MP
Mary Power — 1900 US Census Record
Linked across censuses1900 United States Federal Census · San Francisco, California
Our Model Tree links this Mary Power across the 1900 and 1910 US Censuses in San Francisco, California (XGBoost, ~Confirmed) — first a spouse (b.~1858), then head of a 28-person household.
Age 42
b. ~1858
Female
Spouse
Born: Ireland
1900 Census Record Details
| Census Year | 1900 |
| Location | San Francisco, California |
| Surname | Power |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 42 |
| Marital Status | — |
| Birthplace | Ireland |
| Birth Year | 1858 |
| Year of Immigration | 1881 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Township / Ward | San Francisco |
| Est. Birth Year | ~1858 |
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.
28 people recorded at the same address in the 1900 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Anderson | Spouse | — | 30 | ~1870 |
| Peter Anderson | Other | — | 49 | ~1851 |
| James Power | Other | — | 23 | ~1877 |
| Joseph Castagnino | Son | — | 3 | ~1897 |
| William Graham | Other | — | 50 | ~1850 |
| James Kearney | Other | — | 50 | ~1850 |
| Mary Chincotta | Spouse | — | 33 | ~1867 |
| Caterina Cammetti | Other | — | 40 | ~1860 |
| Lillian Castagnino | Daughter | — | ~1900 | |
| John Wolf | Other | — | 64 | ~1836 |
| John Castagnino | Son | — | 13 | ~1887 |
| Annie Wolf | Spouse | — | 55 | ~1845 |
| John Massone | Other | — | 38 | ~1862 |
| Linda Castagnino | Spouse | — | 36 | ~1864 |
| Mary Power | Spouse | — | 42 | ~1858 |
| James Castagnino | Son | — | 8 | ~1892 |
| Antonio Chincotta | Other | — | 37 | ~1863 |
| Angel Chincotta | Son | — | 7 | ~1893 |
| Emma Anderson | Daughter | — | ~1900 | |
| Joe Corall | Other | — | — | |
| John Chincotta | Son | — | 8 | ~1892 |
| Patrick Power | Other | — | 50 | ~1850 |
| Annie Chincotta | Daughter | — | 3 | ~1897 |
| Alice Anderson | Daughter | — | 3 | ~1897 |
| Lillian Anderson | Daughter | — | 5 | ~1895 |
| Mary Massone | Spouse | — | 35 | ~1865 |
| Mabel Anderson | Daughter | — | 7 | ~1893 |
| John Castagnino | Head | — | 47 | ~1853 |
Census Appearances
1900
San Francisco, …
Spouse, age 42
San Francisco, California · implied b. ~1858 — 28 household members
| Surname | Power |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 42 |
| Birthplace | Ireland |
| Birth Year | 1858 |
| Year of Immigration | 1881 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1910
San Francisco, …
Spouse, age 55
San Francisco, California · implied b. ~1855 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Powers |
| Given Name | Mary A |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Ireland |
| Years Married | 35 |
| Children Born | 8 |
| Children Living | 7 |
| Year of Immigration | 1878 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
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 Power across 2 US Census years (1900 and 1910) in San Francisco, California, using XGBoost record linkage.
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This person
Anchor record
Mary Power
Spouse · 1900 · age 42 · b. ~1858 · California
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1900 US Federal Census — San Francisco, California
Open full size
1900 US Federal Census — San Francisco, California
Page Contents
50 people indexed on this census page (ia:1900:12thcensusofpopu0107unit:0995)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John Castagnino | 46 | Head | Fruit Dealer | Italy |
| 2 | Linda Castagnino | 36 | Wife | — | Italy |
| 3 | John Castagnino | 13 | Son | At School | California |
| 4 | James Castagnino | 8 | Son | At School | California |
| 5 | Joseph Castagnino | 2 | Son | — | California |
| 6 | Lillian Castagnino | 0 | Daughter | — | California |
| 7 | Antonio Chincotta | 37 | Boarder | Shoe Repairer | Italy |
| 8 | Mary Chincotta | 33 | Wife | — | Italy |
| 9 | John Chincotta | 7 | Son | At School | California |
| 10 | Angel Chincotta | 6 | Son | At School | California |
| 11 | Annie Chincotta | 3 | Daughter | — | California |
| 12 | Joe Corall | None | Boarder | Laborer | Italy |
| 13 | Patrick Power | 49 | Boarder | Capt. Police | Ireland |
| 14 | Mary Power THIS PERSON | 42 | Wife | — | Ireland |
| 15 | James Power | 23 | Boarder | Plumber | Ireland |
| 16 | James Kearney | 50 | Boarder | — | Ireland |
| 17 | Peter Anderson | 49 | Boarder | — | Denmark |
| 18 | Mary Anderson | 30 | Wife | — | — |
| 19 | Mabel Anderson | 7 | Daughter | Clerk | California |
| 20 | Lillian Anderson | 5 | Daughter | — | California |
| 21 | Alice Anderson | 3 | Daughter | — | California |
| 22 | Emma Anderson | 0 | Daughter | — | California |
| 23 | John Wolf | 64 | Boarder | Cooper | Germany |
| 24 | Annie Wolf | 55 | Wife | — | Germany |
| 25 | William Graham | 50 | Boarder | — | Ireland |
| 26 | Caterina Cammetti | 40 | Boarder | — | Italy |
| 27 | John Massone | 38 | Boarder | Laborer | Italy |
| 28 | Mary Massone | 35 | Wife | — | Italy |
| 29 | John Dondero | 61 | Head | — | Italy |
| 30 | Filomena Dondero | 48 | Wife | — | Italy |
| 31 | Romeo Dondero | 26 | Son | Clerk | California |
| 32 | Andrew Dondero | 20 | Son | — | California |
| 33 | Giacomo Dondero | 19 | Son | Landscape Gardener | California |
| 34 | Johnnie Dondero | 17 | Son | — | California |
| 35 | Annie Dondero | 15 | Daughter | Domestic | California |
| 36 | Eddie Dondero | 10 | Son | — | California |
| 37 | Angelo Dondero | 8 | Son | At School | California |
| 38 | Arthur Dondero | 5 | Son | At School | California |
| 39 | Angelo Boscally | 36 | Boarder | Fisherman | Italy |
| 40 | Linda Boscally | 25 | Wife | — | Italy |
| 41 | Frank Boscally | 2 | Son | — | California |
| 42 | Giaco Sudas | 58 | Head | Fisherman | Italy |
| 43 | Lalia Sudas | 46 | Wife | — | Italy |
| 44 | Stefano Sudas | 10 | Daughter | — | California |
| 45 | Enos Sudas | 8 | Son | — | California |
| 46 | Nick Poli | 60 | Head | — | Italy |
| 47 | Cosmina Poli | 50 | Wife | — | Italy |
| 48 | Stefano Poli | 24 | Son | Fisherman | Italy |
| 49 | John Poli | 17 | Son | Fisherman | Italy |
| 50 | Luigi Rindoli | 40 | Head | Fisherman | Italy |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1900 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)