JL
John Larkin — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Baltimore, Maryland
Our Model Tree links this John Larkin across the 1930 and 1940 US Censuses in Baltimore, Maryland (XGBoost, ~Confirmed) — first a son (b.~1929), then head of a 12-person household.
Age 1
b. ~1929
Male
Son
Born: Maryland
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Baltimore, Maryland |
| Surname | Larkin |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | District Columbia |
| Additional Details | |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Est. Birth Year | ~1929 |
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.
12 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Dorothy Larkin | Daughter | — | ~1930 | |
| Eleanor Larkin | Daughter | — | 4 | ~1926 |
| Catherine Larkin | Daughter | — | 15 | ~1915 |
| Elizabeth Larkin | Daughter | — | 15 | ~1915 |
| William Larkin | Head | — | 39 | ~1891 |
| James Larkin | Son | — | 7 | ~1923 |
| Thomas Larkin | Son | — | 5 | ~1925 |
| Roland Larkin | Son | — | 18 | ~1912 |
| Robert Larkin | Son | — | 5 | ~1925 |
| John Larkin | Son | — | 1 | ~1929 |
| William Larkin | Son | — | 9 | ~1921 |
| Hester Larkin | Spouse | — | 38 | ~1892 |
Census Appearances
1930
Baltimore, Maryland
Son, age 1
Baltimore, Maryland · implied b. ~1929 — 12 household members
| Surname | Larkin |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | District Columbia |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-City-County, Maryland
Other, age 12
Baltimore-City-County, Maryland · implied b. ~1928 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Larkene |
| Given Name | John |
| Relationship to Head | Grandson |
| Sex | M |
| Color / Race | Black |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Highest Grade | No 3 |
| 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 Larkin across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Larkin
Son · 1930 · age 1 · b. ~1929 · Maryland
★ You are viewing this record
Sibling
Eleanor Larkin
Sibling · 1930 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Larkin
Sibling · 1930 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Larkin
Sibling · 1930 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elizabeth Larkin
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Larkin
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Larkin
Sibling · 1930 · age
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Larkin
Sibling · 1930 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Larkin
Sibling · 1930 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Roland Larkin
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 — Baltimore, Maryland
Open full size
1930 US Federal Census — Baltimore, Maryland
Page Contents
50 people indexed on this census page (ia:1930:15thcensus859unit:0580)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | William J Larkin | 39 | Head | Salesman | Maryland |
| 2 | Hester Larkin | 38 | Wife | — | District Columbia |
| 3 | Roland Larkin | 18 | Son | — | Maryland |
| 4 | Catherine Larkin | 15 | Daughter | Asst Manager | Maryland |
| 5 | Elizabeth Larkin | 15 | Daughter | — | Maryland |
| 6 | William Larkin | 9 | Son | — | Maryland |
| 7 | James Larkin | 7 | Son | — | Maryland |
| 8 | Robert Larkin | 5 | Son | — | Maryland |
| 9 | Thomas Larkin | 5 | Son | — | Maryland |
| 10 | Eleanor Larkin | 4 | Daughter | — | Maryland |
| 11 | John Larkin THIS PERSON | 1 | Son | — | Maryland |
| 12 | Dorothy Larkin | 0 | Daughter | — | Maryland |
| 13 | Morgan N Evans | 40 | Head | Carpenter | Maryland |
| 14 | Adna H Evans | 34 | Wife | — | Maryland |
| 15 | Robert Evans | 11 | Son | — | Maryland |
| 16 | Rosemary Evans | 4 | Daughter | — | Maryland |
| 17 | Mildred Evans | 1 | Daughter | — | Maryland |
| 18 | William D Evans | 62 | Father-in-law | Stationary Engineer | Maryland |
| 19 | Zechariah Evans | 25 | Brother-in-law | Carpet Layer | Maryland |
| 20 | George A Walbourn | 65 | Head | Pensioned | District Columbia |
| 21 | Julia M Walbourn | 58 | Wife | — | Virginia |
| 22 | George G Walbourn | 27 | Son | Salesman | Maryland |
| 23 | Florence G Walbourn | 27 | Daughter-in-law | — | Maryland |
| 24 | Henry M Walbourn | 22 | Son | — | Maryland |
| 25 | George G Walbourn | 2 | Grandson | — | Maryland |
| 26 | Lealine D Crockett | 76 | Mother-in-law | — | Virginia |
| 27 | Thomas A Spicknall | 39 | Head | Unknown | Unknown |
| 28 | Arrosa Spicknall | 39 | Wife | Unknown | Unknown |
| 29 | Wilson Spicknall | None | Son | Unknown | Unknown |
| 30 | Edwin J Spicknall | None | Son | Unknown | Unknown |
| 31 | John Metzer | None | Father-in-law | Unknown | Unknown |
| 32 | Taqueille Humphries | 39 | Head | Engineer | Virginia |
| 33 | Bell Humphries | 39 | Wife | Saleswoman | Maryland |
| 34 | Garland Humphries | 12 | Son | — | Virginia |
| 35 | Lora Humphries | 8 | Daughter | — | Virginia |
| 36 | Robert W Barry | 59 | Head | Salesman | Maryland |
| 37 | Margaret Barry | 55 | Wife | — | Maryland |
| 38 | Mabelle Barry | 9 | Daughter | — | Maryland |
| 39 | Bernice Barry | 6 | Daughter | — | Maryland |
| 40 | Robert Barry | 1 | Son | — | Maryland |
| 41 | George P Stein | 64 | Head | Salesman | Maryland |
| 42 | Mary E Stein | 58 | Wife | — | Maryland |
| 43 | Greenbury T Humphrey | 60 | Head | Inspector | Maryland |
| 44 | Florence V Humphrey | 57 | Wife | — | Maryland |
| 45 | Roger Humphrey | 20 | Son | Civil Engineer | Maryland |
| 46 | Lester Humphrey | 28 | Son | Salesman | Maryland |
| 47 | Luther Gerwig | 38 | Head | Builder | Maryland |
| 48 | Lillie Gerwig | 39 | Wife | — | Maryland |
| 49 | Doris Gerwig | 15 | Daughter | — | Maryland |
| 50 | John Gerwig | 11 | Son | — | 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)