JL
John Lunn — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this John Lunn across the 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1917), then head of a 3-person household.
Age 23
b. ~1917
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Lunn |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Occupation | cobbler |
| Industry | silk mill |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 700 |
| Highest Grade | H 4-2 |
| 1935 Residence | Same house |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Cobbler |
| Township / Ward | Boston City |
| Est. Birth Year | ~1917 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Michael Lunn | Other | — | 63 | ~1877 |
| Patrick Lunn | Head | — | 64 | ~1876 |
| John Lunn | Son | — | 23 | ~1917 |
Census Appearances
1930
Middlesex, Massachusetts
Son, age 12
Middlesex, Massachusetts · implied b. ~1918 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lunn |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Son, age 23
Suffolk-County, Massachusetts · implied b. ~1917 — 3 household members
| Surname | Lunn |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Occupation | cobbler |
| Industry | silk mill |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 700 |
| Highest Grade | H 4-2 |
| 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 Lunn across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Lunn
Son · 1940 · age 23 · b. ~1917 · Massachusetts
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Suffolk-County, Massachusetts
Open full size
1940 US Federal Census — Suffolk-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01682-00128)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Helen Cusack | 8 | Daughter | — | Massachusetts |
| 42 | Philip Cusack | 6 | Son | — | Massachusetts |
| 43 | John B Donovan | 38 | Head | Laborer | Irish Free State |
| 44 | Delia Donovan | 37 | Wife | — | Irish Free State |
| 45 | Mary Donovan | 7 | Daughter | — | Massachusetts |
| 46 | John J Donovan | 6 | Son | — | Massachusetts |
| 47 | Thomas Donovan | 4 | Son | — | Massachusetts |
| 48 | Martin Lunn | 44 | Lodger | Laborer | Irish Free State |
| 49 | Albert Cantwell | 39 | Head | Chauffeur | Massachusetts |
| 50 | Eleanor Cantwell | 36 | Wife | — | Massachusetts |
| 51 | James Cantwell | 12 | Son | — | Massachusetts |
| 52 | William Cantwell | 10 | Son | — | Massachusetts |
| 53 | Eleanor Cantwell | 6 | Daughter | — | Massachusetts |
| 54 | Burton Robinson | 23 | Head | Shipper | Maine |
| 55 | Ruth Robinson | 20 | Wife | — | Rhode Island |
| 56 | Joan E Robinson | 2 | Daughter | — | Massachusetts |
| 57 | Leo F Owen | 39 | Head | Printer | Massachusetts |
| 58 | Isabelle M Owen | 32 | Wife | — | Massachusetts |
| 59 | Leo F Owen | 2 | Son | — | Massachusetts |
| 60 | Patrick Lunn | 64 | Head | Fire Man | Irish Free State |
| 61 | John Lunn THIS PERSON | 23 | Son | Cobbler | Massachusetts |
| 62 | Michael J Lunn | 63 | Cousin | — | Irish Free State |
| 63 | Jeremiah O'Connor | 40 | Head | Police Officer | Massachusetts |
| 64 | Olga A O'Connor | 38 | Wife | — | New Jersey |
| 65 | Joseph O'Connor | 17 | Son | — | Massachusetts |
| 66 | Gerald O'Connor | 16 | Son | — | Massachusetts |
| 67 | Louise O'Connor | 14 | Daughter | — | Massachusetts |
| 68 | Frances O'Connor | 12 | Daughter | — | Massachusetts |
| 69 | Paul O'Connor | 10 | Son | — | Massachusetts |
| 70 | Lawrence L O'Connor | 5 | Daughter | — | Massachusetts |
| 71 | John O'Connor | 3 | Son | — | Massachusetts |
| 72 | Wilfred S Cupps | 46 | Head | — | Maine |
| 73 | Norman A Cupps | 24 | Son | Salesman | Massachusetts |
| 74 | Arnold A Cupps | 21 | Son | Printer | Massachusetts |
| 75 | Clara D Cupps | 19 | Daughter | — | Massachusetts |
| 76 | John A Cupps | 18 | Son | Messenger | Massachusetts |
| 77 | Maud A Dow | 66 | Mother | — | Maine |
| 78 | Mary J Cassidy | 63 | Head | — | Canada Eng |
| 79 | John E Cassidy | 27 | Son | Painter | Massachusetts |
| 80 | Stephen Cassidy | 25 | Son | Painter | Massachusetts |
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)