MK
Mary Kerr — 1910 US Census Record
Linked across censuses1910 United States Federal Census · San Luis Obispo, California
Our Model Tree links this Mary Kerr across the 1900 and 1910 US Censuses in San Luis Obispo, California (XGBoost, ~Confirmed) — first a head (b.~1855), then head of a 7-person household.
Age 55
b. ~1855
Female
Head
Born: Indiana
Widowed
1910 Census Record Details
| Census Year | 1910 |
| Location | San Luis Obispo, California |
| Surname | Kerr |
| Given Name | Mary E |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 55 |
| Marital Status | Widowed |
| Birthplace | Indiana |
| Years Married | 32 |
| Children Born | 6 |
| Children Living | 5 |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Township / Ward | Cholame Township Shandon Precinct |
| Est. Birth Year | ~1855 |
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.
7 people recorded at the same address in the 1910 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Thomas Kerr | Son | — | 27 | ~1883 |
| Clarence Kerr | Son | — | 19 | ~1891 |
| Clifford Kerr | Son | — | 29 | ~1881 |
| Norman Kerr | Son | — | 20 | ~1890 |
| David Kerr | Son | — | 23 | ~1887 |
| Raymond Robollo | Other | — | 19 | ~1891 |
| Mary Kerr | Head | — | 55 | ~1855 |
Census Appearances
1900
San Luis …
Spouse, age 44
San Luis Obispo, California · implied b. ~1856 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kerr |
| Given Name | Mary E |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Indiana |
| Birth Month | Sep |
| Birth Year | 1856 |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Indiana |
| Can Read | Yes |
| Can Write | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1910
San Luis …
Head, age 55
San Luis Obispo, California · implied b. ~1855 — 7 household members
| Surname | Kerr |
| Given Name | Mary E |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 55 |
| Marital Status | Widowed |
| Birthplace | Indiana |
| Years Married | 32 |
| Children Born | 6 |
| Children Living | 5 |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
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 Kerr across 2 US Census years (1900 and 1910) in San Luis Obispo, California, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Kerr
Head · 1910 · age 55 · b. ~1855 · California
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1910 US Federal Census — San Luis Obispo, California
Open full size
1910 US Federal Census — San Luis Obispo, California
Page Contents
26 people indexed on this census page (ia:1910:13thcensus1910po0104unit:0088)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Arthur J Ball | 35 | Head | Farmer | California |
| 52 | Iva F Ball | 25 | Wife | — | Illinois |
| 53 | Arthur J Ball | 9 | Son | — | California |
| 54 | Lawrence E Ball | 5 | Son | — | California |
| 55 | Justice G Ball | 1 | Son | — | California |
| 56 | John B Luper | 75 | Head | Farmer | Missouri |
| 57 | Mary E Luper | 67 | Wife | — | Ohio |
| 58 | W. Philip Luper | 27 | Son | Farmer | California |
| 59 | Everett E Luper | 25 | Son | Farmer | California |
| 60 | John T Luper | 38 | Son | Farmer | California |
| 61 | Grove | 25 | Head | Farmer | California |
| 62 | Dora Grove | 21 | Wife | — | California |
| 63 | Ruth M Grove | 0 | Daughter | — | California |
| 64 | Francis W Merrill | 47 | Head | Rancher | California |
| 65 | Hattie E Merrill | 38 | Wife | — | California |
| 66 | F. Leroy Merrill | 19 | Son | Rancher | California |
| 67 | Frank Jr. Merrill | 17 | Son | Laborer | California |
| 68 | Pearl M Merrill | 13 | Daughter | — | California |
| 69 | Beatrice L Merrill | 7 | Daughter | — | California |
| 70 | Mary E Kerr THIS PERSON | 55 | Head | — | Indiana |
| 71 | Clifford W Kerr | 29 | Son | Farmer | California |
| 72 | Thomas R Kerr | 27 | Son | Farmer | California |
| 73 | David Kerr | 23 | Son | Drayman | California |
| 74 | Norman Kerr | 20 | Son | Farmer | California |
| 75 | Clarence Kerr | 19 | Son | Farmer | California |
| 76 | Raymond M Robollo | 19 | Employee | Laborer | Portugal |
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)