JH
John Herman — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Suffolk, Massachusetts
Our Model Tree links this John Herman across the 1930 and 1940 US Censuses in Suffolk, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1921), then head of a 8-person household.
Age 9
b. ~1921
Male
Son
Born: Massachusetts
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Suffolk, Massachusetts |
| Surname | Herman |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | New York |
| Mother's Birthplace | Massachusetts |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Boston City |
| Est. Birth Year | ~1921 |
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 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Richard Herman | Son | — | 7 | ~1923 |
| Natalie Herman | Daughter | — | 13 | ~1917 |
| Joseph Herman | Other | — | 39 | ~1891 |
| Catherine Harris | Head | — | 62 | ~1868 |
| Amy Herman | Daughter | — | 11 | ~1919 |
| John Herman | Son | — | 9 | ~1921 |
| Martha Herman | Daughter | — | 1 | ~1929 |
| Grace Herman | Daughter | — | 40 | ~1890 |
Census Appearances
1930
Suffolk, Massachusetts
Son, age 9
Suffolk, Massachusetts · implied b. ~1921 — 8 household members
| Surname | Herman |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | New York |
| Mother's Birthplace | Massachusetts |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Son, age 19
Suffolk-County, Massachusetts · implied b. ~1921 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hermann |
| Given Name | John L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston city |
| 1935 Residence (County) | Suffolk |
| Occupation | new worker |
| Class of Worker | GW |
| Income (1939) | 110 |
| Highest Grade | H-3 |
| 1935 Residence | Same House |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
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 Herman across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Herman
Son · 1930 · age 9 · b. ~1921 · Massachusetts
★ You are viewing this record
Sibling
Richard Herman
Sibling · 1930 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Amy Herman
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Natalie Herman
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Grace Herman
Sibling · 1930 · age 40
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Martha Herman
Sibling · 1930 · age 1
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 — Suffolk, Massachusetts
Open full size
1930 US Federal Census — Suffolk, Massachusetts
Page Contents
50 people indexed on this census page (ia:1930:massachusettscensus00reel943:0486)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Thaddeus Novakowski | 35 | Head | — | Russia |
| 2 | Stone | 25 | Lodger | Nurse | Michigan |
| 3 | Margaret Thomas | 72 | Head | — | English Canada |
| 4 | John Thomas | 41 | Son | Foreman | English Canada |
| 5 | Thomas Thomas | 37 | Son | Clerk | English Canada |
| 6 | Arthur Falvey | 38 | Head | Printer | Massachusetts |
| 7 | Eleanor Falvey | 36 | Wife | — | New Hampshire |
| 8 | Eleanor Falvey | 14 | Daughter | — | Massachusetts |
| 9 | Claire Falvey | 10 | Daughter | — | Massachusetts |
| 10 | Catherine Harris | 62 | Head | — | Massachusetts |
| 11 | Joseph Herman | 39 | Son in law | Technical Engineer | New York |
| 12 | Grace Herman | 40 | Daughter | — | Massachusetts |
| 13 | Natalie Herman | 13 | Daughter | — | Massachusetts |
| 14 | Amy Herman | 11 | Daughter | — | Massachusetts |
| 15 | John Herman THIS PERSON | 9 | Son | — | Massachusetts |
| 16 | Richard Herman | 7 | Son | — | Massachusetts |
| 17 | Martha Herman | 1 | Daughter | — | Massachusetts |
| 18 | William Hennessey | 68 | Head | Watchman | Irish Free State |
| 19 | Catherine Hennessey | 60 | Wife | — | Irish Free State |
| 20 | Helen Hennessey | 27 | Daughter | Clerk | Massachusetts |
| 21 | Margaret Crotty | 30 | Sister in law | — | Massachusetts |
| 22 | Arthur Crotty | 30 | Daughter | Chauffeur | Massachusetts |
| 23 | William Hennessey | 19 | Son | Candy Maker | Massachusetts |
| 24 | John Linehan | 65 | Boarder | Longshoreman | Irish Free State |
| 25 | Alice Mudd | 70 | Head | — | Irish Free State |
| 26 | Benjamin Mudd | 34 | Son | Receiver | Massachusetts |
| 27 | Edward F. Robinson | 52 | Head | General Helper | Massachusetts |
| 28 | Mary E. Robinson | 58 | Wife | — | Maine |
| 29 | James H. Robinson | 30 | Son | Chauffeur | Massachusetts |
| 30 | Leonard Atkins | 54 | Head | Pattern Maker | Canada-English |
| 31 | Mrs. Anna O'Brien | 65 | Roomer | Housework | Irish Free State |
| 32 | Maitland Fridau | 24 | Head | Chauffeur | Massachusetts |
| 33 | Rose H. Fridau | 23 | Wife | — | Massachusetts |
| 34 | James E. Fridau | 3 | Son | — | Massachusetts |
| 35 | Virginia Fridau | 2 | Daughter | — | Massachusetts |
| 36 | David Mitchell | 48 | Head | Operator | Irish Free State |
| 37 | Mary Mitchell | 48 | Sister | — | Irish Free State |
| 38 | Sadie Mitchell | 40 | Sister | Waitress | Irish Free State |
| 39 | Mildred Connolley | 18 | Niece | Tel. Oper. | Massachusetts |
| 40 | Catherine Donavan | 70 | Head | — | Irish Free State |
| 41 | Mary Donavan | 44 | Daughter | Office Work | Irish Free State |
| 42 | Catherine Donavan | 38 | Daughter | Seamstress | Irish Free State |
| 43 | Catherine Sheehan | 40 | Head | Collector | Massachusetts |
| 44 | Mildred Sheehan | 14 | Daughter | — | Massachusetts |
| 45 | Francis Sheehan | 12 | Son | — | Massachusetts |
| 46 | Margaret Porter | 46 | Head | Housewife | Massachusetts |
| 47 | Mary Porter | 80 | Mother | Seamstress | Massachusetts |
| 48 | Eileen Porter | 18 | Daughter | Packer | Massachusetts |
| 49 | Joseph Porter | 12 | Son | — | Massachusetts |
| 50 | Mary Cronin | 65 | Head | — | Massachusetts |
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)