JG
John Geary — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this John Geary across the 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — 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 | Geary |
| 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 | New Worker |
| Class of Worker | 0 |
| Hours Worked | 16 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | New Worker |
| 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 |
|---|---|---|---|---|
| Lorraine Geary | Daughter | — | 19 | ~1921 |
| Susan Geary | Spouse | — | 45 | ~1895 |
| John Geary | Son | — | 21 | ~1919 |
| Christopher Geary | Head | — | 52 | ~1888 |
| Angelina Geary | Daughter | — | 22 | ~1918 |
| Katherine Geary | Daughter | — | 20 | ~1920 |
Census Appearances
1930
Suffolk, Massachusetts
Son, age 11
Suffolk, Massachusetts · implied b. ~1919 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gurry |
| Given Name | John F |
| 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
Suffolk-County, Massachusetts
Son, age 21
Suffolk-County, Massachusetts · implied b. ~1919 — 6 household members
| Surname | Geary |
| 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 | New Worker |
| Class of Worker | 0 |
| Hours Worked | 16 |
| 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 Geary across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Geary
Son · 1940 · age 21 · b. ~1919 · Massachusetts
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Sibling
Lorraine Geary
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Angelina Geary
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Katherine Geary
Sibling · 1940 · age 20
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-t0627-01668-00461)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Joseph M. Bishop | 49 | Head | Storekeeper | Massachusetts |
| 42 | Mary Bishop | 47 | Wife | — | Massachusetts |
| 43 | Margaret Bishop | 18 | Daughter | Clerk | Massachusetts |
| 44 | Robert Bishop | 16 | Son | — | Massachusetts |
| 45 | Anthony Kisiel | 44 | Head | Baker | Poland |
| 46 | Mary Kisiel | 44 | Wife | Baker'S Helper | Poland |
| 47 | Sophie N. Kisiel | 23 | Daughter | Salesgirl | Massachusetts |
| 48 | Anna Kisiel | 21 | Daughter | Salesgirl | Massachusetts |
| 49 | Stanley Kisiel | 19 | Son | Truck Cleaner | Massachusetts |
| 50 | Alexander Kisiel | 47 | Brother | Florist | Poland |
| 51 | Margaret Mcclancy | 50 | Head | School Teacher | Massachusetts |
| 52 | Joseph Doherty | 44 | Head | Freight Handler | Massachusetts |
| 53 | Margaret Doherty | 48 | Wife | — | New York |
| 54 | Margaret Wilhelmi | 55 | Head | — | Massachusetts |
| 55 | Joseph Wilhelmi | 26 | Son | Clerk | Massachusetts |
| 56 | Charles H. Wilhelmi | 25 | Son | Machinist | Massachusetts |
| 57 | Julius B. Wilhelmi | 23 | Son | Counterman | Massachusetts |
| 58 | Alonzo D. Wilhelmi | 21 | Son | Cabinet Maker | Massachusetts |
| 59 | Joseph Romile | 52 | Head | Real Estate | Massachusetts |
| 60 | Mary Romile | 40 | Wife | — | New Hampshire |
| 61 | Mary E. Romile | 17 | Daughter | — | New Hampshire |
| 62 | Patricia Romile | 16 | Daughter | — | Massachusetts |
| 63 | John J. O'Brien | 29 | Head | Watchman | Massachusetts |
| 64 | Katherine O'Brien | 26 | Wife | — | Massachusetts |
| 65 | Mary O'Brien | 4 | Daughter | — | Massachusetts |
| 66 | Thomas Mckenna | 24 | Boarder | Auto Washer | Massachusetts |
| 67 | John Gillis | 52 | Head | Ship Fitter | Massachusetts |
| 68 | Mary White | 54 | Sister | Tucker | Massachusetts |
| 69 | Thomas Collins | 40 | Cousin | Stationary Fireman | England |
| 70 | Dora Collins | 49 | Cousin | Packer | Massachusetts |
| 71 | Edward J. Day | 64 | Head | Blacksmith | New York |
| 72 | Margaret A. Day | 64 | Wife | — | England |
| 73 | Christopher Geary | 52 | Head | Shoemaker | Ireland |
| 74 | Susan Geary | 45 | Wife | — | Ireland |
| 75 | Angelina Geary | 22 | Daughter | Assistant | Massachusetts |
| 76 | John Geary THIS PERSON | 21 | Son | New Worker | Massachusetts |
| 77 | Katherine Q. Geary | 20 | Daughter | Stenographer | Massachusetts |
| 78 | Lorraine Geary | 19 | Daughter | — | Massachusetts |
| 79 | Katherine C. Doyle | 36 | Head | — | Massachusetts |
| 80 | Jeanne Doyle | 10 | Daughter | — | 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)