | 10 | ~1910 |
| Eileen Grace | Daughter | — | 12 | ~1908 |
| William Grace | Head | — | 54 | ~1866 |
| Ellen Grace | Spouse | — | 49 | ~1871 |
Census Appearances
1910
Butte, California
Daughter, age 4
Butte, California · implied b. ~1906 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Grace |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Minnesota |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1920
Butte, California
Daughter, age 13
Butte, California · implied b. ~1907 — 9 household members
| Surname | Grace |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Minnesota |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
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 Grace across 2 US Census years (1910 and 1920) in Butte, California, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Grace
Daughter · 1920 · age 13 · b. ~1907 · California
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Sibling
James Grace
Sibling · 1920 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anna Grace
Sibling · 1920 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Grace
Sibling · 1920 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Vincent Grace
Sibling · 1920 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eileen Grace
Sibling · 1920 · age 12
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
1920 US Federal Census — Butte, California
Open full size
1920 US Federal Census — Butte, California
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu094unit:0294)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Henry James | 44 | Head | Manager | Illinois |
| 2 | Emma James | 42 | Wife | — | California |
| 3 | Henry James | 16 | Son | Machinist Helper | California |
| 4 | Philip James | 14 | Son | — | California |
| 5 | Emma James | 11 | Daughter | — | California |
| 6 | Henrietta Phillips | 67 | Head | — | Indiana |
| 7 | Mary Phillips | 61 | Sister | — | Illinois |
| 8 | Marietta Phillips | 56 | Sister | — | Illinois |
| 9 | Esther Patterson | 65 | Head | — | Missouri |
| 10 | George Lee Banks | 46 | Son-in-law | Bookkeeper | N.S. |
| 11 | Pearl Banks | 42 | Daughter | — | Missouri |
| 12 | Edward Frank Morris | 69 | Head | Janitor | Massachusetts |
| 13 | Katie Morris | 59 | Wife | — | Minnesota |
| 14 | Clara S. Swearingen | 57 | Head | Teacher | Indiana |
| 15 | Frances B. Swearingen | 26 | Daughter-in-law | Mechanic | Illinois |
| 16 | Ronald E. Swearingen | 4 | Grand-son | — | California |
| 17 | William Grace | 54 | Head | Groceryman | Minnesota |
| 18 | Ellen Grace | 49 | Wife | — | Minnesota |
| 19 | John Grace | 25 | Son | Groceryman | Minnesota |
| 20 | Vincent Grace | 23 | Son | Laborer | Minnesota |
| 21 | James Grace | 20 | Son | — | Minnesota |
| 22 | Mary Grace THIS PERSON | 13 | Daughter | — | Minnesota |
| 23 | Eileen Grace | 12 | Daughter | — | Minnesota |
| 24 | Anna Grace | 10 | Daughter | — | California |
| 25 | John Grace | 58 | Brother | — | Minnesota |
| 26 | Agnes Elder | 50 | Head | — | Scotland |
| 27 | Boddie Gray | 50 | Head | — | California |
| 28 | Wesley A. Gray | 31 | Son | Driver | California |
| 29 | John F. Rempley | 50 | Head | Blacksmith | Iowa |
| 30 | Annie Rempley | 47 | Wife | — | Pennsylvania |
| 31 | Niel Rempley | 22 | Son | Laborer | Iowa |
| 32 | Stella Rempley | 20 | Daughter | Waitress | Iowa |
| 33 | Mabel Rempley | 18 | Daughter | Cook'S Helper | Iowa |
| 34 | Glenn Rempley | 16 | Son | Laborer | Iowa |
| 35 | Alice Rempley | 14 | Daughter | — | California |
| 36 | John Rempley | 11 | Son | — | California |
| 37 | Hazel Rempley | 9 | Daughter | — | California |
| 38 | George B. Milton | 52 | Head | Laborer | Tennessee |
| 39 | Ida M. Milton | 42 | Wife | — | Ohio |
| 40 | John Campbell | 65 | Head | Saw-Filer | Missouri |
| 41 | Nancy Campbell | 61 | Wife | — | Oregon |
| 42 | James Campbell | 33 | Son | Engineer | California |
| 43 | Warren Hatcher | 31 | Son-in-law | Brakeman | California |
| 44 | Dot Hatcher | 26 | Daughter | Teacher | Washington |
| 45 | Roland March | 30 | Head | Laborer | California |
| 46 | Jessie March | 25 | Wife | — | California |
| 47 | Howard March | 8 | Son | — | California |
| 48 | Herbert March | 5 | Son | — | California |
| 49 | Donald March | 3 | Son | — | California |
| 50 | Isaac Williams | 27 | Head | Laborer | California |
Related Census Records
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)