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Mary Long — 1940 US Census Record
Model Tree available1940 United States Federal Census · Hampshire-County, Massachusetts
Our Model Tree links this Mary Long across the 1920, 1930 and 1940 US Censuses in Hampshire-County, Massachusetts (XGBoost, ~Confirmed), with identified parents James & Patrick — first a daughter (b.~1917), then head of a 4-person household.
Age 23
b. ~1917
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Hampshire-County, Massachusetts |
| Surname | Long |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | So. Hadley Falls |
| 1935 Residence (County) | Hampshire |
| Additional Details | |
| Occupation | Waitress |
| Industry | Tea Room |
| Class of Worker | PW |
| Hours Worked | 24 |
| Income (1939) | 450 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Waitress |
| Township / Ward | So Hadley Falls |
| 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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Long | Daughter | — | 23 | ~1917 |
| James Long | Head | — | 63 | ~1877 |
| Thomas Long | Son | — | 25 | ~1915 |
| Ellen Long | Spouse | — | 63 | ~1877 |
Census Appearances
1920
Hampden, Massachusetts
Daughter, age 3
Hampden, Massachusetts · implied b. ~1917 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Long |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Hampden, Massachusetts
Daughter, age 13
Hampden, Massachusetts · implied b. ~1917 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Long |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| 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
Hampshire-County, Massachusetts
Daughter, age 23
Hampshire-County, Massachusetts · implied b. ~1917 — 4 household members
| Surname | Long |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | So. Hadley Falls |
| 1935 Residence (County) | Hampshire |
| Occupation | Waitress |
| Industry | Tea Room |
| Class of Worker | PW |
| Hours Worked | 24 |
| Income (1939) | 450 |
| 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 Mary Long across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father James Long (~0.92 confidence) and father Patrick Long (~0.92 confidence) and mother Delia Long (~0.92 confidence) and mother Ellen Long (~0.92 confidence) and mother Delia Long (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Long
b. ~1877
Source father
● Household
· direct · ~0.92
Father
Patrick Long
b. ~1885
Source father
● Household
· direct · ~0.92
Mother
Delia Long
b. ~1886
Source mother
● Household
· direct · ~0.92
Mother
Ellen Long
b. ~1877
Source mother
● Household
· direct · ~0.92
Mother
Delia Long
b. ~1887
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Long
Daughter · 1940 · age 23 · b. ~1917 · Massachusetts
★ You are viewing this record
Sibling
Thomas Long
Sibling · 1940 · age 25
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 — Hampshire-County, Massachusetts
Open full size
1940 US Federal Census — Hampshire-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01600-00732)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Henry D. Delarme | 45 | Head | Laborer | Massachusetts |
| 42 | Marie E. Delarme | 76 | Mother | — | New York |
| 43 | James J. Long | 63 | Head | Retired | Massachusetts |
| 44 | Ellen D. Long | 63 | Wife | — | Ireland |
| 45 | Thomas Long | 25 | Son | Supervisor | Massachusetts |
| 46 | Mary Long THIS PERSON | 23 | Daughter | Waitress | Massachusetts |
| 47 | Clifton White | 37 | Head | Salesman | New York |
| 48 | Eva D. White | 40 | Wife | Plater Girl | Massachusetts |
| 49 | Geraldine White | 12 | Daughter | — | Massachusetts |
| 50 | Stuart Reynolds | 29 | Head | Assistant Treasurer | Massachusetts |
| 51 | Elizabeth Reynolds | 28 | Wife | Sealer | Massachusetts |
| 52 | Leslie S. Reynolds | 7 | Son | — | Massachusetts |
| 53 | Lester Jackson | 64 | Head | Locksmith | Massachusetts |
| 54 | Jennie D. Jackson | 67 | Wife | — | Canada |
| 55 | Esther Jackson | 39 | Daughter | Stenographer | New Hampshire |
| 56 | Edmund Jackson | 22 | Son | Counting Student | Massachusetts |
| 57 | James Simpson | 30 | Lodger | Tree Surgeon | Massachusetts |
| 58 | Herman Boyer | 69 | Head | Weaver | Germany |
| 59 | Augusta D. Boyer | 65 | Wife | — | Germany |
| 60 | Martin Piersol | 51 | Head | Millwright | New York |
| 61 | Selena D. Piersol | 56 | Wife | — | Germany |
| 62 | Alice J. Piersol | 28 | Daughter | Stenographer | Massachusetts |
| 63 | Selina Engleman | 77 | Mother in law | — | Germany |
| 64 | Samuel Ripa | 27 | Head | Assistant Traffic Manager | Connecticut |
| 65 | Mae E. Ripa | 27 | Wife | Machine Operator | Massachusetts |
| 66 | John A. Hereth | 62 | Head | Cutter | Germany |
| 67 | Cordes Frieda Hereth | 45 | Sister | Stenographer | Massachusetts |
| 68 | Wayne Hereth | 18 | Nephew | Painter | Massachusetts |
| 69 | Arthur D. Hyde | 70 | Head | Purchasing Agent | Massachusetts |
| 70 | Arthur J. Hyde | 22 | Son | Shipping Clerk | Massachusetts |
| 71 | Christian Koeller | 74 | Head | Machinist | Germany |
| 72 | Martha Koeller | 48 | Daughter | Inspector | Massachusetts |
| 73 | Joseph Czech | 48 | Head | Papermaker | Poland |
| 74 | Tekla D. Czech | 43 | Wife | — | Poland |
| 75 | Henry Czech | 22 | Son | Clerk | Massachusetts |
| 76 | Martha Czech | 20 | Daughter | Retailer | Massachusetts |
| 77 | Alice J. Czech | 10 | Daughter | — | Massachusetts |
| 78 | Dorothy Czech | 6 | Daughter | — | Massachusetts |
| 79 | Wilfred Galipeau | 50 | Head | Clerk | Maine |
| 80 | Yvonne Galipeau | 47 | Wife | Laundress | Massachusetts |
Pedigree Summary
Mary + 1 sibling
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)