MK
Mary Kerr — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Charleston, South Carolina
Our Model Tree links this Mary Kerr across the 1930 and 1940 US Censuses in Charleston, South Carolina (XGBoost, ~Confirmed) — first a daughter (b.~1930), then head of a 6-person household.
Age 0
b. ~1930
Female
Daughter
Born: South Carolina
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Charleston, South Carolina |
| Surname | Kerr |
| Given Name | Mary L. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | South Carolina |
| Father's Birthplace | Georgia |
| Mother's Birthplace | South Carolina |
| Additional Details | |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
| Township / Ward | St Michael And St Phillip Township |
| Est. Birth Year | ~1930 |
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 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Dorothy Kerr | Daughter | — | 8 | ~1922 |
| Elizabeth Kerr | Daughter | — | 2 | ~1928 |
| James Kerr | Son | — | 7 | ~1923 |
| Mary Kerr | Daughter | — | ~1930 | |
| Marie Kerr | Spouse | — | 30 | ~1900 |
| Ernest Kerr | Head | — | 34 | ~1896 |
Census Appearances
1930
Charleston, South …
Daughter, age
Charleston, South Carolina · implied b. ~1930 — 6 household members
| Surname | Kerr |
| Given Name | Mary L. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | South Carolina |
| Father's Birthplace | Georgia |
| Mother's Birthplace | South Carolina |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
1940
Charleston-County, South …
Daughter, age 10
Charleston-County, South Carolina · implied b. ~1930 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Karr |
| Given Name | Mary L. |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | South Carolina |
| 1935 Residence (City) | Charleston |
| 1935 Residence (County) | Charleston |
| Highest Grade | No 3 |
| 1935 Residence | South Carolina |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
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 (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Kerr
Daughter · 1930 · age 0 · b. ~1930 · South Carolina
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Sibling
Elizabeth Kerr
Sibling · 1930 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Kerr
Sibling · 1930 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Kerr
Sibling · 1930 · age 8
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
1930 US Federal Census — Charleston, South Carolina
Open full size
1930 US Federal Census — Charleston, South Carolina
Page Contents
50 people indexed on this census page (ia:1930:15thcensus2190unit:0945)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Earl J. Phillips | 34 | Head | Clerk | South Carolina |
| 2 | Lucile Phillips | 30 | Wife | — | New York |
| 3 | Earl J. Jr. Phillips | 1 | Son | — | South Carolina |
| 4 | John F. Lucas | 40 | Head | Machinist | South Carolina |
| 5 | Bertha Lucas | 34 | Wife | — | South Carolina |
| 6 | Dorothy R. Lucas | 17 | Daughter | — | South Carolina |
| 7 | Margaret A. Lucas | 15 | Daughter | — | South Carolina |
| 8 | Ernest Kerr | 34 | Head | Carpenter | Georgia |
| 9 | Marie E. Kerr | 30 | Wife | — | South Carolina |
| 10 | Dorothy L. Kerr | 8 | Daughter | — | South Carolina |
| 11 | James H. Jr. Kerr | 7 | Son | — | South Carolina |
| 12 | Elizabeth J. Kerr | 2 | Daughter | — | South Carolina |
| 13 | Mary L. Kerr THIS PERSON | 0 | Daughter | — | South Carolina |
| 14 | Joseph Henderson | 45 | Head | Boilermaker | Georgia |
| 15 | Mary S. Henderson | 41 | Wife | — | Georgia |
| 16 | Betty C. Wuckworth | 32 | Head | — | New York |
| 17 | Adam A. Wiles | 34 | Head | Foreman | South Carolina |
| 18 | Lottie L. Wiles | 21 | Wife | — | South Carolina |
| 19 | Charles A. Wiles | 2 | Son | — | South Carolina |
| 20 | Ruby G. Gamble | 17 | Sister-in-law | — | South Carolina |
| 21 | W. Grooms | 36 | Boarder | Phosphate | South Carolina |
| 22 | Stephen L. Joy | 29 | Head | Watchman | Texas |
| 23 | Helen M. Joy | 23 | Wife | — | South Carolina |
| 24 | Mary F. Joy | 6 | Daughter | — | South Carolina |
| 25 | Stephen L. Jr. Joy | 4 | Son | — | South Carolina |
| 26 | Buddy Joy | 2 | Son | — | South Carolina |
| 27 | Dada Joy | 0 | Daughter | — | South Carolina |
| 28 | Elias M. Blanchard | 41 | Head | Cabinet Maker | South Carolina |
| 29 | Gertrude E. Blanchard | 39 | Wife | — | South Carolina |
| 30 | Miriam G. Blanchard | 12 | Daughter | — | Georgia |
| 31 | Joseph G. Blanchard | 7 | Son | — | South Carolina |
| 32 | Minerva G. Blanchard | 3 | Son | — | Florida |
| 33 | Chas. Z. Law | 60 | Head | Carpenter | South Carolina |
| 34 | Daisy Law | 40 | Wife | — | South Carolina |
| 35 | John M. Cantley | 57 | Head | Painter | South Carolina |
| 36 | Alice R. Cantley | 45 | Wife | — | South Carolina |
| 37 | Annie M. Cantley | 14 | Daughter | — | South Carolina |
| 38 | Virgie E. Cantley | 12 | Daughter | — | South Carolina |
| 39 | Robert Metalbon | 60 | Head | Cabinet Maker | Georgia |
| 40 | Ada C. Metalbon | 55 | Wife | — | Georgia |
| 41 | Denton R. Metalbon | 23 | Son | Type Setter | Georgia |
| 42 | Arthur L. Bankers | 22 | Head | Fireman | Georgia |
| 43 | Myra L. Bankers | 23 | Wife | — | Georgia |
| 44 | Betty L. Bankers | 0 | Daughter | — | Georgia |
| 45 | John Lee | 34 | Head | Retail Merchant | Illinois |
| 46 | Clara G. Lee | 37 | Wife | — | Illinois |
| 47 | Paul E. Lee | 15 | Son | Delivery Boy | South Carolina |
| 48 | Jesse Jr. Lee | 11 | Son | — | South Carolina |
| 49 | Robert L. Lee | 5 | Son | — | Virginia |
| 50 | Charles L. Lee | 0 | Son | — | South Carolina |
Related Census Records
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)