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John Mulligan — 1940 US Census Record
Model Tree available1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this John Mulligan across the 1920, 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed), with identified parents James & Ann — first a son (b.~1919), then head of a 6-person household.
Age 21
b. ~1919
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Mulligan |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Occupation | Drug Clerk |
| Industry | Drug Store |
| Class of Worker | PW |
| Hours Worked | 22 |
| Income (1939) | 182 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Drug Clerk |
| Township / Ward | Boston City |
| Est. Birth Year | ~1919 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Mildred Mulligan | Daughter | — | 26 | ~1914 |
| John Mulligan | Son | — | 21 | ~1919 |
| Robert Mulligan | Son | — | 24 | ~1916 |
| Ann Mulligan | Spouse | — | 62 | ~1878 |
| James Mulligan | Head | — | 65 | ~1875 |
| James Mulligan | Son | — | 28 | ~1912 |
Census Appearances
1920
Suffolk, Massachusetts
Son, age 1
Suffolk, Massachusetts · implied b. ~1919 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Milligan |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Connecticut |
| Mother's Birthplace | Ireland |
| Can Read | No |
| Can Write | No |
| Speaks English | No |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Suffolk, Massachusetts
Son, age 11
Suffolk, Massachusetts · implied b. ~1919 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Milligan |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Age at First Marriage | none |
| Father's Birthplace | Connecticut |
| Mother's Birthplace | Irish Free State |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Son, age 21
Suffolk-County, Massachusetts · implied b. ~1919 — 6 household members
| Surname | Mulligan |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Occupation | Drug Clerk |
| Industry | Drug Store |
| Class of Worker | PW |
| Hours Worked | 22 |
| Income (1939) | 182 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| 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 Mulligan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father James Mulligan (~0.92 confidence) and mother Ann Mulligan (~0.92 confidence) and mother Annie Milligan (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Mulligan
b. ~1875
Source father
● Household
· direct · ~0.92
Mother
Ann Mulligan
b. ~1878
Source mother
● Household
· direct · ~0.92
Mother
Annie Milligan
b. ~1881
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Mulligan
Son · 1940 · age 21 · b. ~1919 · Massachusetts
★ You are viewing this record
Sibling
James Mulligan
Sibling · 1940 · age 28
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mildred Mulligan
Sibling · 1940 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Mulligan
Sibling · 1940 · age 24
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 — 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-t0627-01664-00426)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John Gregorio | 32 | Head | Glazier | Massachusetts |
| 2 | Gertrude Gregorio | 27 | Wife | — | Massachusetts |
| 3 | Jacqueline Gregorio | 6 | Daughter | — | Massachusetts |
| 4 | John Gregorio | 5 | Son | — | Massachusetts |
| 5 | Lewis Coffey | 67 | Head | — | Portugal |
| 6 | Lewis Coffey | 37 | Son | Laborer | Massachusetts |
| 7 | Lewis Coffey | 13 | Grand Son | — | Massachusetts |
| 8 | John Cantwell | 48 | Head | Ironworker | Canada-English |
| 9 | Bridget Cantwell | 48 | Wife | — | Canada-English |
| 10 | Thomas Cantwell | 24 | Son | Printer | Canada-English |
| 11 | Edward Cantwell | 21 | Son | Messenger Boy | Canada-English |
| 12 | James Cantwell | 16 | Son | — | Massachusetts |
| 13 | Francis Cantwell | 14 | Son | — | Massachusetts |
| 14 | Mark Cantwell | 11 | Daughter | — | Massachusetts |
| 15 | Elizabeth Cantwell | 4 | Daughter | — | Massachusetts |
| 16 | James King | 63 | Head | Laborer | Eire |
| 17 | John Molony | 75 | Head | Laborer | Poland |
| 18 | Mary Molony | 75 | Wife | — | Poland |
| 19 | William Kort | 55 | Head | Watchman | Germany |
| 20 | James Mulligan | 65 | Head | — | Connecticut |
| 21 | Ann Mulligan | 62 | Wife | — | Eire |
| 22 | James Mulligan | 28 | Son | Salesman | Massachusetts |
| 23 | Mildred Mulligan | 26 | Daughter | Clerk | Massachusetts |
| 24 | Robert Mulligan | 24 | Son | New Worker | Massachusetts |
| 25 | John Mulligan THIS PERSON | 21 | Son | Drug Clerk | Massachusetts |
| 26 | Charles L. O'Connell | 40 | Head | Hotel Office | Massachusetts |
| 27 | Alice O'Connell | 32 | Wife | — | Massachusetts |
| 28 | Felix Crear | 59 | Head | Laborer | Italy |
| 29 | Mary P. Crear | 59 | Wife | — | Italy |
| 30 | Margaret Crear | 30 | Daughter | Hair Dresser | Massachusetts |
| 31 | Rose Crear | 22 | Daughter | Waitress | Massachusetts |
| 32 | Josephine Crear | 18 | Daughter | Bench Worker | Massachusetts |
| 33 | Samuel Crear | 15 | Son | — | Massachusetts |
| 34 | Ralph Tarantino | 31 | Head | Grocer | Italy |
| 35 | Mary Tarantino | 28 | Wife | — | Massachusetts |
| 36 | Rita Tarantino | 10 | Daughter | — | Massachusetts |
| 37 | Ronald Tarantino | 5 | Son | — | Massachusetts |
| 38 | Julia Deren | 45 | Head | — | Poland |
| 39 | Natalie Deren | 15 | Daughter | — | Massachusetts |
| 40 | Irene Deren | 14 | Daughter | — | Massachusetts |
Related Census Records
Pedigree Summary
John + 3 siblings
Gen 1 · 3 parents
~0.92
Max depth 4 (1900–1950 window)
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)