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Donald Walker — 1940 US Census Record
Model Tree available1940 United States Federal Census · Worcester-County, Massachusetts
Our Model Tree links this Donald Walker across the 1920, 1930 and 1940 US Censuses in Worcester-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Ernest & Sarah — first a son (b.~1913), then head of a 4-person household.
Age 27
b. ~1913
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Worcester-County, Massachusetts |
| Surname | Walker |
| Given Name | Donald A. (ab) |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Worcester city |
| 1935 Residence (County) | Worcester |
| Additional Details | |
| Occupation | Medical Doctor |
| Industry | Hospital |
| Class of Worker | PW |
| Income (1939) | 100 |
| Highest Grade | C 5 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Medical Doctor |
| Township / Ward | Worcester City |
| Est. Birth Year | ~1913 |
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 Donald | Age | Birth yr |
|---|---|---|---|---|
| Sarah Walker | Spouse | — | 63 | ~1877 |
| Janet Walker | Daughter | — | 26 | ~1914 |
| Ernest Walker | Head | — | 57 | ~1883 |
| Donald Walker | Son | — | 27 | ~1913 |
Census Appearances
1920
Worcester, Massachusetts
Son, age 7
Worcester, Massachusetts · implied b. ~1913 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Walker |
| Given Name | Donald A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Maine |
| Mother's Birthplace | Nova Scotia |
| Can Read | No |
| Can Write | No |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Worcester, Massachusetts
Son, age 17
Worcester, Massachusetts · implied b. ~1913 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Walker |
| Given Name | Donald A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Maine |
| Mother's Birthplace | Canada-English |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Worcester-County, Massachusetts
Son, age 27
Worcester-County, Massachusetts · implied b. ~1913 — 4 household members
| Surname | Walker |
| Given Name | Donald A. (ab) |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Worcester city |
| 1935 Residence (County) | Worcester |
| Occupation | Medical Doctor |
| Industry | Hospital |
| Class of Worker | PW |
| Income (1939) | 100 |
| Highest Grade | C 5 |
| 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 Donald Walker across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Ernest Walker (~0.92 confidence) and mother Sarah Walker (~0.92 confidence) and mother Sarah Walker (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Ernest Walker
b. ~1884
Source father
● Household
· direct · ~0.92
Mother
Sarah Walker
b. ~1877
Source mother
● Household
· direct · ~0.92
Mother
Sarah Walker
b. ~1878
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Donald Walker
Son · 1940 · age 27 · b. ~1913 · Massachusetts
★ You are viewing this record
Sibling
Janet Walker
Sibling · 1940 · age 26
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 — Worcester-County, Massachusetts
Open full size
1940 US Federal Census — Worcester-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01718-00272)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Eugene E. Day | 64 | Head | Machinist | Vermont |
| 2 | Eva E. Day | 64 | Wife | — | Massachusetts |
| 3 | Robert E. Day | 23 | Son | Cabinet Maker | Massachusetts |
| 4 | Allyn W. Hixon | 64 | Head | Owner & Operator | Massachusetts |
| 5 | Fannie A. Hixon | 67 | Wife | — | Massachusetts |
| 6 | William G. King | 49 | Head | Stationary Eng. | Massachusetts |
| 7 | Thelma S. King | 34 | Wife | — | Canada-English |
| 8 | Richard I. King | 18 | Son | — | Massachusetts |
| 9 | Royal P. Leland | 63 | Head | Toolmaker | Massachusetts |
| 10 | Florence C. Leland | 61 | Wife | — | Rhode Island |
| 11 | Royal W. Leland | 39 | Son | Shipping Clerk | Massachusetts |
| 12 | Earl H. Leland | 24 | Son | Hardware Clk. | Massachusetts |
| 13 | Julia A. Carey | 87 | Mother-in-law | — | Rhode Island |
| 14 | Ernest A. Walker | 57 | Head | Chief Mech. Eng. | Maine |
| 15 | Sarah C. Walker | 63 | Wife | — | Canada-Eng. |
| 16 | Donald A. (Ab) Walker THIS PERSON | 27 | Son | Medical Doctor | Massachusetts |
| 17 | Janet C. Walker | 26 | Daughter | — | Massachusetts |
| 18 | Margaret Mollany | 62 | Head | Teacher | Massachusetts |
| 19 | Ambrose P. Errickson | 46 | Head | Mechanic | New Jersey |
| 20 | Vera S. Errickson | 43 | Wife | — | New Jersey |
| 21 | Shirley Errickson | 13 | Daughter | — | Massachusetts |
| 22 | Fred W. Prentiss | 81 | Head | — | Massachusetts |
| 23 | S. Emily Fisher | 77 | Sister-in-law | — | Massachusetts |
| 24 | Leila M. Stone | 58 | Housekeeper | Housekeeper | Massachusetts |
| 25 | Theodore J. Lowell | 40 | Head | Boiler Engineer | Massachusetts |
| 26 | Irene B. Lowell | 36 | Wife | — | Massachusetts |
| 27 | Dorothy E. Lowell | 18 | Daughter | Typist | Massachusetts |
| 28 | Shirley E. Lowell | 15 | Daughter | — | Massachusetts |
| 29 | Frederick A. Shannon | 29 | Roomer | Salesman | Massachusetts |
| 30 | Thomas F. Morrissey | 47 | Head | Guard | Massachusetts |
| 31 | Delia M. Morrissey | 47 | Wife | — | Ireland |
| 32 | Alice M. Morrissey | 16 | Daughter | — | Massachusetts |
| 33 | Robert L. S. Whitmore | 70 | Head | Collector | Massachusetts |
| 34 | Edith E. Whitmore | 68 | Wife | — | Massachusetts |
| 35 | Bernard F. Gilmartin | 46 | Head | Contractor | Massachusetts |
| 36 | Louise A. Gilmartin | 46 | Wife | — | Massachusetts |
| 37 | Robert Gilmartin | 19 | Son | Plumber'S Helper | Massachusetts |
| 38 | Paul Gilmartin | 18 | Son | — | Massachusetts |
| 39 | Barbara Gilmartin | 16 | Daughter | — | Massachusetts |
| 40 | John Gilmartin | 14 | Son | — | Massachusetts |
Related Census Records
Pedigree Summary
Donald + 1 sibling
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)