JH
John Hardin — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Baltimore, Maryland
Our Model Tree links this John Hardin across the 1930 and 1940 US Censuses in Baltimore, Maryland (XGBoost, ~Confirmed) — first a head (b.~1903), then head of a 5-person household.
Age 27
b. ~1903
Male
Head
Born: Maryland
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Baltimore, Maryland |
| Surname | Hardin |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Maryland |
| Age at First Marriage | 21 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Additional Details | |
| Occupation | Chauffeur |
| Industry | Sheet Metal |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 20 |
| Veteran | No |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Chauffeur |
| Township / Ward | Baltimore City |
| 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.
5 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Earl Hardin | Son | — | 1 | ~1929 |
| Alice Hardin | Spouse | — | 22 | ~1908 |
| Merle Hardin | Son | — | 5 | ~1925 |
| Christina Hardin | Daughter | — | ~1930 | |
| John Hardin | Head | — | 27 | ~1903 |
Census Appearances
1930
Baltimore, Maryland
Head, age 27
Baltimore, Maryland · implied b. ~1903 — 5 household members
| Surname | Hardin |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Maryland |
| Age at First Marriage | 21 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Chauffeur |
| Industry | Sheet Metal |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 20 |
| Veteran | No |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-City-County, Maryland
Head, age 37
Baltimore-City-County, Maryland · implied b. ~1903 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hardingham |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Occupation | Shop Inspector |
| Industry | Transit Co. |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1600 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| 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 Hardin across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Hardin
Head · 1930 · age 27 · b. ~1903 · Maryland
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Baltimore, Maryland
Open full size
1930 US Federal Census — Baltimore, Maryland
Page Contents
50 people indexed on this census page (ia:1930:15thcensus864unit:0893)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Mamie Martin | 3 | Daughter | — | Maryland |
| 52 | Earl Martin | 1 | Son | — | Maryland |
| 53 | Sarah Finnell | 58 | Head | Seamstress | Maryland |
| 54 | Norman F. Finnell | 20 | Son | Operator | Maryland |
| 55 | Julius G. Tucker | 43 | Head | Laborer | Maryland |
| 56 | Agnes Tucker | 15 | Daughter | — | Maryland |
| 57 | Chas. Fritz | 19 | Head | Laborer | Maryland |
| 58 | Mabel Fritz | 17 | Wife | — | Maryland |
| 59 | Minnie Tucker | 11 | Daughter | — | Maryland |
| 60 | James Tucker | 9 | Son | — | Maryland |
| 61 | John Tucker | 7 | Son | — | Maryland |
| 62 | Victor Carlile | 21 | Head | Pressfeeder | Maryland |
| 63 | Evelyn Carlile | 21 | Wife | — | Maryland |
| 64 | Louis Carlile | 1 | Son | — | Maryland |
| 65 | Myrtle Leitch | 22 | Head | Inspector | Maryland |
| 66 | Myrtle Leitch | 5 | Daughter | — | Maryland |
| 67 | Audrey Leitch | 3 | Daughter | — | Maryland |
| 68 | Alice Leitch | 2 | Daughter | — | Maryland |
| 69 | Anna Dorney | 49 | Head | Cashier | Austria |
| 70 | Raymond Dorney | 20 | Son | Stock Clerk | Maryland |
| 71 | — | None | — | — | — |
| 72 | John Fitzgerald | 24 | Head | Laborer | Virginia |
| 73 | Irene Fitzgerald | 21 | Wife | — | Maryland |
| 74 | Ruth Fitzgerald | 0 | Daughter | — | Maryland |
| 75 | Luke Krasmeier | 26 | Head | Salesman | Maryland |
| 76 | Virginia Krasmeier | 24 | Wife | — | Maryland |
| 77 | Catherine Krasmeier | 5 | Daughter | — | Maryland |
| 78 | Agnes Krasmeier | 3 | Daughter | — | Maryland |
| 79 | Helen Paar | 31 | Head | Saleslady | Maryland |
| 80 | Geo. Huber | 28 | Brother-in-law | Salesman | Maryland |
| 81 | Ida Huber | 24 | Wife | — | Maryland |
| 82 | Katherine Fishback | 45 | Head | — | Maryland |
| 83 | Naomi Fishback | 17 | Daughter | Typist | Maryland |
| 84 | Harry G. Long | 31 | Head | Foreman | W. Virginia |
| 85 | Margaret L. Long | 27 | Wife | — | Virginia |
| 86 | Terrence Long | 7 | Son | — | Maryland |
| 87 | Wm. F. Akrol | 52 | Head | Foreman | Maryland |
| 88 | Luana Akrol | 50 | Wife | — | Maryland |
| 89 | Chas. Hofstale | 26 | Son | Soldier | Maryland |
| 90 | John Hardin THIS PERSON | 27 | Head | Chauffeur | Maryland |
| 91 | Alice Hardin | 22 | Wife | — | Maryland |
| 92 | Merle F. Hardin | 5 | Son | — | Maryland |
| 93 | Earl Hardin | 1 | Son | — | Maryland |
| 94 | Christina Hardin | 0 | Daughter | — | Maryland |
| 95 | Myrtle Kennedy | 72 | Head | — | New York |
| 96 | John E. Kestler | 36 | Head | Foreman | Maryland |
| 97 | Dorothy Kestler | 33 | Wife | — | New York |
| 98 | Dorothy Kestler | 11 | Daughter | — | New Jersey |
| 99 | Edward Kestler | 10 | Son | — | Maryland |
| 100 | Leona Kestler | 8 | Daughter | — | Maryland |
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)