MC
Mary Cobb — 1910 US Census Record
Linked across censuses1910 United States Federal Census · St Johns, Florida
Our Model Tree links this Mary Cobb across the 1910 and 1920 US Censuses in St Johns, Florida (XGBoost, ~Confirmed) — first a daughter (b.~1903), then head of a 8-person household.
Age 7
b. ~1903
Female
Daughter
Born: South Carolina
Single
1910 Census Record Details
| Census Year | 1910 |
| Location | St Johns, Florida |
| Surname | Cobb |
| Given Name | Mary Bird |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 7 |
| Marital Status | Single |
| Birthplace | South Carolina |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Additional Details | |
| Can Read | No |
| Can Write | No |
| Speaks English | English |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
| Township / Ward | Precinct 6 |
| Est. Birth Year | ~1903 |
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 |
|---|---|---|---|---|
| Carrie Cobb | Spouse | — | 29 | ~1881 |
| Ruthie Cobb | Daughter | — | 12 | ~1898 |
| Will Cobb | Son | — | 4 | ~1906 |
| Mary Cobb | Daughter | — | 7 | ~1903 |
| Hattie Cobb | Daughter | — | 10 | ~1900 |
| Jacob Cobb | Head | — | 35 | ~1875 |
| Margaret Cobb | Daughter | — | 9 | ~1901 |
| Emmalee Cobb | Daughter | — | 2 | ~1908 |
Census Appearances
1910
St Johns, …
Daughter, age 7
St Johns, Florida · implied b. ~1903 — 8 household members
| Surname | Cobb |
| Given Name | Mary Bird |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 7 |
| Marital Status | Single |
| Birthplace | South Carolina |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Can Read | No |
| Can Write | No |
| Speaks English | English |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
1920
St Johns, …
Daughter, age 16
St Johns, Florida · implied b. ~1904 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cobbs |
| Given Name | Marguerite |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 16 |
| Marital Status | Single |
| Birthplace | South Carolina |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| 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 Cobb across 2 US Census years (1910 and 1920) in St Johns, Florida, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Cobb
Daughter · 1910 · age 7 · b. ~1903 · Florida
★ You are viewing this record
Sibling
Hattie Cobb
Sibling · 1910 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Will Cobb
Sibling · 1910 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Emmalee Cobb
Sibling · 1910 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Cobb
Sibling · 1910 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruthie Cobb
Sibling · 1910 · age 12
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
1910 US Federal Census — St Johns, Florida
Open full size
1910 US Federal Census — St Johns, Florida
Page Contents
50 people indexed on this census page (ia:1910:13thcensus1910po167unit:0639)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Roger L Bothwell | 39 | Head | Farmer | Georgia |
| 52 | Alice L Bothwell | 32 | Wife | — | Georgia |
| 53 | Roger L Bothwell | 9 | Son | — | Georgia |
| 54 | Alice H Bothwell | 1 | Daughter | — | Georgia |
| 55 | Jasper Piedlock | 50 | Hired man | Laborer | Georgia |
| 56 | Susan Piedlock | 50 | Cook | Cook | Georgia |
| 57 | Henry Bull | 28 | Hired man | Laborer | Georgia |
| 58 | James Nolan | 57 | Head | Farmer | Georgia |
| 59 | Nettie Nolan | 25 | Wife | Washing | Georgia |
| 60 | Ermalee Nolan | 8 | Daughter | — | Florida |
| 61 | Charles Nolan | 6 | Son | — | Florida |
| 62 | Philip Solana | 58 | Head | Farmer | Florida |
| 63 | Dora E Solana | 33 | Wife | — | Florida |
| 64 | Isador | 46 | Brother in law | — | Florida |
| 65 | Charles Yelvington | 27 | Head | Farmer | Florida |
| 66 | Mary Yelvington | 20 | Wife | — | Florida |
| 67 | Carl Yelvington | 2 | Son | — | Florida |
| 68 | Edward Yelvington | 1 | Son | — | Florida |
| 69 | James Dineen | 28 | Hired man | Laborer | Ireland |
| 70 | Arthur H Masters | 26 | Head | Farmer | Florida |
| 71 | Rosher A Masters | 22 | Wife | — | South Carolina |
| 72 | Morris L Grimes | 31 | Head | Farmer | Georgia |
| 73 | Bertha M Grimes | 23 | Wife | — | South Carolina |
| 74 | Beulah M Grimes | 3 | Daughter | — | South Carolina |
| 75 | Mildred B Grimes | 1 | Daughter | — | Florida |
| 76 | Alver Cato | 20 | Hired man | Laborer | South Carolina |
| 77 | Hanson Grooms | 20 | Hired man | Laborer | South Carolina |
| 78 | Hanson Grooms | 20 | Hired man | Laborer | South Carolina |
| 79 | Jacob M Cobb | 35 | Head | — | South Carolina |
| 80 | Carrie Cobb | 29 | Wife | — | South Carolina |
| 81 | Ruthie Cobb | 12 | Daughter | — | South Carolina |
| 82 | Hattie Cobb | 10 | Daughter | — | South Carolina |
| 83 | Margaret Cobb | 9 | Daughter | — | South Carolina |
| 84 | Mary Bird Cobb THIS PERSON | 7 | Daughter | — | South Carolina |
| 85 | Will Cobb | 4 | Son | — | Florida |
| 86 | Emmalee Cobb | 2 | Daughter | — | Florida |
| 87 | Londa Bird | 35 | Head | Laborer | South Carolina |
| 88 | Ella Bird | 25 | Wife | — | Georgia |
| 89 | Moses Cooper | 40 | Head | Laborer | South Carolina |
| 90 | Elda Cooper | 20 | Wife | — | Florida |
| 91 | Lanscut Utsey | 23 | Head | Woodsman | South Carolina |
| 92 | Freddie M Utsey | 19 | Wife | — | South Carolina |
| 93 | Duose Utsey | 4 | Son | — | South Carolina |
| 94 | James Jackson | 35 | Head | Laborer | Florida |
| 95 | Lula Jackson | 43 | Wife | Cook | Georgia |
| 96 | William J Beach | 36 | Head | Operator | South Carolina |
| 97 | Hettie R Beach | 30 | Wife | — | South Carolina |
| 98 | Isabelle Beach | 10 | Daughter | — | South Carolina |
| 99 | Bessie R Beach | 9 | Daughter | — | South Carolina |
| 100 | Palmer Beach | 7 | Son | — | South Carolina |
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)