JM
John Mason — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Hampden-County, Massachusetts
Our Model Tree links this John Mason across the 1920, 1930 and 1940 US Censuses in Hampden-County, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1887), then head of a 4-person household.
Age 53
b. ~1887
Male
Head
Born: Vermont
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Hampden-County, Massachusetts |
| Surname | Mason |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Vermont |
| 1935 Residence (City) | Springfield |
| 1935 Residence (County) | Hampden |
| Additional Details | |
| Occupation | Laborer |
| Industry | WPA Project |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 310 |
| Highest Grade | No 8 |
| 1935 Residence | Massachusetts |
| Birth State | Vermont |
| Birth Country | United States |
| Birthplace (normalized) | vermont |
| Occupation | Laborer |
| Township / Ward | Springfield |
| Est. Birth Year | ~1887 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Natalie Mason | Daughter | — | 18 | ~1922 |
| John Mason | Head | — | 53 | ~1887 |
| Robert Mason | Son | — | 24 | ~1916 |
| Stella Mason | Spouse | — | 28 | ~1912 |
Census Appearances
1920
Hampden, Massachusetts
Head, age 27
Hampden, Massachusetts · implied b. ~1893 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mason |
| Given Name | John H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Vermont |
| Father's Birthplace | Vermont |
| Mother's Birthplace | Vermont |
| Occupation | Agent |
| Industry | Auto Supplies |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Vermont |
| Birth Country | United States |
| Birthplace (normalized) | vermont |
1930
Hampden, Massachusetts
Head, age 42
Hampden, Massachusetts · implied b. ~1888 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mason |
| Given Name | John R. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Vermont |
| Age at First Marriage | 19 |
| Father's Birthplace | Canada French |
| Mother's Birthplace | Vermont |
| Occupation | Conductor |
| Industry | Street Railroad |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 40 |
| Birth State | Vermont |
| Birth Country | United States |
| Birthplace (normalized) | vermont |
1940
Hampden-County, Massachusetts
Head, age 53
Hampden-County, Massachusetts · implied b. ~1887 — 4 household members
| Surname | Mason |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Vermont |
| 1935 Residence (City) | Springfield |
| 1935 Residence (County) | Hampden |
| Occupation | Laborer |
| Industry | WPA Project |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 310 |
| Highest Grade | No 8 |
| 1935 Residence | Massachusetts |
| Birth State | Vermont |
| Birth Country | United States |
| Birthplace (normalized) | vermont |
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 Mason across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Mason
Head · 1940 · age 53 · b. ~1887 · 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 — Hampden-County, Massachusetts
Open full size
1940 US Federal Census — Hampden-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01706-00361)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Cecile Marfel | 30 | Wife | Counter Clerk | Canada-French |
| 42 | Katherine Burke | 50 | Head | — | Massachusetts |
| 43 | May Burke | 45 | Sister | Office Clerk | Massachusetts |
| 44 | Daniel Healey | 61 | Head | Time Keeper | Massachusetts |
| 45 | Laura Healey | 50 | Wife | — | Canada-French |
| 46 | Rita Healey | 15 | Daughter | — | Massachusetts |
| 47 | George Kingsbury | 61 | Head | Carpenter | New Hampshire |
| 48 | Clara Kingsbury | 55 | Wife | — | New Hampshire |
| 49 | Raoul De Grandpre | 41 | Head | Bar Tender | Massachusetts |
| 50 | Rhea De Grandpre | 39 | Wife | — | Massachusetts |
| 51 | Lucilla De Grandpre | 17 | Daughter | — | Massachusetts |
| 52 | Eugene De Grandpre | 15 | Son | — | Massachusetts |
| 53 | Therese De Grandpre | 6 | Daughter | — | Massachusetts |
| 54 | Adelard Boudreau | 26 | Head | Painter | Canada-French |
| 55 | Marie Rose Boudreau | 25 | Wife | — | Maine |
| 56 | Robert Boudreau | 4 | Son | — | Massachusetts |
| 57 | Jennette Boudreau | 1 | Daughter | — | Massachusetts |
| 58 | Harold Gracen | 46 | Head | Braille Transcriber | Massachusetts |
| 59 | Cora Gracen | 32 | Wife | — | Massachusetts |
| 60 | Thomas Russell | 28 | Head | Machinist | New Hampshire |
| 61 | Helen Russell | 24 | Wife | — | New York |
| 62 | Dorothy Russell | 7 | Daughter | — | Massachusetts |
| 63 | Eugene Moriarty | 39 | Head | Janitor | Irish Free State |
| 64 | Anna Moriarty | 39 | Wife | — | Irish Free State |
| 65 | Kathleen Moriarty | 1 | Daughter | — | Massachusetts |
| 66 | Margerite Sparrow | 41 | Head | — | Canada-French |
| 67 | June Sparrow | 18 | Daughter | Clerk | Massachusetts |
| 68 | Donald Sparrow | 15 | Son | — | Massachusetts |
| 69 | John Mason THIS PERSON | 53 | Head | Laborer | Vermont |
| 70 | Stella Mason | 28 | Wife | Seamstress | Massachusetts |
| 71 | Robert Mason | 24 | Son | New Worker | Massachusetts |
| 72 | Natalie Mason | 18 | Daughter | New Worker | Massachusetts |
| 73 | Julius Brown | 42 | Head | Butcher | Russia |
| 74 | Raeha Brown | 38 | Wife | — | New York |
| 75 | Sandra Brown | 10 | Daughter | — | Massachusetts |
| 76 | Merton Brown | 5 | Son | — | Massachusetts |
| 77 | Harry Milman | 66 | Head | 70 | Russia |
| 78 | Rachel Milman | 56 | Wife | — | Russia Poland |
| 79 | Frederick Massey | 61 | Head | — | Canada-French |
| 80 | Rubie Massey | 59 | Wife | — | Vermont |
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)