MC
Mary Costello — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Big Stone, Minnesota
Our Model Tree links this Mary Costello across the 1910 and 1920 US Censuses in Big Stone, Minnesota (XGBoost, ~Confirmed) — first a daughter (b.~1905), then head of a 8-person household.
Age 15
b. ~1905
Female
Daughter
Born: Minnesota
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Big Stone, Minnesota |
| Surname | Costello |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Wisconsin |
| Additional Details | |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Township / Ward | Moonshine Twp |
| Est. Birth Year | ~1905 |
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.
8 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Eileen Costello | Daughter | — | 10 | ~1910 |
| Ruth Costello | Daughter | — | 1 | ~1919 |
| Mary Costello | Daughter | — | 15 | ~1905 |
| Margarete Costello | Daughter | — | 8 | ~1912 |
| Charles Costello | Daughter | — | 13 | ~1907 |
| Frances Costello | Daughter | — | 4 | ~1916 |
| John Costello | Head | — | 57 | ~1863 |
| Clara Costello | Spouse | — | 37 | ~1883 |
Census Appearances
1910
Big Stone, …
Daughter, age 6
Big Stone, Minnesota · implied b. ~1904 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Costello |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Wisconsin |
| Occupation | none |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1920
Big Stone, …
Daughter, age 15
Big Stone, Minnesota · implied b. ~1905 — 8 household members
| Surname | Costello |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Wisconsin |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| 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 Costello across 2 US Census years (1910 and 1920) in Big Stone, Minnesota, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Costello
Daughter · 1920 · age 15 · b. ~1905 · Minnesota
★ You are viewing this record
Sibling
Charles Costello
Sibling · 1920 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margarete Costello
Sibling · 1920 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Costello
Sibling · 1920 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eileen Costello
Sibling · 1920 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frances Costello
Sibling · 1920 · age 4
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 — Big Stone, Minnesota
Open full size
1920 US Federal Census — Big Stone, Minnesota
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu822unit:0509)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Fred Hurtig | 3 | Son | None | Iowa |
| 52 | Albert Hurtig | 21 | partner | Farmer | Iowa |
| 53 | Cristopher P Hansen | 46 | Head | Farmer | Denmark |
| 54 | Abbie Hansen | 41 | Wife | None | Denmark |
| 55 | Lesslie Hansen | 18 | Son | Farm Labor | Iowa |
| 56 | Agnetta Hansen | 15 | Son | None | N Dakota |
| 57 | Curtis Hansen | 14 | Son | None | N Dakota |
| 58 | Dorthy Hansen | 12 | Daughter | None | N Dakota |
| 59 | Ruby Hansen | 10 | Daughter | None | N Dakota |
| 60 | Fred Schultof | 26 | Head | Farmer | Minnesota |
| 61 | Tessa Schultof | 66 | Mother | None | Norway |
| 62 | Thalia Schultof | 29 | Sister | Housekeeper | Minnesota |
| 63 | Oscar Schultof | 23 | Brother | Farmer | Minnesota |
| 64 | Reinhold Lahr | 43 | Head | Farmer | Germany |
| 65 | Mary Lahr | 32 | Wife | None | Illinois |
| 66 | Ernest Lahr | 13 | Son | None | Minnesota |
| 67 | Fred Lahr | 10 | Son | None | Minnesota |
| 68 | Peter A Larson | 29 | Head | Farmer | Denmark |
| 69 | John G Costello | 57 | Head | Farmer | Ireland |
| 70 | Clara Elenore Costello | 37 | Wife | None | Wisconsin |
| 71 | Mary Costello THIS PERSON | 15 | Daughter | None | Minnesota |
| 72 | Charles Costello | 13 | Daughter | None | Minnesota |
| 73 | Eileen Costello | 10 | Daughter | None | Minnesota |
| 74 | Margarete Costello | 8 | Daughter | None | Minnesota |
| 75 | Frances Costello | 4 | Daughter | None | Minnesota |
| 76 | Ruth Costello | 1 | Daughter | None | Minnesota |
| 77 | Roland Carlson | 57 | Head | Farmer | Sweden |
| 78 | Carry Carlson | 53 | Wife | None | Sweden |
| 79 | Oscar Carlson | 25 | Son | None | Minnesota |
| 80 | Ernest Carlson | 24 | Son | Farm Labor | Minnesota |
| 81 | Eloie Carlson | 21 | Daughter | None | Minnesota |
| 82 | Alvin Carlson | 11 | Son | None | Minnesota |
| 83 | Elveria Carlson | 11 | Daughter | None | Minnesota |
| 84 | Dennis D Enno | 53 | Head | Farmer | Ireland |
| 85 | Bridget Enno | 41 | Wife | None | Ireland |
| 86 | Winifred Enno | 21 | Daughter | Nurse | Minnesota |
| 87 | Isabel Enno | 19 | Daughter | None | Minnesota |
| 88 | Tom Enno | 18 | Son | None | Minnesota |
| 89 | Dennis Enno | 17 | Son | Farm Labor | Minnesota |
| 90 | Alice Enno | 16 | Daughter | None | Minnesota |
| 91 | Alvin Enno | 14 | Son | None | Minnesota |
| 92 | Adeline Enno | 12 | Daughter | None | Minnesota |
| 93 | Roger Enno | 10 | Son | None | Minnesota |
| 94 | Leona Enno | 8 | Daughter | None | Minnesota |
| 95 | Arthur Enno | 5 | Son | None | Minnesota |
| 96 | Myra Enno | 4 | Daughter | None | Minnesota |
| 97 | Leo Enno | 1 | Son | None | Minnesota |
| 98 | Jens Hansen | 42 | Head | Farmer | Denmark |
| 99 | Amelia Hansen | 33 | Wife | None | South Dakota |
| 100 | Arthur Hansen | 12 | Son | None | Minnesota |
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)