HJ
Herbert Johnson — 1930 US Census Record
Model Tree available1930 United States Federal Census · Allegheny, Pennsylvania
Our Model Tree links this Herbert Johnson across the 1910, 1920 and 1930 US Censuses in Allegheny, Pennsylvania (XGBoost, ~Confirmed), with identified parents Nannie & James — first a son (b.~1910), then head of a 13-person household.
Age 20
b. ~1910
Male
Son
Born: Pennsylvania
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Allegheny, Pennsylvania |
| Surname | Johnson |
| Given Name | Herbert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | Georgia |
| Additional Details | |
| Occupation | laborer |
| Industry | Foundry |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Laborer |
| Township / Ward | Pittsburgh City |
| Est. Birth Year | ~1910 |
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.
13 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Herbert | Age | Birth yr |
|---|---|---|---|---|
| Mildred Johnson | Daughter | — | 13 | ~1917 |
| Mary Johnson | Daughter | — | 8 | ~1922 |
| Elizabeth Johnson | Daughter | — | 9 | ~1921 |
| Evelyn Johnson | Daughter | — | 6 | ~1924 |
| Inez Palmer | Daughter | — | 24 | ~1906 |
| Mallon Johnson | Head | — | 43 | ~1887 |
| Martha Johnson | Other | — | 42 | ~1888 |
| Chester Palmer | Other | — | 25 | ~1905 |
| Lillian Williams | Other | — | 52 | ~1878 |
| Cudell Williams | Other | — | 53 | ~1877 |
| Edward Johnson | Son | — | 11 | ~1919 |
| Howard Johnson | Son | — | 11 | ~1919 |
| Herbert Johnson | Son | — | 20 | ~1910 |
Census Appearances
1910
Allegheny, Pennsylvania
Son, age 1
Allegheny, Pennsylvania · implied b. ~1909 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Herbert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1920
Allegheny, Pennsylvania
Son, age 12
Allegheny, Pennsylvania · implied b. ~1908 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Herbert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | Georgia |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Son, age 20
Allegheny, Pennsylvania · implied b. ~1910 — 13 household members
| Surname | Johnson |
| Given Name | Herbert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | Georgia |
| Occupation | laborer |
| Industry | Foundry |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 Herbert Johnson across 3 US Census years (1910, 1920 and 1930) in Allegheny, Pennsylvania, using XGBoost record linkage. Identified parents: mother Nannie Johnson (~0.92 confidence) and father James Johnson (~0.92 confidence) and father Milton Johnson (~0.92 confidence) and mother Martha Johnson (~0.92 confidence) and father Mallon Johnson (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Nannie Johnson
b. ~1871
Source mother
● Household
· direct · ~0.92
Father
James Johnson
b. ~1872
Source father
● Household
· direct · ~0.92
Father
Milton Johnson
b. ~1885
Source father
● Household
· direct · ~0.92
Mother
Martha Johnson
b. ~1885
Source mother
● Household
· direct · ~0.92
Father
Mallon Johnson
b. ~1887
Source father
● Household
· direct · ~0.92
This person
Anchor record
Herbert Johnson
Son · 1930 · age 20 · b. ~1910 · Pennsylvania
★ You are viewing this record
Sibling
Edward Johnson
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elizabeth Johnson
Sibling · 1930 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Evelyn Johnson
Sibling · 1930 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Inez Palmer
Sibling · 1930 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Howard Johnson
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mildred Johnson
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Johnson
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 — Allegheny, Pennsylvania
Open full size
1930 US Federal Census — Allegheny, Pennsylvania
Page Contents
47 people indexed on this census page (ia:1930:fifteenthcensus00reel1971:0963)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Abe Sigal | 50 | Head | Agent | Rumania |
| 2 | Pauline Sigal | 46 | Wife-H | None | Russia |
| 3 | Ben Sigal | 24 | Son | None | Pennsylvania |
| 4 | Herbert Sigal | 11 | Son | None | Pennsylvania |
| 5 | Frank Crosby | 49 | Head | Janitor | Virginia |
| 6 | Hattie Crosby | 42 | Wife-H | None | Virginia |
| 7 | Raymond Crosby | 18 | Son | Operator | Pennsylvania |
| 8 | Henrietta Crosby | 17 | Daughter | None | Pennsylvania |
| 9 | William Crosby | 13 | Son | None | Pennsylvania |
| 10 | Pauline Crosby | 9 | Daughter | None | Pennsylvania |
| 11 | Muriel Crosby | 7 | Daughter | None | Pennsylvania |
| 12 | Samuel Harvey | 65 | Father-in-law | Retired | Virginia |
| 13 | William Gilbert | 45 | Roomer | Laborer | Alabama |
| 14 | Sally Gilbert | 29 | Roomer | Cleaning | Alabama |
| 15 | Ulysses Nowlin | 26 | Roomer | Janitor | Virginia |
| 16 | Addie Nowlin | 21 | Roomer | None | Virginia |
| 17 | Wilrose Nowlin | 2 | Roomer | None | Pennsylvania |
| 18 | Clarence Nowlin | 1 | Roomer | None | Pennsylvania |
| 19 | Mallon Johnson | 43 | Head | Servant | South Carolina |
| 20 | Martha Johnson | 42 | Wife-H | None | Georgia |
| 21 | Herbert Johnson THIS PERSON | 20 | Son | Laborer | Pennsylvania |
| 22 | Mildred Johnson | 13 | Daughter | None | Pennsylvania |
| 23 | Howard Johnson | 11 | Son | None | Pennsylvania |
| 24 | Edward Johnson | 11 | Son | None | Pennsylvania |
| 25 | Elizabeth Johnson | 9 | Daughter | None | Pennsylvania |
| 26 | Mary Johnson | 8 | Daughter | None | Pennsylvania |
| 27 | Evelyn Johnson | 6 | Daughter | None | Pennsylvania |
| 28 | Chester Palmer | 25 | Son-in-law | Janitor | Pennsylvania |
| 29 | Inez Palmer | 24 | Daughter | None | Georgia |
| 30 | Cudell Williams | 53 | Brother-in-law | Janitor | Georgia |
| 31 | Lillian Williams | 52 | Sister-in-law | Janitress | Georgia |
| 32 | Reginald Milken | 45 | Head | Engineer | West Indies |
| 33 | Mildred Milken | 40 | Wife-H | None | West Indies |
| 34 | Eric Milken | 19 | Son | Messenger | West Indies |
| 35 | Elsie Milken | 12 | Daughter | None | Pennsylvania |
| 36 | Myrtle Milken | 10 | Daughter | None | Pennsylvania |
| 37 | Crosby Milken | 8 | Son | None | Pennsylvania |
| 38 | Agnes Milken | 7 | Daughter | None | Pennsylvania |
| 39 | Ernest Milken | 2 | Son | None | Pennsylvania |
| 40 | Tom Bertrand | 20 | Son | Messenger | West Indies |
| 41 | Norma Bertrand | 17 | Daughter-in-law | None | Pennsylvania |
| 42 | Audrey Johnston | 9 | Niece | None | Pennsylvania |
| 43 | George Boyd | None | Head | — | — |
| 47 | Isaac Means | 45 | Head | Cook | South Carolina |
| 48 | Jennie Means | 41 | Wife-H | None | Virginia |
| 49 | Virginia Means | 16 | Daughter | None | Pennsylvania |
| 50 | Isaac Jr. Means | 13 | Son | None | Pennsylvania |
Pedigree Summary
Herbert + 7 siblings
Gen 1 · 5 parents
~0.92
Max depth 4 (1900–1950 window)
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)