MW
Mary Waters — 1940 US Census Record
Model Tree available1940 United States Federal Census · Essex-County, Massachusetts
Our Model Tree links this Mary Waters across the 1920, 1930 and 1940 US Censuses in Essex-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Helen & Henry — first a daughter (b.~1918), then head of a 3-person household.
Age 22
b. ~1918
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Essex-County, Massachusetts |
| Surname | Waters |
| Given Name | Mary L. |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Peabody City |
| 1935 Residence (County) | Essex |
| Additional Details | |
| Occupation | office worker |
| Industry | shoe goods mfg co |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 676 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Office Worker |
| Township / Ward | Peabody City |
| Est. Birth Year | ~1918 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Waters | Daughter | — | 22 | ~1918 |
| Eleanor Waters | Daughter | — | 20 | ~1920 |
| Helen Waters | Head | — | 51 | ~1889 |
Census Appearances
1920
Essex, Massachusetts
Daughter, age 1
Essex, Massachusetts · implied b. ~1919 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Waters |
| Given Name | Mary L |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Essex, Massachusetts
Daughter, age 12
Essex, Massachusetts · implied b. ~1918 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Waters |
| Given Name | Mary L |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| 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
Essex-County, Massachusetts
Daughter, age 22
Essex-County, Massachusetts · implied b. ~1918 — 3 household members
| Surname | Waters |
| Given Name | Mary L. |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Peabody City |
| 1935 Residence (County) | Essex |
| Occupation | office worker |
| Industry | shoe goods mfg co |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 676 |
| 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 Waters across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Helen Waters (~0.92 confidence) and father Henry Waters (~0.92 confidence) and father Henry Waters (~0.92 confidence) and mother Helen Waters (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Helen Waters
b. ~1886
Source mother
● Household
· direct · ~0.92
Father
Henry Waters
b. ~1886
Source father
● Household
· direct · ~0.92
Father
Henry Waters
b. ~1886
Source father
● Household
· direct · ~0.92
Mother
Helen Waters
b. ~1889
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Waters
Daughter · 1940 · age 22 · b. ~1918 · Massachusetts
★ You are viewing this record
Sibling
Eleanor Waters
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 — Essex-County, Massachusetts
Open full size
1940 US Federal Census — Essex-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01588-00048)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Mary D. Comeau | 33 | wife | — | Massachusetts |
| 42 | Mary B. Comeau | 5 | daughter | — | — |
| 43 | Helen R. Waters | 51 | head | — | Massachusetts |
| 44 | Mary L. Waters THIS PERSON | 22 | daughter | Office Worker | Massachusetts |
| 45 | Eleanor Waters | 20 | daughter | New Worker | Massachusetts |
| 46 | Frank Cain | 61 | head | Machinist | Massachusetts |
| 47 | C. Russell Cain | 52 | brother | Supervisor | Massachusetts |
| 48 | Gertrude Field | 59 | sister | — | Massachusetts |
| 49 | Hannah Le Cain | 80 | mother | — | New Brunswick |
| 50 | Aldo Regali | 31 | head | Foreman | Italy |
| 51 | Doris Regali | 31 | wife | — | Massachusetts |
| 52 | Phyllis Regali | 2 | daughter | — | — |
| 53 | John J. Ryan | 43 | head | 36 | Massachusetts |
| 54 | Alice M. Ryan | 40 | wife | — | Massachusetts |
| 55 | Josephine A. Ryan | 17 | daughter | — | Massachusetts |
| 56 | Bernard J. Keegan | 66 | head | 50 | Ireland |
| 57 | Nora M. Keegan | 66 | wife | — | Ireland |
| 58 | Charles H. Stevens | 45 | head | 40 | Massachusetts |
| 59 | Grace Stevens | 45 | wife | — | Massachusetts |
| 60 | Marjorie Stevens | 19 | daughter | — | Massachusetts |
| 61 | Grace Stevens | 17 | daughter | — | Massachusetts |
| 62 | Kariton Smisook | 58 | head | 40 | Russia |
| 63 | Jenny Smisook | 56 | wife | — | Russia |
| 64 | Nathalie Smisook | 25 | daughter | 40 | Russia |
| 65 | George F. Watkins | 35 | head | 40 | Massachusetts |
| 66 | Lillian Watkins | 38 | wife | — | Massachusetts |
| 67 | George, Jr. Watkins | 15 | son | — | Massachusetts |
| 68 | Thelma L. Watkins | 13 | daughter | — | Massachusetts |
| 69 | Waldo Reed | 24 | head | Cutter Grinder | Massachusetts |
| 70 | Shirley Reed | 22 | wife | — | Massachusetts |
| 71 | Audrey Reed | 2 | daughter | — | — |
| 72 | John H. Ramberg | 31 | head | Mechanic | Massachusetts |
| 73 | Julia A. Ramberg | 34 | wife | — | Massachusetts |
| 74 | Carol Ann Ramberg | 1 | daughter | — | — |
| 75 | Samuel Samuelson | 54 | head | 40 | Norway |
| 76 | Melvina Samuelson | 51 | wife | — | Canada |
| 77 | Rose Samuelson | 30 | daughter | 40 | Massachusetts |
| 78 | Harold Samuelson | 20 | son | 40 | Massachusetts |
| 79 | Gladys Samuelson | 18 | daughter | 42 | Massachusetts |
| 80 | Pauline Samuelson | 14 | daughter | — | Massachusetts |
Pedigree Summary
Mary + 1 sibling
Gen 1 · 4 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)