MS
Mary Shaffer — 1900 US Census Record
Linked across censuses1900 United States Federal Census · Walla Walla, Washington
Our Model Tree links this Mary Shaffer across the 1900 and 1910 US Censuses in Walla Walla, Washington (XGBoost, ~Confirmed) — first a daughter (b.~1899), then head of a 6-person household.
Age 1
b. ~1899
Female
Daughter
Born: Washington
Single
1900 Census Record Details
| Census Year | 1900 |
| Location | Walla Walla, Washington |
| Surname | Shaffer |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Washington |
| Birth Month | Aug |
| Birth Year | 1899 |
| Father's Birthplace | Russia |
| Mother's Birthplace | Russia |
| Additional Details | |
| Can Read | No |
| Can Write | No |
| Speaks English | No |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
| Township / Ward | Stearns Precinct Walla Walla City |
| Est. Birth Year | ~1899 |
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.
6 people recorded at the same address in the 1900 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mabel Shaffer | Spouse | — | 27 | ~1873 |
| Margaret Shaffer | Daughter | — | 5 | ~1895 |
| Mary Shaffer | Daughter | — | 1 | ~1899 |
| Henry Shaffer | Son | — | 7 | ~1893 |
| Henry Shaffer | Head | — | 36 | ~1864 |
| Johnnie Shaffer | Son | — | 3 | ~1897 |
Census Appearances
1900
Walla Walla, …
Daughter, age 1
Walla Walla, Washington · implied b. ~1899 — 6 household members
| Surname | Shaffer |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Washington |
| Birth Month | Aug |
| Birth Year | 1899 |
| Father's Birthplace | Russia |
| Mother's Birthplace | Russia |
| Can Read | No |
| Can Write | No |
| Speaks English | No |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1910
Walla Walla, …
Daughter, age 9
Walla Walla, Washington · implied b. ~1901 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sheaffer |
| Given Name | Mollie |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Russia |
| Mother's Birthplace | Russia |
| Occupation | none |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
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 Shaffer across 2 US Census years (1900 and 1910) in Walla Walla, Washington, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Shaffer
Daughter · 1900 · age 1 · b. ~1899 · Washington
★ You are viewing this record
Sibling
Margaret Shaffer
Sibling · 1900 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Henry Shaffer
Sibling · 1900 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Johnnie Shaffer
Sibling · 1900 · age 3
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
1900 US Federal Census — Walla Walla, Washington
Open full size
1900 US Federal Census — Walla Walla, Washington
Page Contents
50 people indexed on this census page (ia:1900:12thcensusofpopu1752unit:0813)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Bruce Biersner | 14 | Son | At School | Washington |
| 2 | John Biersner | 40 | Head | Malt Mixer | Iowa |
| 3 | Martha Biersner | 27 | Wife | — | Germany |
| 4 | Edward Biersner | 1 | Son | — | Washington |
| 5 | Eva J Moorhouse | 39 | Head | — | Oregon |
| 6 | Ethel Moorhouse | 21 | Daughter | School Teacher | Oregon |
| 7 | Edna Moorhouse | 20 | Daughter | At School | Oregon |
| 8 | Bruce Crawford | 37 | Head | Carpenter | Oregon |
| 9 | Mary Crawford | 45 | Wife | — | Oregon |
| 10 | George E Thompson | 54 | Head | Attorney | Ireland |
| 11 | Nellie Thompson | 42 | Wife | — | Washington |
| 12 | Arthur J Thompson | 18 | Son | Law Clerk | Washington |
| 13 | George M Thompson | 16 | Son | At School | Washington |
| 14 | Nellie Thompson | 14 | Daughter | At School | Washington |
| 15 | Francis Marion Thompson | 10 | Son | At School | Washington |
| 16 | Grace J Thompson | 5 | Daughter | — | Washington |
| 17 | Herbert J Thompson | 2 | Son | — | Washington |
| 18 | Carrie Mcginnis | 45 | Servant | House Servant | Wisconsin |
| 19 | Clara J Pickard | 44 | Head | Undertaker | California |
| 20 | Mary Borsch | 27 | Daughter | — | Washington |
| 21 | Frank W Borsch | 34 | Son-in-law | Book Keeper | Pennsylvania |
| 22 | Thomas Picard | 18 | Son | At School | Washington |
| 23 | Alice J Faucette | 51 | Head | — | Missouri |
| 24 | Annie Faucette | 26 | Daughter | — | Washington |
| 25 | Geoffrey Faucette | 24 | Son | Engineer Fire Dept | Washington |
| 26 | Lydia Mosier | 36 | Sister | — | Oregon |
| 27 | Blasier Rosher | 20 | Boarder | Saleslady | Washington |
| 28 | Oscar Johnson | 30 | Head | Merchant | Sweden |
| 29 | William Johnson | 25 | Brother | Salesman | Sweden |
| 30 | Ruth J Rooks | 28 | Head | — | Washington |
| 31 | Harold Rooks | 8 | Son | At School | Washington |
| 32 | Lowell Rooks | 7 | Son | At School | Washington |
| 33 | Bernadine Rooks | 3 | Daughter | — | Washington |
| 34 | Homer Gallaher | 27 | Boarder | Minister | Oregon |
| 35 | Louisant Chabot | 65 | Head | Ice Dealer | Canada (Fr) |
| 36 | James Casey | 50 | Head | Saloon Keeper | New York |
| 37 | Mary J Casey | 37 | Wife | — | Illinois |
| 38 | Thomas Casey | 15 | Son | At School | Michigan |
| 39 | James Casey | 11 | Son | At School | Arizona |
| 40 | Rena Casey | 6 | Son | At School | Washington |
| 41 | Paul Casey | 2 | Son | — | Washington |
| 42 | Henry Shaffer | 35 | Head | Day Laborer | Russia |
| 43 | Mabel Shaffer | 26 | Wife | — | Russia |
| 44 | Henry Shaffer | 6 | Son | — | Washington |
| 45 | Margaret Shaffer | 4 | Daughter | — | Washington |
| 46 | Johnnie Shaffer | 2 | Son | — | Washington |
| 47 | Mary Shaffer THIS PERSON | 12 | Daughter | — | Washington |
| 48 | Rose Benjamin | 34 | Head | — | Oregon |
| 49 | Minnie Benjamin | 15 | Daughter | — | Oregon |
| 50 | Oliver Benjamin | 12 | Son | At School | Oregon |
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)