JF
John Flanagan — 1940 US Census Record
Model Tree available1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this John Flanagan across the 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed), with identified parents James & James — first a son (b.~1918), then head of a 5-person household.
Age 22
b. ~1918
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Flanagan |
| Given Name | John J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Somerville city |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Occupation | Cooler man |
| Industry | Meat packing |
| Class of Worker | PW |
| Hours Worked | 35 |
| Income (1939) | 496 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Cooler Man |
| Township / Ward | Somerville City |
| Est. Birth Year | ~1918 |
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 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Gerald Flanagan | Son | — | 26 | ~1914 |
| Celia Flanagan | Daughter | — | 14 | ~1926 |
| Ragnar Flanagan | Spouse | — | 46 | ~1894 |
| John Flanagan | Head | — | 50 | ~1890 |
| John Flanagan | Son | — | 22 | ~1918 |
Census Appearances
1920
Middlesex, Massachusetts
Son, age 1
Middlesex, Massachusetts · implied b. ~1919 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Flanigan |
| Given Name | John J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Middlesex, Massachusetts
Son, age 11
Middlesex, Massachusetts · implied b. ~1919 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Flanagan |
| Given Name | John J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| 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
Middlesex-County, Massachusetts
Son, age 22
Middlesex-County, Massachusetts · implied b. ~1918 — 5 household members
| Surname | Flanagan |
| Given Name | John J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Somerville city |
| 1935 Residence (County) | Middlesex |
| Occupation | Cooler man |
| Industry | Meat packing |
| Class of Worker | PW |
| Hours Worked | 35 |
| Income (1939) | 496 |
| 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 Flanagan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father James Flanigan (~0.92 confidence) and father James Flanagan (~0.92 confidence) and father John Flanagan (~0.92 confidence) and mother Gertrude Flanigan (~0.92 confidence) and mother Ragnar Flanagan (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Flanigan
b. ~1893
Source father
● Household
· direct · ~0.92
Father
James Flanagan
b. ~1892
Source father
● Household
· direct · ~0.92
Father
John Flanagan
b. ~1890
Source father
● Household
· direct · ~0.92
Mother
Gertrude Flanigan
b. ~1894
Source mother
● Household
· direct · ~0.92
Mother
Ragnar Flanagan
b. ~1894
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Flanagan
Son · 1940 · age 22 · b. ~1918 · Massachusetts
★ You are viewing this record
Sibling
Gerald Flanagan
Sibling · 1940 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Celia Flanagan
Sibling · 1940 · age 14
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 — Middlesex-County, Massachusetts
Open full size
1940 US Federal Census — Middlesex-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01703-00553)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Gladys J. Lamb | 39 | Wife | Waitress | Maine |
| 2 | George Noble | 59 | Head | Painter | Massachusetts |
| 3 | Evelyn Noble | 46 | Wife | — | Massachusetts |
| 4 | John Noble | 24 | Son | Clerk | Massachusetts |
| 5 | John Hanson | 56 | Head | Druggist | Norway |
| 6 | Catherine L. Hanson | 56 | Wife | — | Rhode Island |
| 7 | Frank P. Libbey | 68 | Head | Newspaper Man | Maine |
| 8 | Alice M. Libbey | 56 | Wife | — | Maine |
| 9 | John J. Flanagan | 50 | Head | Bldg. Supt. | Massachusetts |
| 10 | Ragnar M. Flanagan | 46 | Wife | — | Canada French |
| 11 | Celia C. Flanagan | 14 | Daughter | — | Massachusetts |
| 12 | John J. Flanagan THIS PERSON | 22 | Son | Cooler Man | Massachusetts |
| 13 | Gerald H. Flanagan | 26 | Son | Demonstrator | Massachusetts |
| 14 | Claude Furrow | 34 | Head | Accountant | New York |
| 15 | Lucille Furrow | 28 | Wife | — | Florida |
| 16 | Ellen Jones | 72 | Head | — | Massachusetts |
| 17 | Leah M. Jones | 38 | Daughter | Contingent | Massachusetts |
| 18 | Alice E. Jones | 37 | Daughter | Secretary | Massachusetts |
| 19 | Philip E. O'Connor | 31 | Head | Bookkeeper | Massachusetts |
| 20 | Margaret E. O'Connor | 31 | Wife | — | Massachusetts |
| 21 | Elizabeth C. Talbot | 43 | Head | Fitter | Canada English |
| 22 | Joseph L. Goodman | 47 | Head | Officer | New York |
| 23 | John O. Percival | 30 | Head | Chemist | Illinois |
| 24 | Alice H. Percival | 25 | Wife | Secretary | Massachusetts |
| 25 | Mae V. O'Brien | 51 | Head | Secretary | Massachusetts |
| 26 | Thomas Reardon | 54 | Lodger | Produce | Mass. |
| 27 | Martha L. Dumont | 57 | Head | Teacher | Massachusetts |
| 28 | Mary L. Dumont | 62 | Wife | — | Massachusetts |
| 29 | Timothy J. Sheehy | 62 | Head | Manager | Eire |
| 30 | Emma M. Sheehy | 61 | Wife | — | England |
| 31 | Edward Waldron | 36 | Head | Salesman | Massachusetts |
| 32 | Helen Waldron | 37 | Wife | — | Massachusetts |
| 33 | Caroline E. Ingram | 71 | Head | — | Massachusetts |
| 34 | Ruth F. Ingram | 43 | Daughter | — | Massachusetts |
| 35 | Hinda S. Cohen | 69 | Head | — | Massachusetts |
| 36 | Bernice G. Cohen | 48 | Daughter | — | Massachusetts |
| 37 | Sadie Schwartz | 65 | Sister | — | Massachusetts |
| 38 | Elizabeth Weaver | 53 | Head | Teacher | Massachusetts |
| 39 | Caroline Weaver | 83 | Mother | — | New York |
| 40 | James Watson | 53 | Head | Salesman | Greece |
Pedigree Summary
John + 2 siblings
Gen 1 · 5 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)