WD
William Donnelly — 1940 US Census Record
Model Tree available1940 United States Federal Census · Hampden-County, Massachusetts
Our Model Tree links this William Donnelly across the 1920, 1930 and 1940 US Censuses in Hampden-County, Massachusetts (XGBoost, ~Confirmed), with identified parents James & James — first a head (b.~1910), then head of a 4-person household.
Age 30
b. ~1910
Male
Head
Born: Scotland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Hampden-County, Massachusetts |
| Surname | Donnelly |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | CHICOPEE city |
| 1935 Residence (County) | HAMPDEN |
| Naturalization Status | First papers filed |
| Additional Details | |
| Occupation | Rifler |
| Industry | Gun Shop |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1500 |
| Highest Grade | H-1 |
| 1935 Residence | Same place |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
| Occupation | Rifler |
| Township / Ward | Chicopee City |
| Est. Birth Year | ~1910 |
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 William | Age | Birth yr |
|---|---|---|---|---|
| Annie Donnelly | Spouse | — | 26 | ~1914 |
| Anne Donnelly | Daughter | — | 2 | ~1938 |
| William Donnelly | Head | — | 30 | ~1910 |
| Muriel Donnelly | Daughter | — | ~1940 |
Census Appearances
1920
Hampden, Massachusetts
Son, age 10
Hampden, Massachusetts · implied b. ~1910 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Donnelly |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Scotland |
| Year of Immigration | 1903 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Scotch |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1930
Hampden, Massachusetts
Son, age 20
Hampden, Massachusetts · implied b. ~1910 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Donnelly |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Scotland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1914 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Tester |
| Industry | Electric Mfg. Co. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Veteran | No |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1940
Hampden-County, Massachusetts
Head, age 30
Hampden-County, Massachusetts · implied b. ~1910 — 4 household members
| Surname | Donnelly |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | CHICOPEE city |
| 1935 Residence (County) | HAMPDEN |
| Naturalization Status | First papers filed |
| Occupation | Rifler |
| Industry | Gun Shop |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1500 |
| Highest Grade | H-1 |
| 1935 Residence | Same place |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
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 William Donnelly across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father James Donnelly (~0.92 confidence) and father James Donnelly (~0.92 confidence) and mother Helen Donnelly (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Donnelly
b. ~1879
Source father
● Household
· direct · ~0.92
Father
James Donnelly
b. ~1877
Source father
● Household
· direct · ~0.92
Mother
Helen Donnelly
b. ~1888
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Donnelly
Head · 1940 · age 30 · b. ~1910 · 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-t0627-01594-00042)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Catherine Freyburger | 57 | Head | — | Vermont |
| 2 | Joseph Freyburger | 25 | Son | Wood Machine Operator | New York |
| 3 | William Freyburger | 23 | Son | Inspector | Massachusetts |
| 4 | Margaret Freyburger | 17 | Daughter | — | Massachusetts |
| 5 | Ronald Cavanaugh | 41 | Head | Rubber Cutter | Massachusetts |
| 6 | Cecile Cavanaugh | 39 | Wife | — | Massachusetts |
| 7 | Joan Cavanaugh | 15 | Daughter | — | Massachusetts |
| 8 | William Riley | 37 | Head | Fire Man | Massachusetts |
| 9 | Elizabeth Riley | 34 | Wife | — | Massachusetts |
| 10 | Stanley Stachelek | 28 | Head | Printer | Massachusetts |
| 11 | Agnes Stachelek | 28 | Wife | — | Poland |
| 12 | Mary Gleason | 61 | Head | — | Connecticut |
| 13 | David Gleason | 32 | Son | Tire Maker | Massachusetts |
| 14 | Marjorie Gleason | 22 | Daughter | Time Clerk | Massachusetts |
| 15 | Elizabeth Nolan | 52 | Head | — | Eire |
| 16 | Eugene Nolan | 27 | Son | Draftsman | Massachusetts |
| 17 | Kenneth Nolan | 25 | Son | Office Clerk | Massachusetts |
| 18 | John J. Nolan | 54 | Brother | Repair Man | Eire |
| 19 | Delia Lafleur | 55 | Head | — | Massachusetts |
| 20 | Walter Lafleur | 25 | Son | Mechanic | Massachusetts |
| 21 | Alma Labrecque | 53 | Sister | — | Massachusetts |
| 22 | Christian Schroeder | 47 | Head | — | Massachusetts |
| 23 | Catherine Schroeder | 44 | Wife | — | Massachusetts |
| 24 | Carl Schroeder | 20 | Son | Shipping Clerk | Massachusetts |
| 25 | William Donnelly THIS PERSON | 30 | Head | Rifler | Scotland |
| 26 | Annie Donnelly | 26 | Wife | — | Massachusetts |
| 27 | Anne Donnelly | 2 | Daughter | — | Massachusetts |
| 28 | Muriel Donnelly | 0 | Daughter | — | Massachusetts |
| 29 | Robert Graham | 23 | Head | Wood Worker | Massachusetts |
| 30 | Rita Graham | 23 | Wife | — | Massachusetts |
| 31 | Philip Leader | 48 | Head | Proprietor | Poland |
| 32 | Sophie Leader | 44 | Wife | Clerk | Poland |
| 33 | Thomas P. Hallinan | 45 | Head | Contractor | Massachusetts |
| 34 | Grace Hallinan | 42 | Wife | — | Massachusetts |
| 35 | Charles Vose | 36 | Head | Sales Clerk | New Hampshire |
| 36 | Celia Vose | 33 | Wife | — | Massachusetts |
| 37 | Eleanor Vose | 2 | Daughter | — | Massachusetts |
| 38 | Wallace Myott | 36 | Head | Textile Engineer | New York |
| 39 | Dorothy Myott | 34 | Wife | — | Massachusetts |
| 40 | Brent Myott | 2 | Son | — | Massachusetts |
Pedigree Summary
William
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)