JH
John Herbert — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Frederick, Maryland
Our Model Tree links this John Herbert across the 1920 and 1930 US Censuses in Frederick, Maryland (XGBoost, ~Confirmed) — first a son (b.~1894), then head of a 7-person household.
Age 36
b. ~1894
Male
Son
Born: Maryland
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Frederick, Maryland |
| Surname | Herbert |
| Given Name | John O. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Maryland |
| Age at First Marriage | 23 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Additional Details | |
| Occupation | Laborer |
| Industry | Odd Jobs |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Laborer |
| Township / Ward | Jefferson District |
| Est. Birth Year | ~1894 |
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 |
|---|---|---|---|---|
| Charles Herbert | Son | — | 32 | ~1898 |
| Nancy Herbert | Spouse | — | 55 | ~1875 |
| John Herbert | Head | — | 60 | ~1870 |
| James Herbert | Daughter | — | 25 | ~1905 |
| Roger Herbert | Son | — | 31 | ~1899 |
| George Herbert | Son | — | 39 | ~1891 |
| John Herbert | Son | — | 36 | ~1894 |
Census Appearances
1920
Frederick, Maryland
Son, age 24
Frederick, Maryland · implied b. ~1896 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Herbert |
| Given Name | John O Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Farm laborer |
| Industry | farm |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Frederick, Maryland
Son, age 36
Frederick, Maryland · implied b. ~1894 — 7 household members
| Surname | Herbert |
| Given Name | John O. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Maryland |
| Age at First Marriage | 23 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Laborer |
| Industry | Odd Jobs |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
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 Herbert across 2 US Census years (1920 and 1930) in Frederick, Maryland, using XGBoost record linkage.
Show:
This person
Anchor record
John Herbert
Son · 1930 · age 36 · b. ~1894 · Maryland
★ You are viewing this record
Sibling
Roger Herbert
Sibling · 1930 · age 31
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Herbert
Sibling · 1930 · age 39
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Herbert
Sibling · 1930 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Herbert
Sibling · 1930 · age 32
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 — Frederick, Maryland
Open full size
1930 US Federal Census — Frederick, Maryland
Page Contents
50 people indexed on this census page (ia:1930:15thcensus874unit:0800)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Sallie F. Barney | 40 | Head | Manager | Maryland |
| 2 | Lillian May Barney | 10 | Daughter | — | Maryland |
| 3 | Mildred E. Crampton | 16 | Daughter | — | Maryland |
| 4 | Roger E. Engle | 21 | Son-in-law | Mechanic | Maryland |
| 5 | Helen V. Engle | 19 | Daughter | — | Maryland |
| 6 | Winfield L. Engle | 1 | Grand Son | — | Maryland |
| 7 | Clifton W. Carter | 32 | Head | Salesman | Virginia |
| 8 | Charlotte B. Carter | 30 | Wife | — | Maryland |
| 9 | Harold C. Carter | 11 | Son | — | Virginia |
| 10 | Warren H. Carter | 8 | Son | — | Virginia |
| 11 | Samuel C. Carter | 6 | Son | — | Virginia |
| 12 | Berthea L. Carter | 5 | Daughter | — | Maryland |
| 13 | Annie E. Sharpe | 60 | Mother | — | Virginia |
| 14 | Martin S. Jenkins | 34 | Head | Carpenter | Maryland |
| 15 | Alice G. Jenkins | 28 | Wife | — | Maryland |
| 16 | Margaret V. Jenkins | 11 | Daughter | — | Maryland |
| 17 | Leola E. M. Jenkins | 7 | Daughter | — | Maryland |
| 18 | Eva V. Jenkins | 1 | Daughter | — | Maryland |
| 19 | Benjamin F. Thomas | 45 | Head | Laborer | Maryland |
| 20 | Ida B. Thomas | 31 | Wife | — | Maryland |
| 21 | Irma E. Thomas | 13 | Daughter | — | Maryland |
| 22 | Florence L. Thomas | 11 | Daughter | — | Maryland |
| 23 | Susan E. Jones | 65 | Mother-in-law | — | Maryland |
| 24 | Claude Smartz | 48 | Head | Carpenter | Maryland |
| 25 | Alice Smartz | 46 | Wife | — | Maryland |
| 26 | Helen Smartz | 14 | Daughter | — | Maryland |
| 27 | Paul Smartz | 12 | Son | — | Maryland |
| 28 | Raymond Smartz | 10 | Son | — | Maryland |
| 29 | James Smartz | 7 | Son | — | Maryland |
| 30 | Ruth Smartz | 4 | Daughter | — | Maryland |
| 31 | George E. Brooks | 45 | Head | Laborer | Maryland |
| 32 | Annie V. Brooks | 43 | Wife | — | Maryland |
| 33 | Lewis R. Hale | 19 | Son | Laborer | Maryland |
| 34 | Catherine M. Hale | 15 | Step-Daughter | — | Maryland |
| 35 | Lillian S. Hale | 12 | Step-Son | — | Maryland |
| 36 | John O. Herbert | 60 | Head | Laborer | Maryland |
| 37 | Nancy C. Herbert | 55 | Wife | Domestic | Maryland |
| 38 | George H. Herbert | 39 | Son | Laborer | Maryland |
| 39 | John O. Jr. Herbert THIS PERSON | 36 | Son | Laborer | Maryland |
| 40 | Charles H. Herbert | 32 | Son | Laborer | Maryland |
| 41 | Roger C. Herbert | 31 | Son | Laborer | Maryland |
| 42 | James C. G. Herbert | 25 | Daughter | Domestic | Maryland |
| 43 | Margaret Payne | 54 | Head | — | Maryland |
| 44 | Russell H. Payne | 25 | Son | Farmer | Maryland |
| 45 | Margaret A. Payne | 22 | Daughter | — | Maryland |
| 46 | John C. Payne | 17 | Son | Farm Laborer | Maryland |
| 47 | Edgar E. Weedon | 47 | Head | Laborer | Maryland |
| 48 | Nellie A. Weedon | 32 | Wife | Domestic | Maryland |
| 49 | Oscar Weedon | 14 | Son | — | Maryland |
| 50 | Horace Weedon | 9 | Son | — | Maryland |
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)