JF
John Frederick — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Calhoun, South Carolina
Our Model Tree links this John Frederick across the 1920 and 1930 US Censuses in Calhoun, South Carolina (XGBoost, ~Confirmed) — first a son (b.~1908), then head of a 7-person household.
Age 22
b. ~1908
Male
Son
Born: South Carolina
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Calhoun, South Carolina |
| Surname | Frederick |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 22 |
| Marital Status | Single |
| Birthplace | South Carolina |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
| Township / Ward | Lyons Township |
| Est. Birth Year | ~1908 |
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 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Andy Frederick | Head | — | 41 | ~1889 |
| James Frederick | Son | — | 11 | ~1919 |
| Sam Frederick | Son | — | 18 | ~1912 |
| Willie Frederick | Son | — | 10 | ~1920 |
| John Frederick | Son | — | 14 | ~1916 |
| Thomas Frederick | Son | — | 16 | ~1914 |
| John Frederick | Son | — | 22 | ~1908 |
Census Appearances
1920
Calhoun, South …
Son, age 10
Calhoun, South Carolina · implied b. ~1910 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Frederick |
| Given Name | John G Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 10 |
| 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 |
1930
Calhoun, South …
Son, age 22
Calhoun, South Carolina · implied b. ~1908 — 7 household members
| Surname | Frederick |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 22 |
| Marital Status | Single |
| Birthplace | South Carolina |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Can Read/Write | 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 John Frederick across 2 US Census years (1920 and 1930) in Calhoun, South Carolina, using XGBoost record linkage.
Show:
This person
Anchor record
John Frederick
Son · 1930 · age 22 · b. ~1908 · South Carolina
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Sibling
Thomas Frederick
Sibling · 1930 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Frederick
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Willie Frederick
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Frederick
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Sam Frederick
Sibling · 1930 · age 18
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 — Calhoun, South Carolina
Open full size
1930 US Federal Census — Calhoun, South Carolina
Page Contents
50 people indexed on this census page (ia:1930:15thcensus2189unit:0119)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | James B. Zeigler | 27 | Head | Farmer | South Carolina |
| 52 | Luzianne Zeigler | 25 | Wife-H | — | South Carolina |
| 53 | David Zeigler | 22 | Son | Laborer | South Carolina |
| 54 | Mary Zeigler | 19 | Daughter | — | South Carolina |
| 55 | Philomena Zeigler | 16 | Daughter | — | South Carolina |
| 56 | Eveline Zeigler | 14 | Daughter | — | South Carolina |
| 57 | Minnie L. Zeigler | 12 | Daughter | — | South Carolina |
| 58 | Ernest Zeigler | 11 | Son | — | South Carolina |
| 59 | Jim Barkinson | 35 | Head | Farmer | South Carolina |
| 60 | Rebecca Barkinson | 34 | Wife-H | — | South Carolina |
| 61 | Corrie Barkinson | 14 | Daughter | — | South Carolina |
| 62 | Myrtice Barkinson | 13 | Daughter | — | South Carolina |
| 63 | Robert Barkinson | 11 | Son | — | South Carolina |
| 64 | Rufus Brown | 28 | Head | — | South Carolina |
| 65 | Rosa Brown | 22 | Wife-H | — | South Carolina |
| 66 | Hazel Brown | 15 | Daughter | — | South Carolina |
| 67 | Andy Frederick | 41 | Head | Farmer | South Carolina |
| 68 | Sam Frederick | 18 | Son | Laborer | South Carolina |
| 69 | Thomas Frederick | 16 | Son | Laborer | South Carolina |
| 70 | John Frederick | 14 | Son | Laborer | South Carolina |
| 71 | James Frederick | 11 | Son | Laborer | South Carolina |
| 72 | Willie M. Frederick | 10 | Son | — | South Carolina |
| 73 | John Frederick THIS PERSON | 22 | Son | — | South Carolina |
| 74 | Arthur Shuler | 34 | Head | Farmer | South Carolina |
| 75 | Harriet Shuler | 33 | Wife-H | Laborer | South Carolina |
| 76 | Mamie Shuler | 12 | Daughter | Laborer | South Carolina |
| 77 | Adam Shuler | 12 | Son | Laborer | South Carolina |
| 78 | Arthur Shuler | 11 | Son | — | South Carolina |
| 79 | William Shuler | 9 | Son | — | South Carolina |
| 80 | Ernestine Shuler | 8 | Daughter | — | South Carolina |
| 81 | Simon Shuler | 7 | Son | — | South Carolina |
| 82 | Catherine Shuler | 5 | Daughter | — | South Carolina |
| 83 | James Shuler | 2 | Son | — | South Carolina |
| 84 | Richard Brown | 50 | Head | Farmer | South Carolina |
| 85 | Lou Brown | 40 | Wife-H | — | South Carolina |
| 86 | William Brown | 17 | Son | Laborer | South Carolina |
| 87 | Maggie Brown | 15 | Daughter | — | South Carolina |
| 88 | Jack Jackson | 51 | Head | Farmer | South Carolina |
| 89 | Sarah Jackson | 50 | Sister | Laborer | South Carolina |
| 90 | Edward Green | 58 | Head | Farmer | South Carolina |
| 91 | James Green | 22 | Brother | Laborer | South Carolina |
| 92 | Lucius Bowman | 56 | Head | Farmer | South Carolina |
| 93 | Annie Bowman | 54 | Wife-H | Laborer | South Carolina |
| 94 | Lillie M. Bowman | 20 | Daughter | Laborer | South Carolina |
| 95 | Mamie Bowman | 18 | Daughter | Laborer | South Carolina |
| 96 | Annie B. Bowman | 16 | Daughter | Laborer | South Carolina |
| 97 | Frederick Bowman | 14 | Son | Laborer | South Carolina |
| 98 | Henry Preston | 48 | Head | Farmer | South Carolina |
| 99 | John Preston | 22 | Son | Laborer | South Carolina |
| 100 | Frank Preston | 18 | Son | Laborer | South Carolina |
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)