MP
Mary Palmer — 1940 US Census Record
Model Tree available1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Mary Palmer across the 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Raffaela & John — first a daughter (b.~1920), then head of a 4-person household.
Age 20
b. ~1920
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Palmer |
| Given Name | Mary A. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Somerville city |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Occupation | Typist |
| Industry | City |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 700 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Typist |
| Township / Ward | Somerville City |
| Est. Birth Year | ~1920 |
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 Palmer | Daughter | — | 20 | ~1920 |
| Carmella Palmer | Daughter | — | 23 | ~1917 |
| John Palmer | Head | — | 50 | ~1890 |
| Raffaela Palmer | Spouse | — | 50 | ~1890 |
Census Appearances
1920
Middlesex, Massachusetts
Daughter, age
Middlesex, Massachusetts · implied b. ~1920 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Palmer |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Italy |
| Mother's Birthplace | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Middlesex, Massachusetts
Daughter, age 10
Middlesex, Massachusetts · implied b. ~1920 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Palmer |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Age at First Marriage | No |
| Father's Birthplace | Italy |
| Mother's Birthplace | Massachusetts |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Daughter, age 20
Middlesex-County, Massachusetts · implied b. ~1920 — 4 household members
| Surname | Palmer |
| Given Name | Mary A. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Somerville city |
| 1935 Residence (County) | Middlesex |
| Occupation | Typist |
| Industry | City |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 700 |
| 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 Palmer across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Raffaela Palmer (~0.92 confidence) and father John Palmer (~0.92 confidence) and mother Catherine Palmer (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Raffaela Palmer
b. ~1890
Source mother
● Household
· direct · ~0.92
Father
John Palmer
b. ~1892
Source father
● Household
· direct · ~0.92
Mother
Catherine Palmer
b. ~1893
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Palmer
Daughter · 1940 · age 20 · b. ~1920 · Massachusetts
★ You are viewing this record
Sibling
Carmella Palmer
Sibling · 1940 · age 23
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 — Middlesex-County, Massachusetts
Open full size
1940 US Federal Census — Middlesex-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01702-00113)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Margaret M. Malone | 25 | Niece | Clerk | Massachusetts |
| 2 | Elizabeth M. O'Leary | 62 | Head | Cook | Eire |
| 3 | Anna M. O'Leary | 57 | Sister | Waitress | Eire |
| 4 | Mary J. Buckley | 41 | Lodger | Waitress | Eire |
| 5 | Edward F. O'Connell | 35 | Head | Milk Man | Massachusetts |
| 6 | Lillian M. O'Connell | 27 | Wife | — | Massachusetts |
| 7 | Frances J. O'Connell | 12 | Daughter | — | Massachusetts |
| 8 | Carl A. Henriksen | 51 | Head | Cabinet Maker | Sweden |
| 9 | Ruth N. Henriksen | 48 | Wife | — | Sweden |
| 10 | Carl A. Henriksen | 12 | Son | — | Massachusetts |
| 11 | Ruth G. Henriksen | 9 | Daughter | — | Massachusetts |
| 12 | Edward P. Fansen | 28 | Head | Electrician Helper | Massachusetts |
| 13 | Eileen M. Fansen | 26 | Wife | — | Massachusetts |
| 14 | Edward P. Jr. Fansen | 2 | Son | — | Massachusetts |
| 15 | Walter J. Jr. Welch | 23 | Head | Checker | Massachusetts |
| 16 | Doris Welch | 22 | Wife | — | Massachusetts |
| 17 | Patricia Welch | 1 | Daughter | — | Massachusetts |
| 18 | Thomas Punzo | 31 | Head | Laborer | New York |
| 19 | Mary D. Punzo | 26 | Wife | — | Massachusetts |
| 20 | Lorraine Punzo | 1 | Daughter | — | Massachusetts |
| 21 | John Palmer | 50 | Head | Painter Tender | Italy |
| 22 | Raffaela M. Palmer | 50 | Wife | — | Massachusetts |
| 23 | Carmella M. Palmer | 23 | Daughter | Secretary | Massachusetts |
| 24 | Mary A. Palmer THIS PERSON | 20 | Daughter | Typist | Massachusetts |
| 25 | Frank C. Chiodo | 45 | Head | Janitor | Italy |
| 26 | Jenny Chiodo | 39 | Wife | — | Vermont |
| 27 | Vincent M. Chiodo | 18 | Son | New Worker | Massachusetts |
| 28 | Rachel S. Chiodo | 16 | Daughter | — | Massachusetts |
| 29 | William A. Chiodo | 14 | Son | — | Massachusetts |
| 30 | Frank Jr. Chiodo | 11 | Son | — | Massachusetts |
| 31 | Mildred V. Chiodo | 9 | Daughter | — | Massachusetts |
| 32 | Edward A. Chiodo | 7 | Son | — | Massachusetts |
| 33 | Joseph Costanza | 55 | Head | Packer | Italy |
| 34 | Augustina J. Costanza | 14 | Son | — | Massachusetts |
| 35 | Winifred Powers | 58 | Head | — | Wales |
| 36 | William J. Powers | 26 | Son | Clerk | Massachusetts |
| 37 | Josephine A. Powers | 22 | Daughter | Cashier | Massachusetts |
| 38 | Angelo Palmer | 55 | Head | Plasterer | Italy |
| 39 | Rose Palmer | 55 | Wife | — | Italy |
| 40 | Eva Palmer | 31 | Daughter | Clerk | Massachusetts |
Related Census Records
Pedigree Summary
Mary + 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)