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William Larkin — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Delaware-County, Pennsylvania
Our Model Tree links this William Larkin across the 1930 and 1940 US Censuses in Delaware-County, Pennsylvania (XGBoost, ~Confirmed) — first a son (b.~1914), then head of a 7-person household.
Age 26
b. ~1914
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Delaware-County, Pennsylvania |
| Surname | Larkin |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Haverford Twp. |
| 1935 Residence (County) | Delaware |
| Additional Details | |
| Occupation | Clerk |
| Industry | Hotel |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 266 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Clerk |
| Township / Ward | Haverford Twp |
| Est. Birth Year | ~1914 |
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 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Helen Larkin | Daughter | — | 20 | ~1920 |
| Charles Larkin | Son | — | 28 | ~1912 |
| Joseph Larkin | Son | — | 13 | ~1927 |
| Michael Larkin | Head | — | 63 | ~1877 |
| Mary Larkin | Spouse | — | 56 | ~1884 |
| William Larkin | Son | — | 26 | ~1914 |
| John Larkin | Son | — | 31 | ~1909 |
Census Appearances
1930
Delaware, Pennsylvania
Other, age 16
Delaware, Pennsylvania · implied b. ~1914 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Larkins |
| Given Name | William |
| Relationship to Head | Brother-in-law |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Grinder |
| Industry | Textile Mill |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Delaware-County, Pennsylvania
Son, age 26
Delaware-County, Pennsylvania · implied b. ~1914 — 7 household members
| Surname | Larkin |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Haverford Twp. |
| 1935 Residence (County) | Delaware |
| Occupation | Clerk |
| Industry | Hotel |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 266 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| 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 William Larkin across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Larkin
Son · 1940 · age 26 · b. ~1914 · Pennsylvania
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Sibling
Helen Larkin
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Larkin
Sibling · 1940 · age 28
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Larkin
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Larkin
Sibling · 1940 · age 31
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
1940 US Federal Census — Delaware-County, Pennsylvania
Open full size
1940 US Federal Census — Delaware-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03492-00374)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Alfred King | 12 | Son | — | Pennsylvania |
| 2 | Michael Larkin | 63 | Head | Painter | New York |
| 3 | Mary Larkin | 56 | Wife | — | Pennsylvania |
| 4 | John Larkin | 31 | Son | Supervisor | Pennsylvania |
| 5 | Charles Larkin | 28 | Son | Clerk | Pennsylvania |
| 6 | William Larkin THIS PERSON | 26 | Son | Clerk | Pennsylvania |
| 7 | Helen Larkin | 20 | Daughter | Operat. | Pennsylvania |
| 8 | Joseph Larkin | 13 | Son | — | Pennsylvania |
| 9 | George Mcconaghy | 48 | Head | Carpenter | Pennsylvania |
| 10 | Elizabeth Mcconaghy | 46 | Wife | — | Pennsylvania |
| 11 | Mabel Mcconaghy | 21 | Daughter | Secretary | Pennsylvania |
| 12 | Arthur Graham | 47 | Head | Teacher | Pennsylvania |
| 13 | Ruth Graham | 51 | Sister | Bookkeeper | Pennsylvania |
| 14 | Jean Howell | 53 | Sister | — | New York |
| 15 | George R. Schererhorn | 53 | Head | Watchman | New York |
| 16 | Anne Schererhorn | 40 | Wife | Clerk | Pennsylvania |
| 17 | Clara Schererhorn | 59 | Wife | — | Pennsylvania |
| 18 | Gail Schererhorn | 13 | Daughter | — | Pennsylvania |
| 19 | Mathilda Dresser | 71 | Mother-in-law | — | Pennsylvania |
| 20 | William Wolf | 31 | Head | Copy Reader | Pennsylvania |
| 21 | Mary Wolf | 33 | Wife | — | Pennsylvania |
| 22 | Katharine Wolf | 7 | Daughter | — | Pennsylvania |
| 23 | Ann Wolf | 6 | Daughter | — | Pennsylvania |
| 24 | Charles Fellar | 53 | Head | Plumber | Pennsylvania |
| 25 | Sarah Fellar | 41 | Wife | — | Pennsylvania |
| 26 | Charles Fellar | 14 | Son | — | Pennsylvania |
| 27 | Margaret Fellar | 12 | Daughter | — | Pennsylvania |
| 28 | Howard Fellar | 5 | Son | — | Pennsylvania |
| 29 | Frances Lewis | 67 | Head | Nurse | Pennsylvania |
| 30 | Albert Ritter | 66 | Head | Accountant | Pennsylvania |
| 31 | Nellie Ritter | 53 | Wife | — | Pennsylvania |
| 32 | Myrtle Ritter | 15 | Daughter | — | Pennsylvania |
| 33 | Virginia Ritter | 13 | Daughter | — | Pennsylvania |
| 34 | Samuel Hanlon | 57 | Head | Farmer | Illinois |
| 35 | Elizabeth Hanlon | 58 | Wife | — | Pennsylvania |
| 36 | Robert Hanlon | 15 | Son | — | Pennsylvania |
| 37 | Bertha Chadwick | 60 | Sister | Clerk | Pennsylvania |
| 38 | Joseph Chadwick | 32 | Nephew | Clerk | Pennsylvania |
| 39 | Flunice Storey | 41 | Sister | Clerk | Pennsylvania |
| 40 | William Head Houghton | 37 | Head | Inspector | New York |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 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)