MK
Mary Koch — 1910 US Census Record
Linked across censuses1910 United States Federal Census · San Francisco, California
Our Model Tree links this Mary Koch across the 1900 and 1910 US Censuses in San Francisco, California (XGBoost, ~Confirmed) — first a spouse (b.~1858), then head of a 8-person household.
Age 52
b. ~1858
Female
Spouse
Born: Germany
Married
1910 Census Record Details
| Census Year | 1910 |
| Location | San Francisco, California |
| Surname | Koch |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Germany |
| Years Married | 28 |
| Children Born | 9 |
| Children Living | 8 |
| Year of Immigration | 1883 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Additional Details | |
| Birth Country | Germany |
| Birthplace (normalized) | germany |
| Township / Ward | San Francisco City Part Of |
| 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.
8 people recorded at the same address in the 1910 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Ernest Koch | Head | — | 53 | ~1857 |
| Mary Koch | Spouse | — | 52 | ~1858 |
| Karl Koch | Son | — | 23 | ~1887 |
| Ernest Koch | Son | — | 16 | ~1894 |
| William Koch | Son | — | 27 | ~1883 |
| Anton Koch | Son | — | 18 | ~1892 |
| Lilly Koch | Daughter | — | 21 | ~1889 |
| Walter Koch | Son | — | 12 | ~1898 |
Census Appearances
1900
San Francisco, …
Spouse, age 43
San Francisco, California · implied b. ~1857 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Koch |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Germany |
| Birth Month | July |
| Birth Year | 1857 |
| Year of Immigration | 1872 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth Country | Germany |
| Birthplace (normalized) | germany |
1910
San Francisco, …
Spouse, age 52
San Francisco, California · implied b. ~1858 — 8 household members
| Surname | Koch |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Germany |
| Years Married | 28 |
| Children Born | 9 |
| Children Living | 8 |
| Year of Immigration | 1883 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Birth Country | Germany |
| Birthplace (normalized) | germany |
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 Koch 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 Koch
Spouse · 1910 · age 52 · b. ~1858 · California
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1910 US Federal Census — San Francisco, California
Open full size
1910 US Federal Census — San Francisco, California
Page Contents
48 people indexed on this census page (ia:1910:13thcensus1910po0097unit:0482)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Matthew Chevalier | 34 | Head | Engineer | France |
| 52 | Marie Chevalier | 35 | Wife | — | France |
| 53 | Josephine Chevalier | 14 | Daughter | — | California |
| 54 | Antoinette Chevalier | 12 | Daughter | — | California |
| 55 | John Russo | 27 | Head | Carpenter | Italy |
| 56 | Emma Russo | 24 | Wife | — | Italy |
| 57 | Thomas C. Clancy | 77 | Head | Own Income | Ireland |
| 58 | Ann W. Clancy | 70 | Wife | — | Ireland |
| 59 | Joseph A. Clancy | 35 | Son | Own Income | California |
| 60 | Andrew De Benedetti | 41 | Head | Builder | Italy |
| 61 | Flora De Benedetti | 33 | Wife | — | Italy |
| 62 | Alfred J. De Benedetti | 12 | Son | — | Italy |
| 63 | Amelia De Benedetti | 10 | Daughter | — | Italy |
| 64 | Ernest L. De Benedetti | 7 | Son | — | California |
| 65 | Victor L. De Benedetti | 4 | Son | — | California |
| 66 | Joseph Ballauf | 37 | Head | Carpenter | Germany |
| 67 | Victoria Ballauf | 20 | Wife | — | Germany |
| 68 | Mary Nelly | 46 | Head | — | Ireland |
| 69 | Cornelius Clark | 48 | Head | Iron Moulder | Ireland |
| 70 | Margaret Clark | 45 | Wife | — | Ireland |
| 71 | Elizabeth Clark | 21 | Daughter | Stenographer | California |
| 72 | Edward J. Clark | 10 | Son | — | California |
| 73 | Antonio Conardini | 44 | Head | Labourer | Italy |
| 74 | Celestina Conardini | 35 | Wife | — | Italy |
| 75 | Mary Conardini | 16 | Daughter | Apprentice | California |
| 76 | Della Conardini | 15 | Daughter | — | California |
| 77 | Katie Conardini | 13 | Daughter | — | California |
| 78 | Olivia Conardini | 11 | Daughter | — | California |
| 79 | Louisa Conardini | 9 | Daughter | — | California |
| 80 | Antoinette Conardini | 6 | Daughter | — | California |
| 81 | Josie Conardini | 4 | Daughter | — | California |
| 82 | Antonio Conardini | 2 | Son | — | California |
| 83 | Mary A. Meincke | 48 | Head | — | California |
| 84 | Frederick Meincke | 32 | Son | Clerk | California |
| 85 | Gertrude E. Meincke | 28 | Daughter | Operator | California |
| 86 | Hattie W. Meincke | 24 | Daughter | Stenographer | California |
| 87 | Eva M. Meincke | 21 | Daughter | Milliner | California |
| 88 | Ralph M. Meincke | 19 | Son | Labourer | California |
| 89 | Charles M. Meincke | 17 | Son | Moulder | California |
| 90 | Grace F. Meincke | 15 | Daughter | — | California |
| 91 | Ernest A. Koch | 53 | Head | Maltster | Germany |
| 92 | Mary Koch THIS PERSON | 52 | Wife | — | Germany |
| 93 | William G. Koch | 27 | Son | Blacksmith | Iowa |
| 94 | Karl Koch | 23 | Son | Moulder | California |
| 95 | Lilly A. Koch | 21 | Daughter | — | California |
| 96 | Anton J. Koch | 18 | Son | Carpenter | California |
| 97 | Ernest G. Koch | 16 | Son | Apprentice | California |
| 98 | Walter R. Koch | 12 | Son | — | California |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1910 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)